Compound feed for effectively improving sternum calcification of cherry valley hang white meat ducks

Abstract

The invention belongs to the technical field of poultry farming, and particularly relates to a compound feed for effectively improving sternum calcification of cherry valley hang white meat ducks. The feed contains a nutrient supplement, and every 1 part by weight of the nutrient supplement comprises 50 g of zinc methionine, 50 g of manganese methionine, 3000 IU of 25-hydroxyvitamin D3, 100 g of magnesium oxide, 300 g of blue kadsura and 500 g of eggshell powder. The functional nutrition enhancer can improve sternum calcification of cherry valley hang white meat ducks. In the invention, the conventional nutritional indexes and the required amount of trace elements and vitamins of the cherry valley-hang white meat ducks are researched, and the formed compound feed preparation technology is more scientific and more comprehensive in consideration; the functional nutrition enhancer is adopted, so that the sternum calcification degree of the meat ducks is effectively improved, the tibia strength is improved, the occurrence rate of leg diseases is improved, and the breeding benefits are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of poultry breeding, and in particular relates to a compound feed that effectively improves sternum calcification of Cherry Valley white meat ducks. Background Art

[0002] Modern breeding focuses mainly on the weight gain and feed conversion rate of meat ducks, but pays less attention to the bone health of meat ducks. This unbalanced selection leads to imbalance in the weight gain and bone growth calcification of meat ducks, making meat ducks under intensive breeding conditions prone to ascites, respiratory diseases, tibial dyschondroplasia (TD), etc. According to statistics, the incidence of leg diseases in fast-growing commercial meat ducks aged 1 to 21 days and 22 to 42 days is about 14% and 21% respectively, causing great economic losses and seriously restricting the healthy and efficient breeding of meat ducks.

[0003] The consumption of duck meat products in my country has obvious regional characteristics. For example, the northern region likes to consume "roast duck" and "grilled duck", which requires the meat ducks to deposit more body fat. However, the southwestern region likes to consume "braised duck" and "old duck soup", which requires the meat ducks to be raised for a long time, have a moderate weight, and have low body fat deposition.

[0004] Therefore, a new model has been formed in meat duck farming in the southwest region, namely the high-quality production model of large meat ducks, commonly known as the "Dangling White Duck" model. Its characteristics are mainly fast-growing large meat duck breeds. The breeding time is extended to 49 to 53 days of age. At the same time, the market weight is controlled at around 2.5kg. The sternum calcification is high when touched by hand, and the feed-to-weight ratio is 2.4 to 3.0. The meat quality is more suitable for meat duck product processing. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a functional nutritional enhancer, and prepares it into a compound feed, which is used in improving the calcification of the sternum of Cherry Valley White Meat Ducks, thereby meeting the nutritional needs of Cherry Valley White Meat Ducks while effectively improving the quality of the sternum, and the operation is simple and the effect is obvious.

[0006] In order to achieve the above invention object, the specific technical solution of the present invention is:

[0007] A functional nutrition enhancer is used in improving the sternum calcification of Cherry Valley white meat ducks, wherein each 1 weight portion of the nutrition enhancer comprises the following raw materials by weight: 50g of methionine zinc, 50g of methionine manganese, 3000IU of 25-hydroxyvitamin D3, 100g of magnesium oxide, 300g of Blue Knight, and 500g of eggshell powder; the functional nutrition enhancer can improve the sternum calcification of Cherry Valley white meat ducks.

[0008] A compound feed for improving breast bone calcification of Cherry Valley white meat ducks uses the above-mentioned nutritional enhancer; the compound feed contains the following raw materials in parts by weight: 30-50 parts of wheat, 10-20 parts of corn, 10-15 parts of full-fat rice bran, 8-15 parts of soybean meal, 4-8 parts of corn distillers grains (DDGS), 3-8 parts of cottonseed meal, 1-3 parts of hydrolyzed feather meal, 1-2 parts of soybean oil, 0.2-0.4 parts of salt, 0.5-2.0 parts of stone powder, 0.2-1.0 parts of calcium hydrogen phosphate, 0.05-0.12 parts of choline chloride, 0.5-1.0 parts of lysine, 0.05-0.2 parts of methionine, 0.05-0.2 parts of threonine, 0.08-0.12 parts of vitamin premix, 0.12-0.20 parts of trace element premix, 0.05-0.15 parts of functional nutritional enhancer, and 0.1-1.5 parts of bentonite.

