Low-protein type fattening pig feed and application

Abstract

The invention aims to disclose the low-protein type fattening pig feed which can effectively solve the technical problem that the growth performance is reduced due to insufficient protein supply of the existing low-protein daily ration to the fattening pigs by adopting the specific daily ration component proportion and combining with the specific nutritional index level, and the growth performance of the fattening pigs is improved by constructing a unique daily ration system. The feed effectively reduces the breeding cost, improves the profit margin of breeding enterprises, relieves the problem of protein resource shortage, can effectively reduce nitrogen emission and ammonia emission, improves the environmental quality of pig farms, has important significance for realizing sustainable development and environmental protection targets, and has wide application prospects. The application of the low-protein daily ration technology provided by the invention in the pig industry has wide development prospects and important strategic significance.

Description

Technical Field

[0001] The present invention belongs to the technical field of animal feed, and specifically relates to a fattening pig feed, and more specifically to the technical field of feed for improving the production performance of fattening pigs and its application. Background Art

[0002] In pig farming, feed costs account for about 60%-70% of the breeding costs. Protein accounts for about 30% of feed ingredients. At present, my country cannot be self-sufficient in protein feed raw materials. In recent years, the sharp decline in soybean production has caused tight supply in the international market, which has directly increased feed costs and breeding costs. The lack of protein feed raw materials has restricted the development of my country's animal husbandry. In order to alleviate this situation, the application of low-protein diets is imminent. Under the current feeding model, part of the dietary protein ingested by pigs can be absorbed and utilized by the body, and the remaining protein is excreted in the form of nitrogen with feces and urine, resulting in a large amount of protein resources Waste. Low-protein diets can not only reduce costs and increase efficiency, but also reduce the pressure of feces and sewage on environmental pollution. The use of low-protein diets has become an inevitable trend in modern large-scale pig production.

[0003] Li Yonghui et al. studied the effect of feeding pigs a 12% low-protein diet containing serine and glycine on the oxidative stress of the longissimus dorsi muscle after slaughter in "The Effect of the Ratio of Serine and Glycine in Low-Protein Diets on the Oxidative Stress State of the Longissimus Dorsi Muscle in Fattening Pigs". However, in daily feeding management, how to further reduce the crude protein content of the diet while providing a suitable diet formula to maintain the good growth performance of pigs and reduce feeding costs. However, the reduction in protein content in the diet often brings certain negative effects to animals, such as reduced growth performance due to insufficient protein supply. Therefore, how to reduce the negative impact while giving full play to the advantages of low-protein diet feeding technology has become an urgent problem to be solved in the practical application of low-protein diets in growth. Summary of the invention

[0004] In view of the technical problem that the growth performance of fattening pigs is reduced due to insufficient protein supply in low-protein diets, the present invention aims to provide a low-protein feed for fattening pigs. Through reasonable proportioning, a reasonable supply of essential amino acids and non-essential amino acids can be achieved, the amino acid balance under the low-protein diet mode can be effectively balanced and the growth needs of fattening pigs can be met, the growth performance can be improved, and a compensatory effect on the growth performance of fattening pigs can be produced. The advantages of low-protein diet feeding technology can be effectively utilized, the waste of protein resources can be avoided, and the economic benefits of breeding can be improved.

[0005] To achieve this technical purpose, the present invention adopts the following technical solutions: The invention provides a low-protein fattening pig feed. The low-protein fattening pig feed comprises a basic diet and an amino acid additive in parts by weight, wherein the basic diet comprises the following ingredients: 79945 parts to 82245 parts of first-grade corn, 8500 parts to 3500 parts of coarse wheat bran, 5900 parts to 9100 parts of soybean hulls, 780 parts to 830 parts of calcium hydrogen phosphate, 950 parts to 910 parts of stone powder 60 mesh, 500 parts to 510 parts of lysine (98%), 500 parts of lysine (70%), 250 parts to 260 parts of methionine (99%), 360 parts to 370 parts of threonine, 110 parts to 120 parts of tryptophan, 270 parts to 290 parts of valine, 210 parts to 220 parts of isoleucine, 400 parts of sodium chloride, 1213T 200 parts, TK4307 medium and large pig multi-mineral 100 parts, sweetener 25 parts, amino acid additives include glycine 78 parts, serine 38 parts.

