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Method for relieving heat stress of black-bone chicken

A heat stress, silky chicken technology, applied in the application, animal feed, animal feed and other directions, to achieve the effects of enhancing production performance, improving economic benefits, and enhancing heat stress resistance

Inactive Publication Date: 2013-07-24
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no relevant report on the application of resveratrol in compound feed as an anti-heat stress additive for chickens

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Test material: Resveratrol was donated by Hunan Natural Products Engineering Technology Research Center, extracted from Polygonum cuspidatum, content ≥ 90%. There are many methods for extracting resveratrol in Hunan Natural Products Engineering Technology Research Center, such as ultrasonic method, which can use 78% ethanol, soak for 12 hours at a solid-liquid ratio of 13:1 or 14:1, and ultrasonically extract twice at 42°C , extracted for 40 minutes each time; filtered and then separated by XAD7HP macroporous resin column (the pH value of the upper column solution is 4.5, and the adsorption temperature is 12°C), and resveratrol with different purities can be obtained.

[0019] Experimental design: 90 Xuefeng silkies (28 days old, hen) were randomly divided into 3 groups, 30 birds in each group. The basic formula of the diet was prepared according to the nutritional level recommended by NRC (1994) (Table 1); the anti-heat stress additives were resveratrol (content ≥ 90%)...

Embodiment 2

[0033]Experimental materials: Resveratrol was purchased from Changsha Feituo Plant Products Company, the net content of resveratrol was ≥98%, and it was extracted from Polygonum cuspidatum.

[0034] Experimental design: 180 Xuefeng black-bone chickens (28 days old, hen) were randomly selected and randomly divided into 3 groups, 60 birds in each group. The basic formula of the diet was prepared according to the nutritional level recommended by NRC (1994) (Table 1); the anti-heat stress additives were resveratrol (content ≥ 98%), buckwheat protein powder (protein > 55%; moisture < 8%) 1. Corn starch (content ≥ 98%) is composed of 200:250:550 in parts by mass. The control group was fed with basal rations; the ratio of anti-heat stress additives and basal rations in test group 1 was 1:1000 by weight; in test group 2, the ratio was 1.5:1000, mixed directly and set aside. The high temperature treatment conditions are simulated high temperature in summer. The temperature of the chic...

Embodiment 3

[0045] Experimental materials: Resveratrol was purchased from Changsha Feituo Plant Products Company, the net content of resveratrol was ≥98%, and it was extracted from Polygonum cuspidatum.

[0046] Experimental design: 240 Xuefeng black-bone chickens (42 days old, hens) were randomly selected and randomly divided into 4 groups, 60 birds in each group. The basic formula of the diet was prepared according to the nutritional level recommended by NRC (1994) (Table 1); the anti-heat stress additives were resveratrol (content ≥ 98%), buckwheat protein powder (protein > 55%; moisture < 8%) and cornstarch (content ≥ 98%) are composed of 300:200:500 in parts by mass. The control group was fed with basal rations; in test 1, the ratio of anti-heat stress additives to basal rations was 0.5:1000 by weight; in test 2, 1:1000; in test 3, 2:1000, directly Blend and set aside. The high temperature treatment conditions are simulated high temperature in summer. The temperature of the chicken...

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Abstract

The invention discloses a method for relieving heat stress of black-bone chicken. According to the method, a heat stress resistant feed additive which is obtained by orderly mixing resveratrol, buckwheat protein powder and corn starch in order according to the proportion of mass parts being (100-300):(300-200):(600-500) is added into a feed; and the application method is as follows: the feed additive and a chicken compound feed or a diet are mixed according to the proportion of mass parts being (0.5-2):1000. According to the method, production efficiency of the black-bone chicken in the heat stress stage can be improved, food intake amount, daily gain and dressing percentage are increased, and immunocompetence and antioxidant function are enhanced so as to improve the heat stress resistance capacity of the black-bone chicken. The resveratrol can be used as an additive for promoting growth and resisting heat stress, and simultaneously the method is rich in raw material resources, controllable in production cost, strong in market demand, and suitable for industrialized development and production.

Description

technical field [0001] The invention relates to a method for relieving heat stress of silky chickens. Using plant polyphenols anti-heat stress feed additives under high-temperature feeding conditions can promote the growth of silky chickens and improve the production performance of silky chickens. Background technique [0002] Due to the emission of greenhouse gases, the rise of global temperature, high temperature in summer and high-density intensive feeding seriously affect the production performance of poultry, resulting in growth and metabolic disorders, immunosuppression, decreased meat quality, and increased mortality rate. Especially in poultry farming in tropical and subtropical regions, heat stress occurs frequently, which brings serious economic losses to animal husbandry. Therefore, there is an urgent need for a natural, safe and effective physiological regulator to be used in heat-stressed chicken diets to alleviate the body damage caused by heat stress and enhan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/18A23K1/16A23K1/14A01K67/02
Inventor 贺建华刘丽莉谢红兵李江长
Owner HUNAN AGRICULTURAL UNIV
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