[0009] Preferably, the compound feed contains the following raw materials in parts by weight: 32-48 parts of wheat, 12-18 parts of corn, 11-14 parts of full-fat rice bran, 9-14 parts of soybean meal, 5-8 parts of corn distillers grains (DDGS), 4-8 parts of cottonseed meal, 1-3 parts of hydrolyzed feather meal, 1-2 parts of soybean oil, 0.2-0.3 parts of salt, 0.8-2.0 parts of stone powder, 0.3-1.0 parts of calcium hydrogen phosphate, 0.06-0.12 parts of choline chloride, 0.6-1.0 parts of lysine, 0.06-0.2 parts of methionine, 0.06-0.2 parts of threonine, 0.08-0.12 parts of vitamin premix, 0.12-0.20 parts of trace element premix, 0.06-0.15 parts of functional nutrition enhancer, and 0.1-1.5 parts of bentonite.

[0010] More preferably, the compound feed contains the following raw materials in parts by weight: 44 parts of wheat, 15 parts of corn, 12 parts of whole fat rice bran, 10 parts of soybean meal, 6 parts of corn distillers grains (DDGS), 5 parts of cottonseed meal, 2.5 parts of hydrolyzed feather meal, 1.5 parts of soybean oil, 0.25 parts of salt, 1.5 parts of stone powder, 0.4 parts of calcium hydrogen phosphate, 0.1 parts of choline chloride, 0.9 parts of lysine, 0.17 parts of methionine, 0.15 parts of threonine, 0.10 parts of vitamin premix, 0.15 parts of trace element premix, 0.1 parts of functional nutrition enhancer, and 0.18 parts of bentonite.

[0011] Furthermore, each kilogram of the vitamin premix contains the following components in parts by weight: 4 million IU of vitamin A, 2 million IU of vitamin D3, 10 g of calcium pantothenate, 20 g of vitamin E, 10 g of vitamin B2, 1.5 g of vitamin B1, 3 g of vitamin B6, 2 g of vitamin K3, 50 g of niacin, 10 g of pantothenic acid, 0.01 g of vitamin B12, 0.1 g of biotin, 1 g of folic acid, 200 g of complex enzyme, 30 g of phytase, and 661.14 g of fine rice bran.

[0012] Furthermore, each kilogram of the trace element premix includes the following components in parts by weight: 150 g of ferrous sulfate monohydrate, 40 g of copper sulfate pentahydrate, 100 g of zinc sulfate monohydrate, 150 g of manganese sulfate monohydrate, 20 g of sodium selenite, 20 g of potassium iodide, and 520 g of stone powder.

[0013] Preferably, the method for preparing the above-mentioned compound feed for broiler ducks comprises the following steps:

[0014] (1) Preparation of functional sexual nutrition enhancer: weighing the raw materials of each component according to the proportion, ultrafinely grinding the eggshell powder, mixing them in a micro mixer, and setting aside;

[0015] (2) Preparing a vitamin premix: Weigh the raw materials of each component according to the proportion, mix the components in a mixer for 150-200 seconds, mix well, and set aside;

[0016] (3) Prepare the trace element premix. Weigh the raw materials of each component according to the proportion, mix the components in a mixer for 150-200 seconds, mix them evenly, and set aside;

[0017] (4) Preparation of compound feed for broiler ducks: weigh the raw materials of each component according to the capacity of the mixer, crush the raw materials in the component with a 2.0±1 mm crushing screen, and then mix the crushed raw materials with other raw materials in the mixer for 90-120 seconds. Mix them evenly and granulate them at a high temperature of 85-90°C. After cooling, package them into bags.