[0006] Preferably, the low-protein fattening pig feed, wherein the basic daily diet further comprises the following ingredients in terms of mass: 1000 parts of wheat germ and less than or equal to 420 parts of glycine.

[0007] Preferably, the crude protein content in the low-protein fattening pig feed is 10%.

[0008] Preferably, the net energy of the low-protein fattening pig feed is 2350 Kcal / kg.

[0009] Preferably, the ratio of glycine to serine added to the basal diet is 2:1.

[0010] Preferably, the ratio of standard ileum digestible isoleucine to lysine in the low-protein fattening pig feed is 0.50; the ratio of standard ileum digestible cystine + methionine (SID Cys + SID Met) to lysine (SID Lys) is 0.58.

[0011] Preferably, the ratio of standard ileum digestible threonine to lysine in the low-protein fattening pig feed is 0.65.

[0012] Preferably, the ratio of standard ileal digestible tryptophan to lysine in the low-protein fattening pig feed is 0.18.

[0013] Preferably, the ratio of standard ileum digestible valine to lysine in the low-protein fattening pig feed is 0.67.

[0014] Furthermore, the present invention also provides application of the above-mentioned low-protein fattening pig feed in promoting the growth of fattening pigs.

[0015] By implementing the technical solution of the present invention, the following beneficial effects can be achieved: 1. The low-protein fattening pig feed provided by the present application can effectively solve the technical problem of reduced growth performance of fattening pigs caused by insufficient protein supply in existing low-protein diets, and break through the technical bias of only focusing on supplementing lysine, tryptophan, threonine and methionine and essential amino acids such as isoleucine, leucine and valine in fattening pig diets to maintain the growth needs of fattening pigs. A unique dietary system that maintains the growth needs of fattening pigs by adding non-essential amino acids in a specific proportion is constructed, which effectively reduces breeding costs, increases the profit margins of breeding enterprises, alleviates the problem of protein resource shortage, and can effectively reduce nitrogen emissions and ammonia emissions, improve the environmental quality of pig farms, and is of great significance for achieving sustainable development and environmental protection goals. The application of the low-protein diet technology provided by the present application in the pig farming industry has broad development prospects and important strategic significance.

[0016] 2. Through the application of a low-protein fattening pig feed provided by the present application, the daily feed intake data was measured in the growth performance measurement test and the results showed that the daily feed intake of the control group was 2719.64g / N, the daily feed intake of the test group 1 was 2798.40g / N, and the daily feed intake of the test group 2 was 2717.46g / N. Compared with the control group, the test group 1 increased by 80.76g / N, and the test group 2 decreased by 2.18g / N; by testing the daily weight gain index, the daily weight gain of the control group was 957.69g / N, the daily weight gain of the test group 1 was 860.95g / N, and the daily weight gain of the test group 2 was 961.54g / N. Compared with the control group, the test group 1 decreased by 96.74g / N, and the test group 2 increased by 3.85g / N.

[0017] 3. Through the application of a low-protein fattening pig feed provided by the present application, the feed-to-meat ratio data was measured in the growth performance measurement test and the results showed that the feed-to-meat ratio of the control group was 2.840, the feed-to-meat ratio of the test group 1 was 3.25, and the feed-to-meat ratio of the test group 2 was 2.83. Compared with the control group, the feed-to-meat ratio of the test group 1 increased by 0.41, and the feed-to-meat ratio of the test group 2 decreased by 0.01, which effectively increased the profit in the breeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 Shown is the test flow chart. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In this embodiment, corn grade one, wheat mixture, DDGS, coarse wheat bran, wheat germ, soybean meal 43%, corn germ meal, soybean hull, calcium hydrogen phosphate, stone powder 60 mesh, lysine 98%, lysine purity of 98%, lysine 70%, lysine purity of 70%, methionine 99%, methionine purity of 99%, threonine, tryptophan, valine, isoleucine were purchased from Xinjiang Tiankang Huitong Agriculture Co., Ltd.; glycine and sodium chloride were purchased from Hebei Changhao Biotechnology Co., Ltd., 1213T was purchased from Henan Hongzhan Biotechnology Co., Ltd.; TK4307 Zhongdazhu Duokuang was purchased from Xi'an Xinglang Biotechnology Co., Ltd.; sweeteners were purchased from Chengdu Dadi Hank Biotechnology Co., Ltd.

