研究论文 RESEARCH PAPER

高粱型饲粮添加乳化剂和脂肪酶对良凤花肉鸡生长性能和屠宰性能的影响

  • 丁鹏 ,
  • 郭阳浩 ,
  • 袁雅婷 ,
  • 何业春 ,
  • 宋泽和 ,
  • 张海涵 ,
  • 贺喜
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  • 1. 湖南农业大学动物科学技术学院, 饲料安全与高效利用教育部工程研究中心, 优质畜禽产品生产省部共建协同创新中心, 长沙 410128;
    2. 益阳市农业科学院, 益阳 413000;
    3. 湖南湘佳牧业股份有限公司, 常德 415300
丁鹏(1993—),男,湖南常德人,博士研究生,研究方向为畜牧学。E-mail:shkdingpeng@163.com

收稿日期: 2022-03-13

  网络出版日期: 2022-10-17

基金资助

湖南省企业科技创新创业团队支持计划(2020);财政部和农业农村部-国家现代农业产业技术体系资助(CARS-41-Z08);湖南省科技人才托举工程(2020TJ-Q02)

Effects of Sorghum Type Diets Supplemented with Emulsifier and Lipase on Growth Performance and Slaughter Performance of Liangfenghua Chicken

  • DING Peng ,
  • GUO Yanghao ,
  • YUAN Yating ,
  • HE Yechun ,
  • SONG Zehe ,
  • ZHANG Haihan ,
  • HE Xi
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  • 1. Provincial and Ministerial Collaborative Innovation Center for the Production of Quality Livestock and Poultry Products, Engineering Research Center for Feed Safety and Efficient Utilization of Ministry of Education, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
    2. Yiyang Academy of Agricultural Sciences, Yiyang 413000, China;
    3. Hunan Xiangjia Animal Husbandry Co., Ltd., Changde 415300, China

Received date: 2022-03-13

  Online published: 2022-10-17

摘要

本试验旨在研究高粱型饲粮降能处理后添加乳化剂和脂肪酶对良凤花肉鸡生长性能和屠宰性能的影响。试验选用1 080羽体况基本一致的1日龄健康良凤花公鸡,随机分为6个组,每组6个重复,每个重复30羽。对照组饲喂玉米-豆粕型基础饲粮,5个试验组分别饲喂高粱型饲粮(高梁替代基础饲粮中部分玉米)、高粱型降能饲粮(高粱型饲粮降低0.125 MJ/kg代谢能)、高粱型降能饲粮添加乳化剂、高粱型降能饲粮添加脂肪酶以及高粱型降能饲粮添加乳化剂和脂肪酶。试验共56 d,分为2个阶段,分别为1~28日龄和29~56日龄。结果表明:1)与对照组相比,高粱型饲粮组良凤花肉鸡29~56日龄和1~56日龄平均日采食量和料重比显著提高(P<0.05);与高粱型饲粮组相比,高粱型降能饲粮组肉鸡28和56日龄体重以及各阶段平均日增重和平均日采食量显著降低(P<0.05),各阶段料重比显著提高(P<0.05);与高粱型降能饲粮组相比,高粱型降能饲粮中添加乳化剂或脂肪酶可显著改善肉鸡生长性能指标(P<0.05)。2)与对照组相比,高粱型降能饲粮组良凤花肉鸡半净膛率和全净膛率显著降低(P<0.05);与高粱型降能饲粮组相比,高粱型降能饲粮中添加脂肪酶和联合添加乳化剂和脂肪酶可显著改善肉鸡半净膛率和全净膛率(P<0.05)。综上所述,高粱可作为能量饲料替代良凤花肉鸡饲粮中的部分玉米,高粱型饲粮降能处理后饲喂将降低其生长性能,但添加乳化剂和脂肪酶可得到改善。

本文引用格式

丁鹏 , 郭阳浩 , 袁雅婷 , 何业春 , 宋泽和 , 张海涵 , 贺喜 . 高粱型饲粮添加乳化剂和脂肪酶对良凤花肉鸡生长性能和屠宰性能的影响[J]. 动物营养学报, 2022 , 34(9) : 5642 -5651 . DOI: 10.3969/j.issn.1006-267x.2022.09.020

Abstract

This study aimed to investigate the effects of energy-reducing sorghum type diets supplemented with emulsifier and lipase on growth performance and slaughter performance of Liangfenghua chicken. A total of 1 080 healthy Liangfenghua male chicks of 1-day-old with the nearly same weight were randomly divided into 6 groups with 6 replicates per group and 30 chicks per replicate. Chickens in the control group were fed a basal diet, and those in 5 experimental groups were fed the sorghum type diet (sorghum replaced part of corn in the basal diet), energy-reducing sorghum type diet (sorghum type diet decreased metabolic energy by 0.125 MJ/kg), energy-reducing sorghum type diet with emulsifier, energy-reducing sorghum type diet with lipase and energy-reducing sorghum type diet with emulsifier and lipase, respectively. The experiment lasted for 56 days and was divided into two stages, 1 to 28 days of age and 29 to 56 days of age, respectively. The results showed as follows:1) compared with the control group, the average daily feed intake and feed to gain ratio of Liangfenghua chicken of 29 to 56 days of age and 1 to 56 days of age in sorghum type diet group were significantly increased (P<0.05). Compared with sorghum type diet group, the body weight of Liangfenghua chicken at 28 and 56 days of age, the average daily gain and average daily feed intake in each stage in energy-reducing sorghum type diet group were significantly decreased (P<0.05), and the feed to gain ratio in each stage was significantly increased (P<0.05). Compared with energy-reducing sorghum type diet group, the energy-reducing sorghum type diet supplemented with emulsifier or lipase significantly improved the growth performance indices of chickens (P<0.05). 2) Compared with the control group, the half eviscerated carcass percentage and eviscerated carcass percentage of Liangfenghua chicken in energy-reducing sorghum type diet group were significantly decreased (P<0.05); compared with energy-reducing sorghum type diet group, the energy-reducing sorghum type diet supplemented with lipase and emulsifier and lipase in combination significantly improved the half eviscerated carcass percentage and eviscerated carcass percentage of chickens (P<0.05). In conclusion, sorghum can be used as energy feed instead of corn in Liangfenghua chicken diets, energy-reducing sorghum type diets reduce the growth performance of chickens, but it can be improved by adding emulsifier and lipase.

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