[0018] In functional nutrition enhancers, there are seven major nutrients for bone growth. These seven nutrients are seven important nutrients required for animal bone growth and development, and play an important role in bone health and strength. They mainly include calcium, phosphorus, magnesium, zinc, copper, manganese and vitamin D. The synergistic effect of trace elements on the metabolism of tissue cells ① Direct synergistic effect in the process of structure formation (in the formation of bone hydroxyapatite. Fe and Cu jointly participate in the synthesis of hemoglobin, in the molecular configuration of liver RNA, the interaction between Mn and Zn). ② Elements that participate in the active center of the enzyme at the same time (Fe and Mo in xanthine and aldehyde oxidase, Cu and Fe in cytochrome oxidase). ③ Trace elements are required to participate in the synthesis process during the activation and synthesis enhancement of the enzyme system. ④ Activate the function of endocrine organs and indirectly affect the metabolism of other macroelements or trace elements through hormones (I→thyroid hormone→anabolism enhancement→K and Mg remain in the body).

[0019] Zinc participates in the formation of bone salt, forms zinc-fluoride complex with fluorine, promotes apatite crystallization, affects 1,25-dihydroxyvitamin D3 and calcitonin levels, affects alkaline phosphatase, collagenase and sulfatase metabolism, and organic zinc with medium chelation strength has higher bioavailability than inorganic zinc. The possible reason is that organic zinc sources with medium chelation strength can resist competitive interference from other ions and directly reach the intestinal brush border, thereby showing higher bioavailability. The combined use of zinc sulfate monohydrate and zinc methionine can greatly improve the utilization of zinc in bones.

[0020] Manganese is one of the important components in bones. Organic manganese can significantly increase the activity of manganese superoxide dismutase (MnSOD) compared with inorganic manganese, reduce the symptoms of tendon slippage or osteoporosis, and the combined use of manganese sulfate monohydrate and manganese methionine can improve the utilization of manganese in bones.

[0021] The study found that Mg 2+ Bone metabolism can be affected through the following pathways. The first is to monitor the proliferation and differentiation of osteoblasts and osteoclasts by activating the phosphatidylinositol 3-kinase / protein kinase B signaling pathway; the second is the osteoprotegerin / nuclear factor-κB receptor activator RANKL / RANK ligand / osteoprotegerin OPG signaling pathway. The combination of RANKL and RANK can stimulate the differentiation of osteoclast precursors and increase osteoclast formation, while OPG can prevent it from binding. When Mg is deficient, the OPG content decreases, leading to an increase in osteoclasts and bone loss. The third is the transient receptor potential melastatin (TRPM). The TRPM7 channel can participate in regulating intracellular Mg. 2+ Balance, the addition of Mg is rarely used in poultry, and this study is the first case of adding it to broiler duck feed.

[0022] Vitamins, as important nutrients, have an important impact on bone metabolism. For example, vitamin K and vitamin E can downregulate RANKL expression and inhibit the proliferation and differentiation of osteoclasts. Vitamin D increases the absorption of Ca and P by the intestines and kidneys, and promotes bone formation and calcification. Adding 0.069 mg / kg 25-hydroxyvitamin D3 to the diet can significantly increase the fat-free weight, mineral deposition and density of the tibia of meat ducks. 25-hydroxyvitamin D3 can also significantly promote the mineral deposition and density of the sternum of meat ducks. Bone density and trabecular microstructure are closely related to bone strength, indicating that dietary 25-hydroxyvitamin D3 increases the strength of meat duck bones while improving the trabecular structure and increasing bone density. 25-hydroxyvitamin D3 is rarely used in meat duck feed due to its high price.

