Broiler feed for improving development of gizzard and preparation method thereof

Abstract

The application discloses a kind of meat chicken feed for improving development of gizzard and preparation method thereof, belong to meat chicken feed technical field, the preparation method includes: corn is smashed, corn is handled, premixing, mixing, crushing, granulation, mixing;The corn is handled, after being mixed with the smashed corn, chlorogenic acid, first portion of water, ultrasonic treatment, filtration, washing, vacuum freeze-drying of filter residue is mixed with garlic paste, stirring, standing, pass 2.5-3mm sieve, take the sieve upper, washing, vacuum freeze-drying;The corn starch, magnesium sulfate heptahydrate and water are mixed, stirred, the pH is adjusted to 4.5-5, the pretreated zeolite powder is added, stirred, placed, centrifuged, and the precipitate is obtained by vacuum freeze-drying.The meat chicken feed prepared by the application can improve the development of gizzard of meat chicken, and also can avoid the occurrence of mildew, improve the feed conversion rate and fecal quality of meat chicken.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of broiler feed, in particular to a broiler feed for improving the development of gizzard and a preparation method thereof. BACKGROUND

[0002] In broiler production, the crushing granularity of feed should be appropriate. When the granularity is too coarse, the larger granular feed is relatively slow when passing through the gizzard, which increases the difficulty of the digestive tract of the broiler to digest the feed, which is contrary to the nutritional requirements of the rapid growth of the broiler, thereby leading to slow weight gain of the broiler. When the granularity is too fine, dust material is prone to occur and cause feed waste, and the fine feed is prone to stay in the small intestine of the broiler for a long time due to the fast digestion speed, which leads to the atrophy of the gizzard, and the gizzard cannot play its physical digestion role. At the same time, a large amount of feed stays in the small intestine of the broiler for a long time, which is prone to cause the hypertrophy of the small intestine, and affects the digestion and absorption of the small intestine, and further leads to the decrease of feed conversion rate.

[0003] Zong L M. Effects of wheat grinding granularity on growth performance and intestinal health of broilers under different feed forms. Sichuan Agricultural University Master's Thesis. Published in June 2016 that the grinding granularity of feed has certain influence on the nutrient utilization rate of broilers, the development of digestive organs, immune function and intestinal mechanical barrier. In addition, the form of feed also has influence on broilers. Powdered feed is easy to cause feed grading, resulting in unbalanced nutrition of animals. Pelleted feed is based on powder, which is obtained by pelleting. Compared with powdered feed, pelleted feed has the advantages of convenient transportation, improved feed intake and reduced raw material grading. Moreover, the high temperature and high pressure environment in pelleting can kill pathogenic microorganisms in powder. Shi Z Y, Deng H C, Wang M, Guo Q S, Zheng J H, Si Tu J S, Xie G M, Yang X Y, Shen W J. Effects of corn grinding granularity on production performance and digestive tract indexes of broilers. China Animal Husbandry. Published in November 2017 that after corn is ground into corn particles, it is mixed with other feed raw materials to obtain granular feed. The grinding granularity of corn has influence on the gizzard weight index, ileum weight index, small intestine weight index, ileum length index and small intestine length index of broilers. Gou Zhongyong. Effects of feed shape and coarse ground corn kernels on broiler performance, body weight consistency, gizzard relative weight, fecal nitrogen, and broiler preference for feed particle size selection behavior. Guangdong Feed. Published in May 2016 that the feed intake of the broken feed group was significantly higher than that of the powder feed group, and the body weight of the broken feed group was significantly higher than that of the powder feed group. However, the above studies mainly focus on broilers in the growing period. Zhao D Y, Li J G, Qin Y C, Gu X, Yang J, Dong Y C, Xue Y, Li F H, Li Z, Li J. Effects of different combinations of corn and soybean meal grinding granularity on pellet processing quality and broiler growth performance. Animal Nutrition. Published in October 2019 that the digestive organs of young chickens have not developed completely and cannot break down larger particles, so the grinding granularity will affect the growth performance of young birds. Therefore, the test objects are mainly broiler finishers.

[0004] In summary, when preparing feed for broilers in the growing period, wheat or corn is often ground into wheat particles or corn particles, which are then mixed with other feed raw materials to obtain granular feed. However, Shi Z Y, Deng H C, Wang M, Guo Q S, Zheng J H, Si Tu J S, Xie G M, Yang X Y, Shen W J. Effects of corn grinding granularity on production performance and digestive tract indexes of broilers. China Animal Husbandry. Published in November 2017 also disclosed that if the corn particles are too large, it will result in poor quality of the pellet feed, increase the powder rate of the pellet feed and easily cause the problem of picky eating of broilers, further affecting the feed intake of broilers. However, the gizzard weight index decreases with the decrease of corn particles. Therefore, by controlling the granularity of corn particles, it is difficult to simultaneously improve the feed intake and gizzard weight index of broilers.

[0005] And well-developed gizzard is associated with enhanced gastric gland function, and well-developed gizzard and enhanced gastric gland function can cause broilers to produce a large number of positive responses, including reducing gizzard pH, increasing pepsin activity, increasing satiety, prolonging the retention time of feed particles in the foregut, and thus increasing the exposure of the digestive process and controlling the speed of chyme flowing into the lumen. Studies have shown that well-developed gizzard will cause chyme particles entering the small intestine to be more uniform and controllable, thereby reducing the possibility of starch overload in the lumen, and further, improving feed conversion. Therefore, a decrease in gizzard weight index will result in a decrease in feed conversion.

