动物营养学报 >

2017 , Vol. 29 >Issue 10: 3781 - 3786

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.10.041

研究简报 Short communications

黄羽肉鸡不同来源高粱表观代谢能的评定及其养分消化率的比较

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  • 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, 湖南畜禽安全生产协同创新中心, 长沙 410128
胡贵丽(1993-),女,贵州遵义人,硕士研究生,研究方向为饲料资源开发与利用。E-mail:1104969633@qq.com

收稿日期: 2017-04-04

  网络出版日期: 2017-09-28

基金资助

国家重点研发计划（2016YFD0501209）；2014科技部科技基础性工作专项（2014FY111000-3）

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Evaluation of Apparent Metabolic Energy and Comparison of Nutrient Digesibility of Different Sources Sorghum by Feeding Yellow-Feathered Broilers

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  • Engineering Research Center for Feed Safety and Efficient Utilization of Education, College of Animal Science and Technology, Hunan Agricultural University, Hunan Co-Innovation Center of Animal Production Safety, Changsha 410128, China

Received date: 2017-04-04

  Online published: 2017-09-28

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摘要

本试验旨在评定黄羽肉鸡不同来源高粱的表观代谢能（AME），并比较其养分消化率的差异。试验采用单因素随机设计，选择56日龄健康黄羽肉鸡公鸡24羽，随机分为4个组，每组6个重复，每个重复1羽。用美国高粱、湖南高粱和内蒙古高粱分别替代基础饲粮中20%玉米作为试验饲粮，采用套算法计算美国高粱、湖南高粱和内蒙古高粱的AME，并比较其养分消化率的差异。试验期7 d，分为预试期（第1~4天）和正试期（第5~7天）2个阶段。结果表明：1）内蒙古高粱的AME最高，比美国高粱和湖南高粱分别高12.17%和15.81%（P<0.01）。2）内蒙古高粱的粗纤维（CF）表观消化率最高，分别比美国高粱和湖南高粱高23.81%和27.87%（P<0.01）；美国高粱次之，比湖南高粱高3.28%（P<0.01）。内蒙古高粱的粗脂肪（EE）表观消化率极显著低于湖南高粱0.50%（P<0.01）。不同来源高粱的粗蛋白质（CF）、干物质（DM）、粗灰分（Ash）和无氮侵出物（NFE）表观消化率均无显著差异（P>0.05）。由此得出，通过套算法测定了美国高粱、湖南高粱和内蒙古高粱的AME分别为13.39、12.97和15.02 MJ/kg。不同来源高粱除AME、EE和CF表观消化率差异显著外，其余各养分表观消化率均无显著差异。

关键词： 黄羽肉鸡; 高粱; 单宁; 消化率; 套算法

本文引用格式

胡贵丽, 叶小飞, 王玉诗, 范志勇, 张石蕊, 贺喜 . 黄羽肉鸡不同来源高粱表观代谢能的评定及其养分消化率的比较[J]. 动物营养学报, 2017 , 29(10) : 3781 -3786 . DOI: 10.3969/j.issn.1006-267x.2017.10.041

Abstract

This study was conducted to evaluate the apparent metabolizable energy (AME) and compare the difference of nutrient digesibility of different sources sorghum by feeding yellow-feathered broilers. Twenty four 56-day-old healthy male yellow-feathered broilers were randomly allocated to four groups with six replicates per group and one broiler per replicate according single-factor randomized design. The experimental diets were the American sorghum, Hunan sorghum and Inner Mongolia sorghum to replace 20% corn in the basal diet, respectively, and evaluated the AME and compared the difference of nutrient digesibility of American sorghum, Hunan sorghum and Inner Mongolia sorghum. The experimental period lasted for 7 days, including 2 periods of 4-day pre-test period and 3-day test period. The results showed as follows:1) the AME of Inner Mongolia sorghum was the highest, which was significantly higher than that of American sorghum and Hunan sorghum for 12.17% and 15.81% (P<0.01). 2) The apparent digesibility of crude fiber (CF) of Inner Mongolia sorghum was the highest, which was significantly higher than that of American sorghum and Hunan sorghum for 23.81% and 27.87% (P<0.01); closely followed by the apparent digesibility of CF of American sorghum, which was significantly higher than that of Hunan sorghum for 3.28% (P<0.01). The apparent digesibility of ether extract (EE) of Inner Mongolia sorghum was significantly lower than that of Hunan sorghum for 0.05% (P<0.01). There were no significant difference in the apparent digesibility of crude protein (CF), dry matter (DM), crude ash (Ash) and nitrogen-free (NFE) of different sources sorghum (P>0.05). In conclusion, the AME of American sorghum, Hunan sorghum and Inner Mongolia sorghum by substitution method are 13.39, 12.97 and 15.02 MJ/kg, respectively. The AME and the apparent digesibility of EE and CF of different sources sorghum have significant differences, and the apparent digesibility of the other nutrients have no significant differences.

Key words： yellow-feathered broilers; sorghum; tannins; digesibility; substitution method

参考文献

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