[0023] Osteoclasts are the only cells in mammalian bone tissue responsible for bone resorption. +To dissolve organic matter and hydroxyapatite in the bone matrix, highly active V-ATPase and cathepsin K can be used as important indicators to measure bone absorption enhancement. Highly absorbed calcium can inhibit the proliferation and differentiation of osteoclasts by inhibiting the nuclear factor-κB receptor activator RANKL / RANK ligand / osteoprotegerin OPG pathway, thereby reducing the bone absorption process of the tibia and sternum of meat ducks and improving the quality of the tibia and sternum. Eggshell powder contains about 32% organic calcium, which is more conducive to absorption.

[0024] Blue Knight is rich in glucose oxidase, Clostridium butyricum, and Enterococcus faecalis. It can regulate the balance of intestinal flora, promote the growth and reproduction of beneficial intestinal bacteria, inhibit the proliferation of harmful bacteria, effectively prevent the occurrence of intestinal diseases such as diarrhea, dysentery, bacterial enteritis, and enhance the body's immunity and disease resistance; maintain the normal morphology of intestinal mucosal epithelial cells, provide energy for intestinal epithelial cells, promote digestion and absorption of the small intestine, and repair damaged intestinal mucosa; decompose anti-nutritional factors, protect intestinal health, improve feed conversion rate, and promote growth.

[0025] In the formula feed for improving breast bone calcification of Cherry Valley white meat ducks, the added soybean meal, cottonseed meal, and hydrolyzed feather meal are rich in arginine, cysteine, and dietary fiber, which have the effects of balancing amino acids and improving intestinal health. Appropriately increasing the whole fat rice bran and soybean oil in the formula feed can help promote the absorption efficiency of fat-soluble vitamins.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] (1) The present invention studies the conventional nutritional indicators, trace elements and vitamin requirements of Cherry Valley White Meat Duck, and the resulting compound feed preparation technology is more scientific and more comprehensive;

[0028] (ii) The use of a complete compound feed is more conducive to the promotion and use of the invention;

[0029] (III) The use of zinc sulfate monohydrate in combination with zinc methionine, manganese sulfate monohydrate and manganese methionine improves the utilization rate of calcium, phosphorus and minerals;

[0030] (IV) Use functional nutrition enhancers to effectively improve the calcification of breastbone, tibia strength, and the incidence of leg diseases in meat ducks, thereby improving breeding efficiency;

[0031] (V) Blue Knight is used to improve the digestive flora balance and feed conversion efficiency of Cherry Valley White Duck, making the product more targeted;

[0032] (VI) The compound feed of the present invention not only meets the nutritional needs of Cherry Valley hanging white meat ducks, but also adds functional nutrition enhancers to improve the sternal bone density and calcification quality, so that the sternal calcification ratio of 49-53 days is increased to 80-85%, and the strength of the tibia of meat ducks is increased to improve the incidence of leg diseases in meat ducks. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of sternal calcification ratio of part of the embodiment of the present invention. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with embodiments, which are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in the field without creative work are all within the scope of protection of the present invention.

[0035] The raw materials used in this application are all commercially available products.

[0036] Example 1

[0037] A functional nutrition enhancer comprises the following raw materials per 1 weight portion: 50g of methionine zinc, 50g of methionine manganese, 3000IU of 25-hydroxyvitamin D3, 100g of magnesium oxide, 300g of blue knight and 500g of eggshell powder.

[0038] Embodiment 2:

[0039] A compound feed for improving breast bone calcification of Cherry Valley white meat ducks, using the functional nutrition enhancer in Example 1; the compound feed contains the following raw materials in parts by weight:

[0040] 44 parts of wheat, 15 parts of corn, 12 parts of full-fat rice bran, 10 parts of soybean meal, 6 parts of corn distillers grains (DDGS), 5 parts of cottonseed meal, 2.5 parts of hydrolyzed feather meal, 1.5 parts of soybean oil, 0.25 parts of salt, 1.5 parts of stone powder, 0.4 parts of calcium hydrogen phosphate, 0.1 parts of choline chloride, 0.9 parts of lysine, 0.17 parts of methionine, 0.15 parts of threonine, 0.10 parts of vitamin premix, 0.15 parts of trace element premix, 0.18 parts of bentonite, and 0.1 parts of functional nutrition enhancer.