[0006] Fu Yanan, Mark Clements. Adding whole grains to broiler diets can improve feed utilization. Foreign Animal Husbandry (Pigs and Poultry) was published in October 2018. After obtaining granular feed by pelleting, whole grains are added as a separate ingredient to the granular feed. Granular feed can promote the appetite of broilers, but once ingested, it can be easily broken down, and the stimulation to the gizzard is small. Long-term use will reduce the digestive capacity of broilers, while whole grains can cause a greater response to the gizzard, increasing gizzard volume and efficiency. Therefore, the applicant tried to add large-sized corn particles (hereinafter referred to as large-sized corn) to the granular feed after obtaining the granular feed by pelleting, to obtain broiler feed that improves gizzard development, and to use it for broiler rearing during the growing period. However, the following problems were found:

[0007] First, Paya, Mark Clements. Adding whole grains to broiler diets can improve feed utilization. Foreign Animal Husbandry (Pigs and Poultry) was published in October 2018 that adding whole grain feeding can cause a larger reaction of gizzard, including gizzard volume and efficiency, but broilers will refuse to eat whole grains and dig them out of the trough, so this feeding method needs an adaptation period. Ganye Ning, Song Zifang, Wang Junliang, Li Jingge, Su Manchun, Sun Duanyang, Yang Tao, Gong Yuesheng. The influence of corn grinding particle size on the production performance and egg quality of Liuyang black-bone chickens in Shaanxi. Feed Research. Published in October 2014 that chickens have the habit of being picky, preferring to eat large particles of feed first, then smaller particles, and finally fine powder at the bottom of the trough. When the feed reaches a certain storage amount in the stomach, the chicken's satiety increases, and the feeding decreases or even stops. Because of the small particle size of fine powder feed, the satiety is weak, and the chicken's feeding amount increases accordingly. Under the same digestion conditions, the time required for gizzard to grind coarse powder feed is longer than that of fine powder feed, the flow time of feed in the gastrointestinal tract increases, the emptying rate decreases, and the chicken's hunger is not too strong in a short time, so the feeding desire is weak and the feeding amount is less. In summary, because the particle feed is prepared by high temperature to reduce the anti-nutritional factors in the feed and make the starch gelatinization produce a unique aroma, which can increase the appetite of broilers and improve the feeding amount of broilers, therefore, the applicant will appear picky behavior when using the prepared broiler feed to improve gizzard development to preferentially pecking granular feed, resulting in the improvement of gizzard development is not obvious.

[0008] Second, during the preparation of granular feed, it is easy to have incomplete drying and high moisture content. Chen Yunfeng. Analysis and solution of three typical mold phenomena of granular feed. Guangdong Feed. Published in January 2014 that there are three typical mold phenomena of granular feed, causes and solutions, while there are anti-nutritional factors in large corn particles, and they are prone to moisture problems. The applicant found that the feces of broilers were poor in quality after using the prepared broiler feed to improve gizzard development for broiler feeding in the grower period, specifically in loose feces, free water, and the applicant also found that the broiler feed was prone to mold problems when storing the prepared broiler feed to improve gizzard development.

[0009] For the above problems, through research, it is found that the commonly used solutions are: first, the particle size of the pellet feed and the large particle corn is controlled, and the particle size of the pellet feed and the particle size of the large particle corn is kept consistent; second, the pellet feed and the large particle corn are thoroughly dried; third, Xi Haibo. Application of complex enzyme preparation in broiler chickens. Northwest A&F University Master's Thesis. Published in June 2005, adding complex enzyme preparation to feed can resist multiple anti-nutritional factors, therefore, adding complex enzyme preparation to pellet feed can reduce the influence of anti-nutritional factors in large particle corn.

[0010] However, the applicant found that there are still the following problems after applying the above three solutions to the preparation of broiler feed for improving gizzard development at the same time: first, because the smell of the pellet feed and the large particle corn is different, there is still the problem of picky eating after being used for broiler feeding, further, which leads to the effect of improving gizzard development is not obvious; second, high temperature treatment is needed in pelleting, and the complex enzyme preparation has poor heat resistance, which will affect the activity of the complex enzyme preparation, further, which affects the use effect of the complex enzyme activity. SUMMARY

[0011] In view of the deficiencies in the prior art, the present application provides a kind of broiler feed for improving gizzard development and preparation method thereof, the prepared broiler feed can improve the gizzard development of broiler, and also can avoid the occurrence of mildew, improve the feed conversion rate and fecal quality of broiler.

[0012] To solve the above technical problems, the technical solutions adopted by the present application are as follows:

[0013] A preparation method of broiler feed for improving gizzard development, comprising: crushing corn, treating corn, premixing, mixing, crushing, pelleting, and mixing;

[0014] The crushed corn is crushed after the dry corn kernels are crushed, and the undersize material is taken, the undersize material is passed through a 2.5-3mm sieve, and the oversize material is taken, dried at 60-70℃ to constant weight, and the crushed corn is obtained;

[0015] In the crushed corn, the moisture content of the dry corn kernels is 12-15%;

[0016] The processing corn, taking the corn, chlorogenic acid, the first water mixture, ultrasonic treatment 30-40min, filtration, taking the filter residue, washing 2-3 times with water, the filter residue is dried at 60-70℃ to constant weight, get pretreated corn; the garlic cloves, the second water mixture, crushing pulp, pass through 30 mesh sieve, take the sieve, mix with pretreated corn, stirring treatment 30-40min, stirring speed in stirring treatment is 50-150rpm, stand 2-3h, pass through 2.5-3mm sieve, take the sieve, washing 2-3 times with water, vacuum freeze drying, get processing corn;

[0017] The weight ratio of the corn, chlorogenic acid, water in the processing corn is 1000-1100:5-6:6000-7000;

[0018] The weight ratio of the corn, garlic cloves, the second water is 1000-1100:25-27:2000-2500;

[0019] The mass content of chlorogenic acid in the chlorogenic acid is 70%;

[0020] The water content of the garlic cloves is 64%;

[0021] The ultrasonic power in the ultrasonic treatment is 500W, and the ultrasonic frequency is 25kHz;

[0022] The temperature in the vacuum freeze drying is-50℃ to-45℃, and the time is 24-26h;

[0023] The pre-mixing, zeolite powder, tannic acid, the first water mixture, stirring treatment 50-60min, stirring speed in stirring treatment is 50-150rpm, keep stirring speed unchanged, adjust pH to 8.5-9, stirring treatment 10-12h, centrifugal treatment 5-10min, centrifugal speed in centrifugal treatment is 3000-4000rpm, take the precipitate, mix with the second water, add phytase, compound enzyme, adjust pH to 6-6.5, stirring treatment at 34-37℃ for 4-5h, stirring speed in stirring treatment is 20-50rpm, centrifugal treatment 5-10min, centrifugal speed in centrifugal treatment is 3000-4000rpm, take the precipitate, vacuum freeze drying, get pre-mixed zeolite powder;

[0024] The weight ratio of the zeolite powder, tannic acid, the first water in the pre-mixing is 200-210:5-6:2000-2200;