[0021] Unless otherwise specified in the following embodiments, the technical means used are conventional means well known to those skilled in the art. Example 1: A low-protein fattening pig feed and its application The invention provides a low-protein fattening pig feed. The low-protein fattening pig feed comprises a basic diet and an amino acid additive in parts by weight, wherein the basic diet comprises the following ingredients: 79945 parts to 82245 parts of first-grade corn, 8500 parts to 3500 parts of coarse wheat bran, 5900 parts to 9100 parts of soybean hulls, 780 parts to 830 parts of calcium hydrogen phosphate, 950 parts to 910 parts of stone powder 60 mesh, 500 parts to 510 parts of lysine (98%), 500 parts of lysine (70%), 250 parts to 260 parts of methionine (99%), 360 parts to 370 parts of threonine, 110 parts to 120 parts of tryptophan, 270 parts to 290 parts of valine, 210 parts to 220 parts of isoleucine, 400 parts of sodium chloride, 1213T 200 parts, TK4307 medium and large pig multi-mineral 100 parts, sweetener 25 parts as the basic diet, amino acid additives include glycine 78 parts, serine 38 parts.

[0022] The basic daily diet also includes the following ingredients by mass: 1,000 parts of wheat germ and less than or equal to 420 parts of glycine.

[0023] The crude protein content of the low-protein fattening pig feed is 10%.

[0024] The net energy of the low-protein fattening pig feed is 2350 Kcal / kg.

[0025] The ratio of glycine to serine added to the basal diet was 2:1.

[0026] The ratio of standard ileum digestible isoleucine (SID Ile) to lysine in the low-protein fattening pig feed is 0.50; the ratio of standard ileum digestible cystine+methionine (SID Cys+SID Met) to lysine (SID Lys) is 0.58.

[0027] The ratio of standard ileum digestible threonine (SID Thr) to lysine in the low-protein fattening pig feed is 0.65.

[0028] The ratio of standard ileal digestible tryptophan (SID Trp) to lysine in the low-protein fattening pig feed is 0.18.

[0029] Preferably, the ratio of standard ileal digestible valine (SID Val) to lysine in the low-protein fattening pig feed is 0.67.

[0030] Example 2: A low-protein fattening pig feed and its application The invention provides a low-protein fattening pig feed. The low-protein fattening pig feed comprises the following ingredients by weight: 79945 parts of first-grade corn, 8500 parts of coarse wheat bran, 1000 parts of wheat germ, 5900 parts of soybean hulls, 780 parts of calcium hydrogen phosphate, 950 parts of stone powder 60 mesh, 500 parts of lysine (98%), 500 parts of lysine (70%), 250 parts of methionine (99%), 360 parts of threonine, 110 parts of tryptophan, 270 parts of valine, 210 parts of isoleucine, 400 parts of sodium chloride, 200 parts of 1213T, 100 parts of TK4307 medium and large pig multi-mineral, and 25 parts of sweetener as a basic diet.

[0031] Example 3: A low-protein fattening pig feed and its application The invention provides a low-protein fattening pig feed. The low-protein fattening pig feed comprises the following ingredients by weight: 82245 parts of first-grade corn, 3500 parts of coarse wheat bran, 9100 parts of soybean hulls, 830 parts of calcium hydrogen phosphate, 910 parts of stone powder 60 mesh, 510 parts of lysine (98%), 500 parts of lysine (70%), 260 parts of methionine (99%), 370 parts of threonine, 120 parts of tryptophan, 290 parts of valine, 220 parts of isoleucine, 420 parts of glycine, 400 parts of sodium chloride, 200 parts of 1213T, 100 parts of TK4307 medium and large pig multi-mineral, and 25 parts of a sweetener. 78 parts of glycine and 38 parts of serine are added to the basic diet.