[0041] The vitamin premix contains the following components by weight per kilogram:

[0042] Vitamin A 4 million IU, vitamin D3 2 million IU, calcium pantothenate 10g, vitamin E 20g, vitamin B2 10g, vitamin B1 1.5g, vitamin B6 3g, vitamin K3 2g, niacin 50g, pantothenic acid 10g, vitamin B12 0.01g, biotin 0.1, folic acid 1g, complex enzyme 200g, phytase 30g, fine rice bran 661.14g.

[0043] Each kilogram of trace element premix includes the following components by weight: 150g of ferrous sulfate monohydrate, 40g of copper sulfate pentahydrate, 100g of zinc sulfate monohydrate, 150g of manganese sulfate monohydrate, 20g of sodium selenite, 20g of potassium iodide, and 520g of stone powder.

[0044] The preparation method of the above-mentioned compound feed comprises the following steps:

[0045] (1) Preparation of functional nutrition enhancer: weigh the raw materials of each component according to the above proportion, grind the eggshell powder into ultrafine powder, mix them evenly in a micro mixer, and set aside;

[0046] (2) Preparation of vitamin premix: weigh the raw materials of each component according to the above proportion, mix the components in a mixer for 150 seconds, mix well, and set aside;

[0047] (3) Prepare the trace element premix. Weigh the raw materials of each component according to the above proportions, mix the components in a mixer for 150 seconds until they are evenly mixed and set aside;

[0048] (4) Preparation of compound feed for broiler ducks: weigh the raw materials of each component according to the capacity of the mixer, crush the raw materials in the component with a 2.0 mm crushing screen, and then mix the crushed raw materials with other raw materials in the mixer for 90 seconds. Mix them evenly and granulate them at 85-90°C. After cooling, pack them into bags.

[0049] Physical and chemical indicators

[0050] According to laboratory testing, the nutritional indicators of the compound feed of the present invention can reach: crude protein 18.5%, crude fat 5.52%, crude fiber 3.21%, crude ash 6.8%, meat duck metabolic energy 2900Kcal / Kg, calcium 0.70%, available phosphorus 0.3%, lysine 1.15%, and methionine 0.45%.

[0051] Embodiment 3:

[0052] A compound feed for improving breastbone calcification of Cherry Valley white meat ducks, comprising the following raw materials in parts by weight:

[0053] 44 parts of wheat, 15 parts of corn, 12 parts of full-fat rice bran, 10 parts of soybean meal, 6 parts of corn distillers grains (DDGS), 5 parts of cottonseed meal, 2.5 parts of hydrolyzed feather meal, 1.5 parts of soybean oil, 0.25 parts of salt, 1.5 parts of stone powder, 0.4 parts of calcium hydrogen phosphate, 0.1 parts of choline chloride, 0.9 parts of lysine, 0.17 parts of methionine, 0.15 parts of threonine, 0.10 parts of vitamin premix, 0.15 parts of trace element premix, 0 parts of functional nutrition enhancer, and 0.28 parts of bentonite.

[0054] The content and preparation method of each component of the vitamin premix, trace element premix, and functional nutrition enhancer are the same as those in Example 2.

[0055] Embodiment 4:

[0056] A compound feed for improving breastbone calcification of Cherry Valley white meat ducks, comprising the following raw materials in parts by weight:

[0057] 44 parts of wheat, 15 parts of corn, 12 parts of full-fat rice bran, 10 parts of soybean meal, 6 parts of corn distillers grains (DDGS), 5 parts of cottonseed meal, 2.5 parts of hydrolyzed feather meal, 1.5 parts of soybean oil, 0.25 parts of salt, 1.5 parts of stone powder, 0.4 parts of calcium hydrogen phosphate, 0.1 parts of choline chloride, 0.9 parts of lysine, 0.17 parts of methionine, 0.15 parts of threonine, 0.10 parts of vitamin premix, 0.15 parts of trace element premix, 0.07 parts of functional nutrition enhancer (using the proportion in Example 1), and 0.21 parts of bentonite.