[0025] The weight ratio of the zeolite powder, the second water, phytase, compound enzyme is 200-210:2000-2200:7-7.3:5.4-5.6;

[0026] The average particle size of the zeolite powder is 0.8mm;

[0027] The temperature in the vacuum freeze drying is -50℃ to -45℃, and the time is 30-35h;

[0028] The activity of the phytase is 9000-11000U / g;

[0029] The complex enzyme is composed of xylanase, beta-glucanase, cellulase, amylase, protease, mannanase, glucose oxidase, wherein the activity of xylanase is 7000-10000U / g, the activity of beta-glucanase is 9000-11000U / g, the activity of cellulase is 20-50U / g, the activity of amylase is 1000-3000U / g, the activity of protease is 900-1100U / g, the activity of mannanase is 1500-2500U / g, and the activity of glucose oxidase is 9000-11000U / g;

[0030] In the mixing, the corn starch, magnesium sulfate heptahydrate and water are mixed, and then stirred and treated at 25-30℃ for 50-60min, the stirring speed in the stirring and treating is 50-150rpm, the stirring speed is kept unchanged, the pH is adjusted to 4.5-5, the pretreated zeolite powder is added, and stirred and treated for 1-2h, and then placed and treated at 25-30℃ for 8-9h, centrifuged and treated for 5-10min, the centrifugal speed in the centrifugal treatment is 3000-4000rpm, the precipitate is taken, vacuum freeze dried to obtain the mixed zeolite powder;

[0031] In the mixing, the weight ratio of corn starch, magnesium sulfate heptahydrate and water is 6.2-7:15-16:900-1000;

[0032] In the mixing, the weight ratio of corn starch to the zeolite powder in the pre-mixing is 6.2-7:200-210;

[0033] The temperature in the vacuum freeze drying is -50℃ to -45℃, and the time is 30-35h;

[0034] The crushing, corn meal, soybean meal, flour, peanut meal, corn gluten meal, enzymatic feather meal, monosodium glutamate residue, bone meal, L-lysine sulfate, bone calcium hydrogen phosphate, sodium humate, methionine hydroxyl analog, DL-methionine, sodium chloride, L-threonine, sodium bicarbonate, choline chloride, L-arginine, L-valine are crushed and sieved through a 50-80 mesh sieve to obtain crushed corn meal, crushed soybean meal, crushed flour, crushed peanut meal, crushed corn gluten meal, crushed enzymatic feather meal, crushed monosodium glutamate residue, crushed bone meal, crushed L-lysine sulfate, crushed bone calcium hydrogen phosphate, crushed sodium humate, crushed methionine hydroxyl analog, crushed DL-methionine, crushed sodium chloride, crushed L-threonine, crushed sodium bicarbonate, crushed choline chloride, crushed L-arginine, and crushed L-valine;

[0035] The mass content of protein in the corn gluten meal is 60%;

[0036] The mass content of lysine in the L-lysine sulfate is 65%;

[0037] The mass content of sodium humate in the sodium humate is 65%;

[0038] The mass content of choline chloride in the choline chloride is 70%;

[0039] The granulation, by weight, the crushed corn meal, crushed soybean meal, crushed flour, crushed peanut meal, crushed corn gluten meal, crushed enzymatic feather meal, crushed monosodium glutamate residue, crushed bone meal, crushed L-lysine sulfate, crushed bone calcium hydrogen phosphate, crushed sodium humate, crushed methionine hydroxyl analog, crushed DL-methionine, crushed sodium chloride, crushed L-threonine, crushed sodium bicarbonate, crushed choline chloride, crushed L-arginine, crushed L-valine, duck oil, mixed zeolite powder, first premix, second premix are mixed and granulated, and dried to a water content of less than 12.5% to obtain a granular feed;

[0040] The weight ratio of the corn powder after crushing, the soybean meal after crushing, the flour after crushing, the peanut meal after crushing, the corn protein powder after crushing, the feather meal after crushing, the monosodium glutamate residue after crushing, the bone powder after crushing, the L-lysine sulfate after crushing, the calcium hydrogen phosphate after crushing, the sodium humate after crushing, the methionine hydroxyl analog after crushing, the DL-methionine after crushing, the sodium chloride after crushing, the L-threonine after crushing, the sodium bicarbonate after crushing, the choline chloride after crushing, the L-arginine after crushing, the L-valine after crushing, duck oil, mixed zeolite powder, the first premix, the second premix in the granulation is 24-25:24-24.5:8-8.3:4-4.2:3-3.2:2.5-2.6:1-1.1:1-1.2:0.7-0.75:0.3-0.33:0.2-0.21:0.2-0.21:0.16-0.17:0.15-0.16:0.14-0.15:0.13-0.14:0.08-0.09:0.07-0.08:0.04-0.05:8-8.4:1.2-1.3:0.1-0.11:0.2-0.22;

[0041] The first premix is chicken complex premix feed BV22 produced by Weifang Tianpuyangguang Feedstuff Technology Co., Ltd., the carrier is rice husk powder, the water content is less than 10%, the content of vitamin A acetate is 7000-10000 KIU / kg, the content of vitamin D3 is 2000-4400 KIU / kg, the content of DL-α-tocopherol acetate is ≥25000 mg / kg, the content of nitric acid ammonium sulfate is ≥2160 mg / kg, the content of menadione is ≥2160 mg / kg, the content of nicotinamide is ≥28800 mg / kg, the content of D-pantothenic acid is ≥8640 mg / kg, and the content of riboflavin is ≥6480 mg / kg;

[0042] The second premix is poultry trace element premix M-B2 produced by Weifang Tianpuyangguang Feedstuff Technology Co., Ltd., the carrier is stone powder, the water content is less than 10%, the content of copper is 1920-20000 mg / kg, the content of iron is 19600-200000 mg / kg, the content of manganese is 23200-100000 mg / kg, and the content of zinc is 23600-120000 mg / kg;

[0043] The diameter of the granular feed is 3-4 mm, and the length is 10-12 mm;

[0044] In the mixing, 24-27 parts of the treated corn and 78-82 parts of the granular feed are uniformly mixed to obtain the broiler chicken feed for improving the development of the gizzard.

[0045] The improved gizzard development broiler chicken feed prepared by the preparation method.

