| 肉仔鸡对菜籽粕代谢能的评定及预测模型研究 |
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| 引用本文： | 丁鹏,黄祥祥,宋泽和,范志勇,呙于明,贺喜.肉仔鸡对菜籽粕代谢能的评定及预测模型研究[J].畜牧兽医学报,2019,50(12):2449-2457. |
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| 作者姓名： | 丁鹏 黄祥祥 宋泽和 范志勇 呙于明 贺喜 |
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| 作者单位： | 1. 湖南农业大学动物科学技术学院, 湖南家禽安全生产工程技术研究中心, 饲料安全与高效利用教育部工程研究中心, 湖南畜禽安全生产协同创新中心, 长沙 410128;2. 中国农业大学动物科学技术学院 动物营养学国家重点实验室, 北京 100193 |
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| 基金项目： | 教育部长江学者和创新团队发展计划项目（IRT0945）；湖南农业大学“双一流”建设项目（SYL201802015）；湖南农业大学重大科研项目暨创新团队培育工程项目（17PYXM04） |
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| 摘 要： | 旨在建立14及28日龄肉仔鸡对湖南省内6个不同地区菜籽粕表观代谢能（AME）和氮校正表观代谢能（AMEn）的预测方程。本试验共选取700羽1日龄AA肉仔鸡，根据日龄进行两个阶段的试验。第一阶段（7~14日龄）选取420羽肉仔鸡随机分为7个处理，每个处理10个重复，每个重复6羽；第二阶段（21~28日龄）选取280羽肉仔鸡随机分为7个处理，每个处理10个重复，每个重复4羽。两个阶段中的7个处理组分别为6个不同地区的菜籽粕采用全替代法设计的试验饲粮组和1个无氮饲粮组。采用全收粪法测定14及28日龄肉仔鸡对菜籽粕的AME和AMEn，并通过回归分析建立预测方程。结果表明，14日龄肉仔鸡对菜籽粕的AME和AMEn分别为7.44和7.35 MJ·kg-1，AME和AMEn最佳预测方程分别为AME=24.98-0.39NDF和AMEn=25.04-0.39NDF；28日龄肉仔鸡对菜籽粕的AME和AMEn分别为8.01和7.91 MJ·kg-1，AME和AMEn最佳预测方程分别为AME=23.08-0.34NDF和AMEn=23.06-0.34NDF。本研究结果完善了肉仔鸡菜籽粕代谢能的数据库，为菜籽粕在畜禽饲粮中的应用提供了支撑。
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| 关 键 词： | 肉仔鸡 菜籽粕 日龄 代谢能 预测方程 |
| 收稿时间： | 2019-06-04 |
Evaluation and Prediction Model of Metabolic Energy of Rapeseed Meal for Broilers |
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| DING Peng,HUANG Xiangxiang,SONG Zehe,FAN Zhiyong,GUO Yuming,HE Xi.Evaluation and Prediction Model of Metabolic Energy of Rapeseed Meal for Broilers[J].Acta Veterinaria et Zootechnica Sinica,2019,50(12):2449-2457. |
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| Authors: | DING Peng HUANG Xiangxiang SONG Zehe FAN Zhiyong GUO Yuming HE Xi |
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| Institution: | 1. Hunan Co-innovation Center for Livestock and Poultry Safety, Engineering Research Center for Feed Safety and Efficient Utilization of Ministry of Education, Hunan Engineering Research Center of Poultry Production Safety, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;2. State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China |
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| Abstract: | This study aimed to establish the prediction equation of AME and AMEn of rapeseed meal for broiler chicken in 6 different areas from Hunan Province. Seven hundred 1-day-old AA broilers were divided into two test stages according to their age. The 420 broilers were randomly divided into 7 groups with 10 replicates per group and 6 broilers per replicate in the first stage(7-14 days old), the 280 broilers were randomly divided into 7 groups with 10 replicates per group and 4 broilers per replicate in the second stage(21-28 days old). The 7 treatment groups in two stages were made up of 6 experimental diet groups designed by full substitute for rapeseed meal from 6 different areas and 1 nitrogen-free diet group. The AME and AMEn of rapeseed meal from 6 different areas for broiler chicken on 14 and 28 days old were determined by total feces collection method and the prediction equation were established by stepwise regression method. The results showed as follows, the AME and AMEn of rapeseed meal for broiler on 14 days old were 7.44 and 7.35 MJ·kg-1 respectively, the prediction equation of AME and AMEn were AME=24.98-0.39NDF and AMEn=25.04-0.39NDF; the AME and AMEn of rapeseed meal for broiler on 28 days old were 8.01 and 7.91 MJ·kg-1 respectively, the prediction equation of AME and AMEn were AME=23.08-0.34NDF and AMEn=23.06-0.34NDF. The results of the study improved the database of the metabolism energy of rapeseed meal for broiler chickens, and provided support for the application of rapeseed meal in livestock and poultry diet. |
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| Keywords: | broiler chicken rapeseed meal age metabolic energy prediction equation |
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