[0032] Example 4: A low-protein fattening pig feed and its application The invention provides a low-protein fattening pig feed. The low-protein fattening pig feed comprises the following ingredients by weight: 81095 parts of first-grade corn, 6000 parts of coarse wheat bran, 7500 parts of soybean hulls, 805 parts of calcium hydrogen phosphate, 930 parts of stone powder 60 mesh, 505 parts of lysine (98%), 500 parts of lysine (70%), 255 parts of methionine (99%), 365 parts of threonine, 115 parts of tryptophan, 280 parts of valine, 215 parts of isoleucine, 400 parts of sodium chloride, 200 parts of 1213T, 100 parts of TK4307 medium and large pig multi-mineral, and 25 parts of a sweetener. 78 parts of glycine and 38 parts of serine are added to the basic diet.

[0033] Example 5: Feeding effect comparison Based on the feeding cost and comprehensive considerations, the records in Examples 1 to 3 are selected to compare the feeding effects of the low-protein fattening pig feed provided in this application, as shown below: 1. Experimental groups and diets The control group GS852-1N, crude protein (CP) content is 14%, the experimental group GS852-1S1, CP10%, the experimental group GS852-1S2, CP10%, glycine (Gly) and serine (Ser) are supplemented to make Gly:Ser = 2:1, each treatment has two replicates, each replicate has 65 heads. See the attached experimental flow chart Figure 1 shown.

[0034] Table 1: Diet ratio of each group

[0035] 2. Test methods (1) Experimental time and location: The feeding experiment will be carried out from April 15 / 16, 2024 to May 11 / 12, 2024 at Xukang Self-feeding Base-Shengkang.

[0036] Experimental animal husbandry and management: (2) Weight grouping: Weigh each pig and select fattening pigs within the 60kg±10% weight range.

[0037] (3) Feeding and management: 1) Experimental pigs can be transferred within the same group, but not between groups or in and out of the group.

[0038] 2) Observe the feeding, health and activity of the experimental pigs every day. Mark any sick pigs found, and track and record the onset date, duration, treatment plan, and recovery status. Pigs that do not show improvement after 3 days of treatment will be removed from the evidence pen and weighed and recorded.

[0039] 3) Dead pigs, weighing and recording the date.

[0040] 4) The feeding and management of the experimental pigs is based on the actual feeding and management of the pig farm, managed by a dedicated person, with artificial feeding and free feeding.

[0041] (4) Measurement indicators and evaluation methods 1) Growth performance Weigh the initial weight, final weight, and weight of dead pigs one by one. When weighing the initial weight and final weight, pay attention to the empty feed trough. Weigh the initial weight and final weight when there is no feed in the feed trough of the experimental pig group. (After feeding each stage, weighing is required to enter the next stage of the test) ADG / (g / d) Daily weight gain = (final weight - initial weight) ÷ number of days Record the feeding amount of each group every day, weigh them, record the feed intake of the day, and fix the time point. Add feed when the feed in each pen is about to be eaten, which is conducive to the statistical difference in feed intake.

[0042] ADFI / (g / d) feed intake = total feed intake ÷ number of days ÷ sample size F / G feed to meat ratio = ADFI ÷ ADG ⑤Test results 3. Test results Through the measurement, the relevant indicators are shown in Table 3: Table 3: Comparison of feeding effects

[0043] The results of measuring daily feed intake data showed that the daily feed intake of the control group was 2719.64g / N, the daily feed intake of the experimental group 1 was 2798.40g / N, and the daily feed intake of the experimental group 2 was 2717.46g / N. Compared with the control group, the daily feed intake of the experimental group 1 increased by 80.76g / N, and the daily feed intake of the experimental group 2 decreased by 2.18g / N.