[0046] Compared with the prior art, the application has the following beneficial effects:

[0047] (1) The preparation method of the improved gizzard development broiler chicken feed adds treated corn and mixed zeolite powder during preparation, and in the preparation of the treated corn, the corn is first crushed and dried to obtain crushed corn, then the crushed corn is mixed with chlorogenic acid and ultrasonically treated, the chlorogenic acid is combined with the starch on the surface of the crushed corn under the action of ultrasonic, then mixed with garlic paste, the allicin in the garlic paste can be combined with the chlorogenic acid and corn starch to fix and include the allicin, the chlorogenic acid can improve the fixing and inclusion effect of the allicin and also has the effect of preventing mildew, and the treated corn with allicin on the surface is obtained, and the allicin can play the role of attracting food, thereby avoiding the picky eating of broiler chickens, and further, the effect of large particle corn on the improvement of gizzard development is played; in the preparation of the mixed zeolite powder, the zeolite powder is first mixed with tannic acid, the tannic acid is adsorbed on the surface of the zeolite powder to improve the combination of phytase and complex enzyme, then combined with corn starch and magnesium sulfate heptahydrate, the corn starch and tannic acid can be combined through intermolecular force, and the tannic acid can also complex the magnesium sulfate heptahydrate, the corn starch as a polysaccharide and the magnesium sulfate heptahydrate as an inorganic salt can both improve the thermal stability of phytase and complex enzyme, and further, the activity of phytase and complex enzyme in the prepared improved gizzard development broiler chicken feed is improved;

[0048] (2) The prepared broiler chicken feed can improve the gizzard development of broiler chickens, and for 21-day-old white broiler chickens, the average weight of gizzard can reach 28.5-28.7g after 15 days of continuous feeding;

[0049] (3) The prepared broiler chicken feed can avoid mildew;

[0050] (4) The prepared broiler chicken feed can improve the feed conversion rate of broiler chickens, and for 21-35-day-old white broiler chickens, the feed conversion ratio can be reduced to 1.32;

[0051] (4) The prepared broiler chicken feed can improve the feces quality of broiler chickens. DETAILED DESCRIPTION

[0052] In order to have a clearer understanding of the technical features, objects and effects of the application, the specific embodiments of the application are described below.

[0053] Example 1

[0054] The embodiment provides a preparation method of an improved gizzard development broiler chicken feed, which is specifically as follows:

[0055] 1. crushing corn: crushing the dry corn kernels and passing the crushed corn through a 7mm sieve to obtain undersize, passing the undersize through a 2.5mm sieve to obtain oversize, drying the oversize at 60℃ until constant weight to obtain crushed corn;

[0056] the water content of the dry corn kernels is 14%;

[0057] 2. treating corn: mixing 1000g of the crushed corn, 5g of chlorogenic acid and 6000g of water, ultrasonically treating the mixture for 30min, the ultrasonic power being 500W and the ultrasonic frequency being 25kHz, filtering, washing the residue twice with 3000g of water each time, drying the residue at 60℃ until constant weight to obtain pretreated corn; mixing 25g of garlic cloves and 2000g of water, crushing and beating the mixture to pass through a 30mesh sieve, mixing the undersize with all of the pretreated corn, stirring the mixture for 30min at a stirring speed of 100rpm, standing for 2h, passing the mixture through a 2.5mm sieve, washing the oversize twice with 3000g of water each time, vacuum freeze-drying the residue at-50℃ for 24h to obtain treated corn;

[0058] the mass content of chlorogenic acid in the chlorogenic acid is 70%;

[0059] the water content of the garlic cloves is 64%;

[0060] 3. premixing: mixing 200g of zeolite powder, 5g of tannic acid and 2000g of water, stirring the mixture for 50min at a stirring speed of 50rpm, adjusting the pH to 8.5, stirring the mixture for 10h, centrifuging the mixture for 5min at a centrifugal speed of 3000rpm, mixing the precipitate with 2000g of water, adding 7g of phytase and 5.4g of complex enzyme, adjusting the pH to 6, stirring the mixture at 34℃ for 4h at a stirring speed of 20rpm, centrifuging the mixture for 5min at a centrifugal speed of 3000rpm, vacuum freeze-drying the precipitate at-50℃ for 30h to obtain premixed zeolite powder;

[0061] the average particle size of the zeolite powder is 0.8mm;

[0062] the activity of the phytase is 10000U / g;

[0063] The complex enzyme is composed of xylanase, beta-glucanase, cellulase, amylase, protease, mannanase, glucose oxidase, wherein the activity of xylanase is 8000 U / g, the activity of beta-glucanase is 10000 U / g, the activity of cellulase is 30 U / g, the activity of amylase is 2000 U / g, the activity of protease is 1000 U / g, the activity of mannanase is 2000 U / g, and the activity of glucose oxidase is 10000 U / g;

[0064] 4. Mixing: 6.2 g of corn starch, 15 g of magnesium sulfate heptahydrate, 900 g of water are mixed, and then stirred at 25 DEG C for 50 min, the stirring speed in the stirring process is 100 rpm, the stirring speed is kept unchanged, the pH is adjusted to 4.5, all the pretreated zeolite powder obtained in step 3 is added, stirred for 1 h, and then placed at 25 DEG C for 8 h, centrifuged for 5 min, the centrifugal speed in the centrifugal process is 3000 rpm, the precipitate is taken, and vacuum freeze-dried at -50 DEG C for 30 h to obtain mixed zeolite powder;

[0065] 5. Grinding: corn powder, soybean meal, flour, peanut meal, corn protein powder, enzymatic feather meal, monosodium glutamate residue, bone meal, L-lysine sulfate, calcium hydrogen phosphate, sodium humate, methionine hydroxy analog, DL-methionine, sodium chloride, L-threonine, sodium bicarbonate, choline chloride, L-arginine, L-valine are ground and then passed through a 50-mesh sieve to obtain ground corn powder, ground soybean meal, ground flour, ground peanut meal, ground corn protein powder, ground enzymatic feather meal, ground monosodium glutamate residue, ground bone meal, ground L-lysine sulfate, ground calcium hydrogen phosphate, ground sodium humate, ground methionine hydroxy analog, ground DL-methionine, ground sodium chloride, ground L-threonine, ground sodium bicarbonate, ground choline chloride, ground L-arginine, and ground L-valine;

[0066] The mass content of protein in the corn protein powder is 60%;