[0058] The content and preparation method of each component of the vitamin premix, trace element premix, and functional nutrition enhancer are the same as those in Example 2.

[0059] Embodiment 5:

[0060] A compound feed for improving breastbone calcification of Cherry Valley white meat ducks, comprising the following raw materials in parts by weight:

[0061] 44 parts of wheat, 15 parts of corn, 12 parts of full-fat rice bran, 10 parts of soybean meal, 6 parts of corn distillers grains (DDGS), 5 parts of cottonseed meal, 2.5 parts of hydrolyzed feather meal, 1.5 parts of soybean oil, 0.25 parts of salt, 1.5 parts of stone powder, 0.4 parts of calcium hydrogen phosphate, 0.1 parts of choline chloride, 0.9 parts of lysine, 0.17 parts of methionine, 0.15 parts of threonine, 0.10 parts of vitamin premix, 0.15 parts of trace element premix, 0.05 parts of functional nutrition enhancer (using the proportion in Example 1), and 0.23 parts of bentonite.

[0062] The content and preparation method of each component of the vitamin premix, trace element premix, and functional nutrition enhancer are the same as those in Example 2.

[0063] Physical and chemical indicators

[0064] According to laboratory testing, the nutritional indicators of the compound feed of the present invention can reach: crude protein 18.5%, crude fat 5.52%, crude fiber 3.21%, crude ash 6.8%, meat duck metabolic energy 2900Kcal / Kg, calcium 0.68%, available phosphorus 0.3%, lysine 1.15%, and methionine 0.45%.

[0065] test:

[0066] An empirical test on compound feed for Cherry Valley white meat ducks was carried out at the Tieqi Lisi XX test field.

[0067] (1) Experimental grouping: 4,000 12-day-old Cherry Valley female ducks were randomly divided into 5 treatment groups, each with 4 replicates and 200 ducks per replicate (800 ducks / treatment). The ducks were allowed to eat freely from 12 to 35 days of age, and restricted feeding was implemented from 36 days of age. The feed intake during the feeding age and restricted feeding stage was 250 g / duck / day from 36 to 46 days of age, 125 g / duck on 47 days of age, and 100 g / duck on 48 days of age. Among them:

[0068] Control group 1 was fed a diet without functional nutrient enhancers, and the nutrient enhancers were replaced with bentonite in equal proportions, and the diet was implemented for 3 days;

[0069] Control group 2 was a functional nutrition enhancer in which Blue Knight was not added, but was replaced with bentonite in equal proportion, and a 4-day diet was implemented;

[0070] Control group 3 was a functional nutrition enhancer in which eggshell powder was not added, but was replaced with bentonite in equal proportion, and a 5-day diet was implemented;

[0071] Experimental group 1 was fed with the Cherry Valley duck formula feed of the present invention and implemented with the 2-day diet;

[0072] Test group 2 was Cherry Valley duck feed sold by HD, a major marketer. Its main ingredients were as follows:

[0073] Corn, wheat, soybean meal, corn alcohol grains, cottonseed meal, salt, stone powder, calcium hydrogen phosphate, choline chloride, lysine, methionine, vitamin premix, trace element premix, enzyme preparation.

[0074] After laboratory testing, the nutritional indicators of the meat duck feed for test group 2 can reach: crude protein 18.2%, crude fat 5.05%, crude fiber 3.82%, crude ash 7.32%, meat duck metabolizable energy 2900Kcal / Kg, calcium 0.75%, available phosphorus 0.3%, lysine 1.13%, and methionine 0.45%.

[0075] (2) Feeding and management: The experiment adopted online feeding, with 200 ducks in each pen. From the trial period to the release of ducks, the duck houses adopted free drinking water, free food from 12 days to 35 days of age, and restricted food from 36 days of age.

[0076] Strictly follow the Cherry Valley duck feeding procedures and record the number of duck deaths every day. Record the temperature of the duck house at 6:00, 10:00, 15:00, and 20:00 every day. Record the daily feed input and total feed consumption.

