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Feed additive for improving intestinal health index of broiler chickens and application of feed additive

A feed additive and intestinal health technology, which is applied in the field of poultry farming to improve the survival rate and production performance of broilers and improve the health status.

Active Publication Date: 2022-05-03
北京挑战生物技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the intestinal health problems of broiler chickens after banning antibiotics, the present invention provides a green, safe and antibiotic-free new feed additive for improving the intestinal health index of broiler chickens and its application

Method used

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  • Feed additive for improving intestinal health index of broiler chickens and application of feed additive
  • Feed additive for improving intestinal health index of broiler chickens and application of feed additive
  • Feed additive for improving intestinal health index of broiler chickens and application of feed additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1 Bacterial enzyme combination used in broiler breeding

[0029] 1. Experimental animals

[0030] Select 432 1-day-old AA broilers (Aibai Yijia broilers) and randomly divide them into 2 treatments according to male and female and body weight, each treatment has 6 repetitions, each repetition has 36 chickens, and the test period is 42 days. Feeding is done in two phases.

[0031] 2. Diets and experimental design

[0032] Before the start of the experiment, collect the feed raw materials used, analyze their conventional nutrient content, and make the feed formula based on the actual test results. The content of other nutrients in each raw material refers to "China Feed Composition and Nutritional Value Table 2017", and the nutritional requirements refer to NRC (1994) Breeding Standards for Broilers. The control group was fed with basal rations; the test group added 50g / t N-acyl homoserine lactonase+50g / t Enterococcus faecalis to the basal ration, and the experi...

Embodiment 2

[0062] Example 2 Effects of Different Bacterial Enzyme Combinations on Broiler Performance

[0063] 1. Experimental animals

[0064] A total of 432 1-day-old AA broiler chickens were selected and randomly divided into 6 treatments according to male and female and body weight. Each treatment had 6 replicates, and each replicate had 12 chickens. The experimental period was 42 days, and the feeding was carried out in two stages.

[0065] 2. Diets and experimental design

[0066] Similar to Example 1, before the start of the test, the feed materials used were collected, their conventional nutrient content was analyzed, and the feed formula was prepared based on the actual test results. The content of other nutrients in each raw material was referred to in the "Chinese Feed Components and Nutritional Value Table 2017". Nutritional requirements The amount refers to the NRC (1994) Broiler Feeding Standard. The control group was fed with basal rations; each test group added differen...

Embodiment 3

[0080] Example 3 Effects of different combinations of lactic acid bacteria and N-acyl homoserine lactonase on broiler performance

[0081] 1. Experimental animals

[0082] 360 1-day-old AA broilers were selected and randomly divided into 5 treatments according to male and female and body weight. Each treatment had 6 replicates, and each replicate had 12 chickens. The test period was 42 days, and the feeding was carried out in two stages.

[0083] 2. Diets and experimental design

[0084] Similar to Example 1, before the start of the test, the feed materials used were collected, their conventional nutrient content was analyzed, and the feed formula was prepared based on the actual test results. The content of other nutrients in each raw material was referred to in the "Chinese Feed Components and Nutritional Value Table 2017". Nutritional requirements The amount refers to the NRC (1994) Broiler Feeding Standard. The control group was fed with basal diet; each test group added...

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Abstract

The invention provides a novel feed additive for improving the intestinal health index of broiler chickens and application thereof, the active ingredients of the feed additive are N-acyl homoserine lactonase and lactic acid bacteria, and the N-acyl homoserine lactonase and lactic acid bacteria can synergistically inhibit the reproduction of harmful bacteria. Broiler chicken breeding tests show that N-acyl homoserine lactonase and lactic acid bacteria have a synergistic effect, and the additive can improve the intestinal villus height of broiler chickens, reduce the overall inflammatory response of intestinal tracts, obviously reduce intestinal bleeding points of the broiler chickens and improve the health condition of the intestinal tracts, so that the survival rate and production performance of the broiler chickens are improved.

Description

technical field [0001] The invention relates to the technical field of poultry breeding, in particular to a feed additive for improving the intestinal health index of broilers and an application thereof. Background technique [0002] The intestine is an important place for the digestion and absorption of nutrients in broilers, and it is also the "largest" immune organ of the body. Poultry farming suffers huge economic losses due to intestinal health problems every year. For a long time, adding antibiotics to feed is the main preventive strategy to prevent this problem from happening. However, due to public health problems such as bacterial resistance and antibiotic residues, The state prohibits the addition of growth-promoting antibiotics in feed. Since the feed was banned, intestinal health problems in broilers have increased, such as slow feeding, poor uniformity, loose feed, increased feed-to-meat ratio, secondary infection of other diseases, etc. Therefore, maintaining ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/75A23K20/189A23K10/18A23K20/163A23K10/37A23K20/28
CPCA23K50/75A23K20/189A23K10/18A23K20/163A23K10/37A23K20/28A23V2400/123A23V2400/113A23V2400/413Y02P60/87
Inventor 宋全芳孙敏李爽华跃飞彭翔李阳张广民蔡辉益
Owner 北京挑战生物技术有限公司
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