[0067] The mass content of lysine in the L-lysine sulfate is 65%;

[0068] The mass content of sodium humate in the sodium humate is 65%;

[0069] The mass content of choline chloride in the choline chloride is 70%;

[0070] 6. Granulation: 24 parts of the ground corn flour, 24 parts of the ground soybean meal, 8 parts of the ground flour, 4 parts of the ground peanut meal, 3 parts of the ground corn protein powder, 2.5 parts of the ground enzymatic feather meal, 1 part of the ground monosodium glutamate residue, 1 part of the ground bone meal, 0.7 part of the ground L-lysine sulfate, 0.3 part of the ground calcium hydrogen phosphate, 0.2 part of the ground humic acid sodium, 0.2 part of the ground methionine hydroxy analogue, 0.16 part of the ground DL-methionine, 0.15 part of the ground sodium chloride, 0.14 part of the ground L-threonine, 0.13 part of the ground sodium bicarbonate, 0.08 part of the ground choline chloride, 0.07 part of the ground L-arginine, 0.04 part of the ground L-valine, 8 parts of duck oil, 1.2 parts of mixed zeolite powder, 0.1 part of the first premix, and 0.2 part of the second premix are mixed to prepare granules, which are dried to have a water content of 10.2%, to obtain the pellet feed with a diameter of 3 mm and a length of 10 mm;

[0071] The first premix is chicken compound premix feed BV22 produced by Weifang Tianpuyangguang Feedstuff Technology Co., Ltd., the carrier is rice husk powder, the water content is 9.1%, the content of vitamin A acetate is 10000 KIU / kg, the content of vitamin D3 is 4400 KIU / kg, the content of DL-α-tocopherol acetate is 26000 mg / kg, the content of ammonium nitrate sulfate is 2300 mg / kg, the content of menadione is 2300 mg / kg, the content of nicotinamide is 30000 mg / kg, the content of D-pantothenic acid is 8800 mg / kg, and the content of riboflavin is 6500 mg / kg;

[0072] The second premix is avian trace element premix feed M-B2 produced by Weifang Tianpuyangguang Feedstuff Technology Co., Ltd., the carrier is stone powder, the water content is 8.8%, the content of copper is 10000 mg / kg, the content of iron is 120000 mg / kg, the content of manganese is 80000 mg / kg, and the content of zinc is 90000 mg / kg;

[0073] 7. Mixing: 24 parts of the treated corn and 78 parts of the pellet feed are uniformly mixed to obtain the broiler chicken feed for improving the development of the gizzard.

[0074] The embodiment also provides a broiler chicken feed for improving the development of the gizzard, which is prepared by the preparation method.

[0075] Embodiment 2

[0076] The embodiment provides a preparation method of a broiler chicken feed for improving the development of the gizzard, which specifically comprises the following steps:

[0077] 1. crushing corn: crushing the dry corn kernels and passing the crushed corn through an 8 mm sieve to obtain undersize material, passing the undersize material through a 3 mm sieve to obtain oversize material, drying the oversize material at 70 ℃ until a constant weight is obtained, and obtaining the crushed corn;

[0078] the dry corn kernels have a water content of 14%;

[0079] 2. treating corn: mixing 1100 g of the crushed corn, 6 g of chlorogenic acid and 7000 g of water, ultrasonically treating the mixture for 40 min, the ultrasonic power being 500 W and the ultrasonic frequency being 25 kHz, filtering, washing the residue with water 3 times, each time using 4000 g of water, drying the residue at 70 ℃ until a constant weight is obtained, and obtaining pretreated corn; mixing 27 g of garlic cloves and 2500 g of water, crushing and beating the mixture to pass through a 30 mesh sieve to obtain undersize material, mixing the undersize material with all of the pretreated corn, stirring the mixture for 40 min, the stirring speed being 150 rpm, standing for 3 h, passing the mixture through a 3 mm sieve to obtain oversize material, washing the oversize material with water 3 times, each time using 4000 g of water, and vacuum freeze-drying the oversize material at -45 ℃ for 26 h, and obtaining treated corn;

[0080] the chlorogenic acid has a mass content of 70% in the chlorogenic acid;

[0081] the garlic cloves have a water content of 64%;

[0082] 3. premixing: mixing 210 g of zeolite powder, 6 g of tannic acid and 2200 g of water, stirring the mixture for 60 min, the stirring speed being 150 rpm, keeping the stirring speed unchanged, adjusting the pH to 9, stirring the mixture for 12 h, centrifuging the mixture for 10 min, the centrifugal speed being 4000 rpm, taking the precipitate, mixing the precipitate with 2200 g of water, adding 7.3 g of phytase and 5.6 g of complex enzyme, adjusting the pH to 6.5, stirring the mixture at 37 ℃ for 5 h, the stirring speed being 50 rpm, centrifuging the mixture for 10 min, the centrifugal speed being 4000 rpm, taking the precipitate, and vacuum freeze-drying the precipitate at -45 ℃ for 35 h, and obtaining the premixed zeolite powder;

[0083] the zeolite powder has an average particle size of 0.8 mm;

[0084] the phytase has an activity of 10000 U / g;

[0085] The complex enzyme is composed of xylanase, beta-glucanase, cellulase, amylase, protease, mannanase, glucose oxidase, wherein the activity of xylanase is 8000 U / g, the activity of beta-glucanase is 10000 U / g, the activity of cellulase is 30 U / g, the activity of amylase is 2000 U / g, the activity of protease is 1000 U / g, the activity of mannanase is 2000 U / g, and the activity of glucose oxidase is 10000 U / g;

[0086] 4. Mixing: 7g of corn starch, 16g of magnesium sulfate heptahydrate, 1000g of water are mixed, and then stirred at 30℃ for 60min, the stirring speed in the stirring process is 150rpm, the stirring speed is kept unchanged, the pH is adjusted to 5, all the pretreated zeolite powder obtained in step 3 is added, and stirred for 2h, and then placed at 30℃ for 9h, centrifuged for 10min, the centrifugal speed in the centrifugal process is 4000rpm, the precipitate is taken, and vacuum freeze-dried at-45℃ for 35h to obtain mixed zeolite powder;