[0044] The results of daily weight gain data showed that the daily weight gain of the control group was 957.69g / N, the daily weight gain of the test group 1 was 860.95g / N, and the daily weight gain of the test group 2 was 961.54g / N. Compared with the control group, the daily weight gain of the test group 1 decreased by 96.74g / N, and the daily weight gain of the test group 2 increased by 3.85g / N.

[0045] The results of measuring the feed-to-meat ratio data showed that the feed-to-meat ratio of the control group was 2.840, the feed-to-meat ratio of the experimental group 1 was 3.25, and the feed-to-meat ratio of the experimental group 2 was 2.83. Compared with the control group, the feed-to-meat ratio of the experimental group 1 increased by 0.41, and the feed-to-meat ratio of the experimental group 2 decreased by 0.01.

[0046] It can be seen that the low-protein fattening pig feed provided by this application has a good feeding effect. When the crude protein in the diet drops to 10%, the growth needs of pigs (60-80kg) cannot be met by balancing the essential amino acids alone, which hinders the growth of pigs. Here, by adopting the diet formula provided by the application itself, it not only has a compensatory effect on the growth performance of pigs while maintaining the daily feed intake as little as possible, but also can effectively improve the feed-to-meat ratio index.

[0047] The above implementation modes are only for illustrating the technical concept and features of the present invention in a specific scenario. The purpose is to enable people who need this technology to understand the content of the present invention and implement it. It does not limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A low-protein fattening pig feed, characterized in that: The low-protein fattening pig feed comprises a basic diet and an amino acid additive in terms of weight, wherein the basic diet comprises the following ingredients: 79945-82245 parts of first-grade corn, 8500-3500 parts of coarse wheat bran, 5900-9100 parts of soybean hulls, 780-830 parts of calcium hydrogen phosphate, 950-910 parts of stone powder 60 mesh, 500-510 parts of lysine (98%), 500 parts of lysine (70%), 250-260 parts of methionine (99%), 360-370 parts of threonine, 110-120 parts of tryptophan, 270-290 parts of valine, 210-220 parts of isoleucine, 400 parts of sodium chloride, 1213T 200 parts, TK4307 medium and large pig multi-mineral 100 parts, sweetener 25 parts; amino acid additives include glycine 78 parts and serine 38 parts.

2. A low-protein fattening pig feed as claimed in claim 1, characterized in that: The basic diet in the low-protein fattening pig feed may also contain, by weight, less than or equal to 1000 parts of wheat germ or less than or equal to 420 parts of glycine.

3. A low-protein fattening pig feed as claimed in claim 1, characterized in that: The crude protein content of the low-protein fattening pig feed is 10%.

4. A low-protein fattening pig feed as claimed in claim 1, characterized in that: The net energy of the low-protein fattening pig feed is 2350 Kcal / kg.

5. The low-protein fattening pig feed according to claim 1, characterized in that: The ratio of glycine to serine added to the basal diet was 2:

1.

6. A low-protein fattening pig feed as claimed in claim 1, characterized in that: The ratio of standard ileum digestible isoleucine to lysine in the low-protein fattening pig feed is 0.50; the ratio of standard ileum digestible cystine+methionine (SID Cys+SID Met) to lysine (SID Lys) is 0.

58.

7. The low-protein fattening pig feed according to claim 1, characterized in that: The ratio of standard ileum digestible threonine to lysine in the low-protein fattening pig feed is 0.

65.

8. The low-protein feed for fattening pigs according to claim 1, characterized in that: The standard ileum digestible tryptophan to lysine ratio in the low-protein fattening pig feed is 0.

18.

9. The low-protein feed for fattening pigs according to claim 1, characterized in that: The ratio of standard ileum digestible valine to lysine in the low-protein fattening pig feed is 0.

67.

10. Use of the low-protein fattening pig feed according to any one of claims 1 to 9 in promoting the growth of fattening pigs.

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