[0077] The animals were slaughtered on the 49th day of the experiment, with 20 in each treatment. The sternum ash, Ca and P content were determined according to the method of Zhang Liying et al. (2007). Bone calcification was evaluated by ash, Ca, P and density. Bone density: the volume (V, cm) was measured by the water displacement method. 3 ), combined with the fat-free weight of the bone (W, g), the bone density (g / cm) can be calculated with reference to Kaantee (1983) 3 )=bone fat-free weight (g) /

[0078] Bone volume (cm 3 )

[0079] Sternum calcification ratio: according to Figure 1 , use vernier calipers to measure the sternum length (Lstenum) and sternal cartilage length (Lcartilage), then:

[0080] Sternum calcification ratio (Calcified ratio) = (Lstenum-Lcartilage) / Lstenum;

[0081] Unit conversion: Vitamin A: 1IU (international unit) = 0.3ug (microgram); Vitamin D: 1IU (international unit) = 0.025ug (microgram).

[0082] (3) Data statistical analysis: After simple processing of the original data in Excel, SPSS software was used for variance analysis and significance test. The significance level was P < 0.05, and the extremely significant level was P < 0.01.

[0083] The statistical analysis of the test data of each group is shown in the following table:

[0084] Table 1 Effects of different treatments on the production performance of Cherry Valley White Meat Ducks

[0085]

[0086] Table 2 Effects of different treatments on sternum calcification of Cherry Valley white meat ducks

[0087]

[0088] The use of the feed of the present invention can refer to the Cherry Valley duck breeding regulations provided by Cherry Valley Breeding Company, and feed as needed and feed freely during the breeding process of Cherry Valley white ducks. The formula of the present invention is very convenient to use and is conducive to large-scale promotion.

[0089] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. A person skilled in the art will understand that many changes, modifications and even equivalent changes may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. Application of a functional nutrition enhancer in improving sternum calcification of Cherry Valley white meat duck, characterized in that: Each portion by weight of the nutritional enhancer includes the following raw materials: 50 g of methionine zinc, 50 g of methionine manganese, 3000 IU of 25-hydroxyvitamin D3, 100 g of magnesium oxide, 300 g of Blue Knight, and 500 g of eggshell powder; the functional nutritional enhancer can improve the calcification of the breast bone of Cherry Valley white meat duck.

2. A compound feed for improving breastbone calcification of Cherry Valley white meat ducks, characterized in that The compound feed uses a nutritional enhancer: the compound feed contains the following raw materials in parts by weight: 30-50 parts of wheat, 10-20 parts of corn, 10-15 parts of full-fat rice bran, 8-15 parts of soybean meal, 4-8 parts of corn alcohol grains, 3-8 parts of cottonseed meal, 1-3 parts of hydrolyzed feather meal, 1-2 parts of soybean oil, 0.2-0.4 parts of salt, 0.5-2.0 parts of stone powder, 0.2-1.0 parts of calcium hydrogen phosphate, 0.05-0.12 parts of choline chloride, 0.5-1.0 parts of lysine, 0.05-0.2 parts of methionine, 0.05-0.2 parts of threonine, 0.08-0.12 parts of vitamin premix, 0.12-0.20 parts of trace element premix, 0.05-0.15 parts of functional nutritional enhancer, and 0.1-1.5 parts of bentonite.

3. A compound feed for improving breastbone calcification of Cherry Valley white meat ducks as claimed in claim 2, characterized in that: The compound feed contains the following raw materials in parts by weight: 32-48 parts of wheat, 12-18 parts of corn, 11-14 parts of full-fat rice bran, 9-14 parts of soybean meal, 5-8 parts of corn alcohol grains, 4-8 parts of cottonseed meal, 1-3 parts of hydrolyzed feather meal, 1-2 parts of soybean oil, 0.2-0.3 parts of salt, 0.8-2.0 parts of stone powder, 0.3-1.0 parts of calcium hydrogen phosphate, 0.06-0.12 parts of choline chloride, 0.6-1.0 parts of lysine, 0.06-0.2 parts of methionine, 0.06-0.2 parts of threonine, 0.08-0.12 parts of vitamin premix, 0.12-0.20 parts of trace element premix, 0.06-0.15 parts of functional nutrition enhancer and 0.1-1.5 parts of bentonite.