[0087] 5. Grinding: corn powder, soybean meal, flour, peanut meal, corn protein powder, enzymatic feather meal, monosodium glutamate residue, bone meal, L-lysine sulfate, calcium hydrogen phosphate, sodium humate, methionine hydroxy analog, DL-methionine, sodium chloride, L-threonine, sodium bicarbonate, choline chloride, L-arginine, L-valine are ground and then passed through an 80-mesh sieve to obtain ground corn powder, ground soybean meal, ground flour, ground peanut meal, ground corn protein powder, ground enzymatic feather meal, ground monosodium glutamate residue, ground bone meal, ground L-lysine sulfate, ground calcium hydrogen phosphate, ground sodium humate, ground methionine hydroxy analog, ground DL-methionine, ground sodium chloride, ground L-threonine, ground sodium bicarbonate, ground choline chloride, ground L-arginine, and ground L-valine;

[0088] The mass content of protein in the corn protein powder is 60%;

[0089] The mass content of lysine in the L-lysine sulfate is 65%;

[0090] The mass content of sodium humate in the sodium humate is 65%;

[0091] The mass content of choline chloride in the choline chloride is 70%;

[0092] 6. Granulation: 25 parts of the crushed corn flour, 24.5 parts of the crushed soybean meal, 8.3 parts of the crushed wheat flour, 4.2 parts of the crushed peanut meal, 3.2 parts of the crushed corn protein powder, 2.6 parts of the crushed enzymatic feather meal, 1.1 parts of the crushed monosodium glutamate residue, 1.2 parts of the crushed bone meal, 0.75 parts of the crushed L-lysine sulfate, 0.33 parts of the crushed bone calcium hydrogen phosphate, 0.21 parts of the crushed humic acid sodium, 0.21 parts of the crushed methionine hydroxy analog, 0.17 parts of the crushed DL-methionine, 0.16 parts of the crushed sodium chloride, 0.15 parts of the crushed L-threonine, 0.14 parts of the crushed sodium bicarbonate, 0.09 parts of the crushed choline chloride, 0.08 parts of the crushed L-arginine, 0.05 parts of the crushed L-valine, 8.4 parts of duck oil, 1.3 parts of mixed zeolite powder, 0.11 parts of the first premix, and 0.22 parts of the second premix are mixed to prepare granules, which are dried to a moisture content of 11% to obtain the granular feed with a diameter of 4 mm and a length of 12 mm;

[0093] The first premix is chicken compound premix feed BV22 produced by Weifang Tianpuyangguang Feedstuff Technology Co., Ltd., the carrier is rice husk powder, the moisture content is 9.1%, the content of vitamin A acetate is 10000 KIU / kg, the content of vitamin D3 is 4400 KIU / kg, the content of DL-α-tocopherol acetate is 26000 mg / kg, the content of ammonium nitrate sulfate is 2300 mg / kg, the content of menadione is 2300 mg / kg, the content of nicotinamide is 30000 mg / kg, the content of D-pantothenic acid is 8800 mg / kg, and the content of riboflavin is 6500 mg / kg;

[0094] The second premix is avian trace element premix feed M-B2 produced by Weifang Tianpuyangguang Feedstuff Technology Co., Ltd., the carrier is stone powder, the moisture content is 8.8%, the content of copper is 10000 mg / kg, the content of iron is 120000 mg / kg, the content of manganese is 80000 mg / kg, and the content of zinc is 90000 mg / kg;

[0095] 7. Mixing: 27 parts of the treated corn and 82 parts of the granular feed are uniformly mixed to obtain the broiler feed for improving the development of the gizzard.

[0096] The embodiment also provides a broiler feed for improving the development of the gizzard, which is prepared by the preparation method.

[0097] Comparative Example 1

[0098] On the basis of the preparation method of the meat chicken feed for improving gizzard development in Example 1, Step 2 of treating corn was omitted, and the ground corn obtained in Step 1 was used in place of the treated corn in the original Step 7 of mixing.

[0099] The remaining operations were consistent with Example 1.

[0100] Comparative Example 2

[0101] On the basis of the preparation method of the meat chicken feed for improving gizzard development in Example 1, Step 4 of mixing was omitted, and the premixed zeolite powder obtained in Step 3 was used in place of the mixed zeolite powder in the original Step 6 of granulation.

[0102] The remaining operations were consistent with Example 1.

[0103] Comparative Example 3

[0104] On the basis of the preparation method of the meat chicken feed for improving gizzard development in Example 1, Step 3 of premixing was omitted, and a mixture of 200 g of zeolite powder and 7 g of phytase, 5.4 g of complex enzyme was used in place of all the pretreated zeolite powder obtained in Step 3 in the original Step 4 of mixing;

[0105] The average particle size of the zeolite powder was 0.8 mm;

[0106] The activity of the phytase was 10,000 U / g;

[0107] The complex enzyme was composed of xylanase, β-glucanase, cellulase, amylase, protease, mannanase, and glucose oxidase, wherein the activity of the xylanase was 8,000 U / g, the activity of the β-glucanase was 10,000 U / g, the activity of the cellulase was 30 U / g, the activity of the amylase was 2,000 U / g, the activity of the protease was 1,000 U / g, the activity of the mannanase was 2,000 U / g, and the activity of the glucose oxidase was 10,000 U / g.

[0108] The remaining operations were consistent with Example 1.

[0109] Test Example 1

[0110] The preparation method of the conventional meat chicken feed used in this test example was as follows:

[0111] The 48 parts of the pulverized corn powder, 24 parts of the pulverized soybean meal, 8 parts of the pulverized flour, 4 parts of the pulverized peanut meal, 3 parts of the pulverized corn protein powder, 2.5 parts of the pulverized enzymatic feather powder, 1 part of the pulverized monosodium glutamate residue, 1 part of the pulverized bone powder, 0.7 parts of the pulverized L-lysine sulfate, 0.3 parts of the pulverized calcium hydrogen phosphate, 0.2 parts of the pulverized sodium humate, 0.2 parts of the pulverized methionine hydroxyl analog, 0.16 parts of the pulverized DL-methionine, 0.15 parts of the pulverized sodium chloride, 0.14 parts of the pulverized L-threonine, 0.13 parts of the pulverized sodium bicarbonate, 0.08 parts of the pulverized choline chloride, 0.07 parts of the pulverized L-arginine, 0.04 parts of the pulverized L-valine, 8 parts of duck oil, 1.2 parts of zeolite powder, 0.2 parts of the first premix, and 0.2 parts of the second premix are mixed to obtain granular feed with a diameter of 3 mm and a length of 10 mm.

[0112] The pulverization method of the pulverized raw materials is the same as that in Example 1.

[0113] The mass content of protein in the corn protein powder is 60%;

[0114] The mass content of lysine in the L-lysine sulfate is 65%;

[0115] The mass content of sodium humate in the sodium humate is 65%;

[0116] The mass content of choline chloride in the choline chloride is 70%;

[0117] The average particle size of the zeolite powder is 0.8 mm.

[0118] The first premix is chicken compound premix feed BV22 produced by Weifang Tianpuyangguang Feedstuff Technology Co., Ltd., the carrier is rice husk powder, the water content is 9.1%, the content of vitamin A acetate is 10000 KIU / kg, the content of vitamin D3 is 4400 KIU / kg, the content of DL-α-tocopherol acetate is 26000 mg / kg, the content of ammonium sulfate nitrate is 2300 mg / kg, the content of menadione is 2300 mg / kg, the content of nicotinamide is 30000 mg / kg, the content of D-pantothenic acid is 8800 mg / kg, and the content of riboflavin is 6500 mg / kg.

[0119] The second premix is avian trace element premix feed M-B2 produced by Weifang Tianpuyangguang Feedstuff Technology Co., Ltd., the carrier is stone powder, the water content is 8.8%, the content of copper is 10000 mg / kg, the content of iron is 120000 mg / kg, the content of manganese is 80000 mg / kg, and the content of zinc is 90000 mg / kg.

[0120] The meat chicken feed for improving gizzard development of Examples 1-2 and Comparative Examples 1-3, and the conventional meat chicken feed were used for white-feathered broiler chicken breeding in the growing period, specifically, 3000 white-feathered broiler chickens of 21 days old were selected and bred in the same chicken house, and cage breeding was used, 10 white-feathered broiler chickens were bred in each cage; all the white-feathered broiler chickens were evenly divided into 6 groups, marked as groups 1-6, then the average weight of each white-feathered broiler chicken in groups 1-6 was calculated, and the calculation results were as follows:

[0121]

[0122] Then the meat chicken feed for improving gizzard development of Examples 1-2 and Comparative Examples 1-3 was used to feed groups 1-5 respectively, group 6 was used as a control, the conventional meat chicken feed was used to feed group 6, and free-feeding was used for groups 1-6, the initial temperature of the chicken house was controlled at 25°C, the temperature was reduced by 0.3°C every day during feeding, the relative humidity of the chicken house was controlled at 55%, and the white-feathered broiler chickens were continuously fed for 15 days, the feed intake and weight of each group of white-feathered broiler chickens were recorded every day, then the average feed intake and average weight of each group of white-feathered broiler chickens were calculated after continuous feeding for 15 days, and the calculation results were as follows:

[0123]

[0124] The average feed conversion ratio was calculated according to the average feed intake and average weight, and the calculation results were as follows:

[0125]

[0126] After the continuous feeding for 15 days, 20 white-feathered broiler chickens were randomly selected from groups 1-6, slaughtered and the gizzards were taken out and weighed, the average weight of the gizzards of each group was calculated, and the calculation results were as follows:

[0127]

[0128] During the continuous feeding period, the feed after feeding of the white-feathered broiler chickens in groups 1-5 was observed at 5 pm every day, and whether there was a picky eating problem was determined by the amount of corn kernels in the remaining feed, and finally whether there was a picky eating problem in the white-feathered broiler chickens in groups 1-5 was counted, and the counting results were as follows:

[0129]

[0130] At the same time, the feces of each group of white-feathered broiler chickens were scored every day during feeding, and the scores and corresponding scoring standards were as follows:

[0131]

[0132] The feces of each group of white-feathered broilers were collected and scored every day, and after continuous feeding for 15 days, the average feces score of each group of white-feathered broilers during feeding was calculated, and the calculation results were as follows:

[0133]

[0134] From the results of this test example, it can be seen that the broiler feed for improving gizzard development prepared in Examples 1 and 2 has the best comprehensive effect on reducing the feed conversion ratio, improving the weight gain of white-feathered broilers, avoiding picky eating of white-feathered broilers, and improving the feces quality of white-feathered broilers.

[0135] Test Example 2

[0136] 500g of each of the broiler feeds for improving gizzard development prepared in Examples 1-2 and Comparative Examples 1-3 were sealed in sealed bags, and after checking that the sealing was good, on June 15, 2025 to July 15, 2025, at 2 pm every day, the sealed broiler feeds were placed in the sun for 1h, then taken into the room, the temperature in the room was kept at 25℃, and the relative humidity was kept at 50%, then on July 16, 10 am, it was observed whether there was mold in the sealed broiler feeds, and the observation results were as follows:

[0137]

[0138] From the results of this test example, it can be seen that the mold prevention effect of the broiler feed for improving gizzard development prepared in Comparative Example 1 is poor.