4. A compound feed for improving breastbone calcification of Cherry Valley white meat ducks as claimed in claim 2, characterized in that: The compound feed contains the following raw materials in parts by weight: 44 parts of wheat, 15 parts of corn, 12 parts of full-fat rice bran, 10 parts of soybean meal, 6 parts of corn alcohol grains, 5 parts of cottonseed meal, 2.5 parts of hydrolyzed feather meal, 1.5 parts of soybean oil, 0.25 parts of salt, 1.5 parts of stone powder, 0.4 parts of calcium hydrogen phosphate, 0.1 parts of choline chloride, 0.9 parts of lysine, 0.17 parts of methionine, 0.15 parts of threonine, 0.10 parts of vitamin premix, 0.15 parts of trace element premix, 0.1 parts of functional nutrition enhancer and 0.18 parts of bentonite.

5. A compound feed for improving breastbone calcification of Cherry Valley white meat ducks as described in any one of claims 2 to 4, characterized in that: Each kilogram of the vitamin premix contains the following components in parts by weight: 4 million IU of vitamin A, 2 million IU of vitamin D3, 10 g of calcium pantothenate, 20 g of vitamin E, 10 g of vitamin B2, 1.5 g of vitamin B1, 3 g of vitamin B6, 32 g of vitamin K, 50 g of niacin, 10 g of pantothenic acid, 0.01 g of vitamin B12, 0.1 g of biotin, 1 g of folic acid, 200 g of complex enzyme, 30 g of phytase, and 661.14 g of fine rice bran.

6. A compound feed for improving breastbone calcification of Cherry Valley white meat ducks as described in any one of claims 2 to 4, characterized in that: Each kilogram of the trace element premix comprises the following components in parts by weight: 150 g of ferrous sulfate monohydrate, 40 g of copper sulfate pentahydrate, 100 g of zinc sulfate monohydrate, 150 g of manganese sulfate monohydrate, 20 g of sodium selenite, 20 g of potassium iodide, and 520 g of stone powder.

7. A method for preparing a compound feed for improving breastbone calcification of Cherry Valley white meat ducks as described in any one of claims 2 to 4, characterized in that The following steps are involved: (1) Preparation of functional sexual nutrition enhancer: weighing the raw materials of each component according to the proportion, ultrafinely grinding the eggshell powder, mixing them in a micro mixer, and setting aside; (2) preparing a vitamin premix: weighing the raw materials of each component according to the proportion, mixing the components in a mixer, and mixing them evenly for later use; (3) Preparing a trace element premix. Weigh the raw materials of each component according to the proportion, mix the components in a mixer, and mix them evenly for later use; (4) Preparation of compound feed for broiler ducks: weigh the raw materials of each component according to the capacity of the mixer, crush the raw materials in the component with a crushing screen, and then mix the crushed raw materials with other raw materials in the mixer. Mix them evenly and granulate them at high temperature. After cooling, pack them into bags.

8. The method for preparing a compound feed for improving breastbone calcification of Cherry Valley white meat ducks as claimed in claim 7, characterized in that: The mixing time in step 2) is 150-200 seconds.

9. The method for preparing a compound feed for improving breastbone calcification of Cherry Valley white meat ducks as claimed in claim 7, characterized in that: The mixing time in step 3) is 150-200 seconds.

10. The method for preparing a compound feed for improving breastbone calcification of Cherry Valley white meat ducks as claimed in claim 7, characterized in that: In step 4), the particles are crushed to 2.0±1 mm; the mixing time is 90-120 seconds; and the temperature of high temperature granulation is 85-90°C.

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