Claims

1. A method of preparing a broiler feed for improved gizzard development, characterized in that, Comprise: crushed corn, treated corn, premixing, mixing, crushing, granulation, mixing; The crushed corn is obtained by crushing the dry corn kernels, passing the crushed corn through a 7-8 mm sieve, taking the undersize, passing the undersize through a 2.5-3 mm sieve, taking the oversize, drying, and obtaining the crushed corn. The treated corn is obtained by mixing the crushed corn, chlorogenic acid, and the first portion of water, ultrasonic treatment, filtration, taking the residue, washing, and drying to obtain the pretreated corn; mixing the garlic cloves and the second portion of water, crushing and pulping, passing through a 30 mesh sieve, taking the undersize, mixing with the pretreated corn, stirring, standing, passing through a 2.5-3 mm sieve, taking the oversize, washing, and vacuum freeze-drying to obtain the treated corn. The premixing is obtained by mixing the zeolite powder, tannic acid, and the first portion of water, stirring, adjusting the pH to 8.5-9, stirring, centrifuging, taking the precipitate, mixing with the second portion of water, adding phytase and complex enzymes, adjusting the pH to 6-6.5, stirring at 34-37°C, centrifuging, taking the precipitate, and vacuum freeze-drying to obtain the premixed zeolite powder. In the premixing, the complex enzymes consist of xylanase, β-glucanase, cellulase, amylase, protease, mannanase, and glucose oxidase, wherein the activity of xylanase is 7000-10000 U / g, the activity of β-glucanase is 9000-11000 U / g, the activity of cellulase is 20-50 U / g, the activity of amylase is 1000-3000 U / g, the activity of protease is 900-1100 U / g, the activity of mannanase is 1500-2500 U / g, and the activity of glucose oxidase is 9000-11000 U / g. The mixing is obtained by mixing corn starch, magnesium sulfate heptahydrate, and water, stirring at 25-30°C, adjusting the pH to 4.5-5, adding the pretreated zeolite powder, stirring, standing at 25-30°C, centrifuging, taking the precipitate, and vacuum freeze-drying to obtain the mixed zeolite powder. The crushing is obtained by crushing corn meal, soybean meal, flour, peanut meal, corn protein powder, enzymatic feather meal, monosodium glutamate residue, bone meal, L-lysine sulfate, calcium hydrogen phosphate, sodium humate, methionine hydroxy analog, DL-methionine, sodium chloride, L-threonine, sodium bicarbonate, choline chloride, L-arginine, and L-valine, and passing through a 50-80 mesh sieve. The mass content of protein in the corn protein powder is 60%. The mass content of lysine in the L-lysine sulfate is 65%. The mass content of sodium humate in the sodium humate is 65%. The mass content of choline chloride in the choline chloride is 70%. The granulation is obtained by mixing the crushed corn meal, soybean meal, flour, peanut meal, corn protein powder, enzymatic feather meal, monosodium glutamate residue, bone meal, L-lysine sulfate, calcium hydrogen phosphate, sodium humate, methionine hydroxy analog, DL-methionine, sodium chloride, L-threonine, sodium bicarbonate, choline chloride, L-arginine, and L-valine obtained in the crushing step with duck oil, mixed zeolite powder, first premix, and second premix, granulating, and drying to a water content of less than 12.5% to obtain the pellet feed. The mixture is mixed with 24-27 parts of the treated corn and 78-82 parts of the granular feed to obtain the chicken feed for improving the development of gizzard.

2. The method of preparing a broiler feed for improved gizzard development according to claim 1, characterized in that, The water content of the dry corn kernels in the crushed corn is 12-15%; The weight ratio of the crushed corn, the chlorogenic acid and the water in the treated corn is 1000-1100:5-6:6000-7000; The weight ratio of the crushed corn, the garlic clove and the second portion of water is 1000-1100:25-27:2000-2500; The mass content of the chlorogenic acid in the chlorogenic acid is 70%; The water content of the garlic clove is 64%; The ultrasonic power in the ultrasonic treatment is 500W, and the ultrasonic frequency is 25kHz; The temperature in the vacuum freeze drying is -50℃ to -45℃, and the time is 24-26h.

3. The method of preparing a broiler feed for improved gizzard development according to claim 1, characterized in that, The weight ratio of the zeolite powder, the tannic acid and the first portion of water in the premixing is 200-210:5-6:2000-2200; The weight ratio of the zeolite powder, the second portion of water, the phytase and the compound enzyme is 200-210:2000-2200:7-7.3:5.4-5.6; The average particle size of the zeolite powder is 0.8mm; The temperature in the vacuum freeze drying is -50℃ to -45℃, and the time is 30-35h.

4. The method of preparing a broiler feed for improved gizzard development according to claim 1, characterized in that, The activity of the phytase is 9000-11000U / g.

5. The method of preparing a broiler feed for improved gizzard development according to claim 1, wherein, The weight ratio of the corn starch, the magnesium sulfate heptahydrate and the water in the mixing is 6.2-7:15-16:900-1000; The weight ratio of the corn starch in the mixing to the zeolite powder in the premixing is 6.2-7:200-210; The temperature in the vacuum freeze drying is -50℃ to -45℃, and the time is 30-35h.

6. The method of preparing a broiler feed for improved gizzard development according to claim 1, wherein, The weight ratio of the crushed corn powder, the crushed soybean meal, the crushed flour, the crushed peanut meal, the crushed corn protein powder, the crushed enzymatic feather meal, the crushed monosodium glutamate residue, the crushed bone meal, the crushed L-lysine sulfate, the crushed bone phosphate, the crushed humic acid sodium, the crushed methionine hydroxy analog, the crushed DL-methionine, the crushed sodium chloride, the crushed L-threonine, the crushed sodium bicarbonate, the crushed choline chloride, the crushed L-arginine, the crushed L-valine, the duck oil, the mixed zeolite powder, the first premix, the second premix in the granulation is 24-25:24-24.5:8-8.3:4-4.2:3-3.2:2.5-2.6:1-1.1:1-1.2:0.7-0.75:0.3-0.33:0.2-0.21:0.2-0.21:0.16-0.17:0.15-0.16:0.14-0.15:0.13-0.14:0.08-0.09:0.07-0.08:0.04-0.05:8-8.4:1.2-1.3:0.1-0.11:0.2-0.22; The first premix is chicken compound premix feed BV22 produced by Weifang Tianpuyangguang Feedstuff Science and Technology Co., Ltd., the carrier is rice husk powder, the water content is less than 10%, the content of vitamin A acetate is 7000-10000 KIU / kg, the content of vitamin D3 is 2000-4400 KIU / kg, the content of DL-α-tocopherol acetate is greater than or equal to 25000 mg / kg, the content of nitric acid ammonium sulfate is greater than or equal to 2160 mg / kg, the content of methyl naphthoquinone is greater than or equal to 2160 mg / kg, the content of nicotinamide is greater than or equal to 28800 mg / kg, the content of D-pantothenic acid is greater than or equal to 8640 mg / kg, and the content of riboflavin is greater than or equal to 6480 mg / kg; The second premix is poultry trace element premix feed M-B2 produced by Weifang Tianpuyangguang Feedstuff Science and Technology Co., Ltd., the carrier is stone powder, the water content is less than 10%, the content of copper is 1920-20000 mg / kg, the content of iron is 19600-200000 mg / kg, the content of manganese is 23200-100000 mg / kg, and the content of zinc is 23600-120000 mg / kg; The diameter of the granular feed is 3-4 mm, and the length is 10-12 mm.

7. A broiler feed for improving gizzard development, which is prepared by the preparation method in any one of claims 1-6.

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