日粮添加高比例过瘤胃脂肪对生长肉用绵羊采食行为的影响

doi:10.11843/j.issn.0366-6964.2024.03.020

畜牧兽医学报 ›› 2024, Vol. 55 ›› Issue (3): 1077-1084.doi: 10.11843/j.issn.0366-6964.2024.03.020

日粮添加高比例过瘤胃脂肪对生长肉用绵羊采食行为的影响

常馨丹^1,2, 胡帆^1,2, 伍志武^1,2, 叶炳森¹, 刘铁海³, 林杰³, 贺志雄^1,2*, 谭支良^1,2

1. 中国科学院亚热带农业生态研究所亚热带农业生态过程重点实验室畜禽养殖污染控制与资源化技术国家工程实验室湖南省畜禽健康养殖工程技术研究中心动物营养生理与代谢过程湖南省重点实验室中国科学院亚热带农业生态研究所公共技术中心, 长沙 410125;
2. 中国科学院大学, 北京 100049;
3. 呼伦贝尔农垦特泥河农牧场有限公司兽医站, 呼伦贝尔 021000

收稿日期:2023-06-26 出版日期:2024-03-23 发布日期:2024-03-27
通讯作者: 贺志雄,主要从事反刍动物营养与分子生物学研究,E-mail:zxhe@isa.ac.cn
作者简介:常馨丹(2001-),女,藏族,四川乡城人,硕士生,主要从事反刍动物营养研究,E-mail:825142663@qq.com
基金资助:
中国科学院战略性先导科技专项（XDA26040304；XDA26050102）；创新省份建设专项（2019RS3021）

Effect of High Proportion Rumen Bypass Fat Diet on Feeding Behavior of Growing Mutton Sheep

CHANG Xindan^1,2, HU Fan^1,2, WU Zhiwu^1,2, YE Bingsen¹, LIU Tiehai³, LIN Jie³, HE Zhixiong^1,2*, TAN Zhiliang^1,2

1. Institutional Center for Shared Technologies and Facilities of Institute of Subtropical Agriculture, Hunan Provincial Key Laboratory of Nutritional Physiology and Metabolic Process, Hunan Livestock & Poultry Health Breeding Engineering Technology Research Center, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Key Laboratory for Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. Hulun Buir Agricultural Reclamation Tenihe Agricultural Ranch Co., Ltd. Veterinary Station, Hulun Buir 021000, China

Received:2023-06-26 Online:2024-03-23 Published:2024-03-27

摘要/Abstract

摘要： 旨在研究高比例过瘤胃脂肪日粮对生长期呼伦贝尔羊采食量和采食行为的影响。试验选取12只平均体重为（20±1.9）kg的呼伦贝尔羊随机分配到对照组（CON）和高脂组（23.65%过瘤胃高脂日粮，HF），每组6只，并用摄像头连续记录各试验呼伦贝尔羊的行为活动。连续观察并记录试验羊正试期第83和84天的行为，包括：采食、反刍、饮水、站立、卧倒行为，计算每个行为活动在24 h内的总分钟数，并通过干物质、脂肪、粗蛋白采食量来计算每千克日粮采食时间、采食次数、干物质采食速度、脂肪采食速度、粗蛋白采食速度等指标。结果表明，日粮添加高比例过瘤胃脂肪显著降低生长呼伦贝尔羊精料采食量、干物质采食量和粗蛋白的采食量及采食速度（P<0.05），降低呼伦贝尔羊的采食次数、每日反刍时间、每千克日粮的反刍时间和饮水时间（P<0.05），增加粗脂肪采食量和采食速度（P<0.01）。综上表明，日粮添加高比例过瘤胃脂肪可能通过影响生长肉羊采食次数来降低精料采食量，并减少其饮水行为。

关键词: 家畜行为学, 高比例过瘤胃脂肪, 采食量, 呼伦贝尔羊

Abstract: The main purpose of this experiment was to explore the effect of high proportion rumen bypass fat diet on feed intake and feeding behavior of Hulun Buir sheep during growth. Twelve Hulun Buir sheep with an average weight of (20±1.9) kg were randomly assigned to the control group (CON, n=6) and the high fat group (23.65% high rumen bypass fat diet, HF, n=6). And continuously record the behavioral activities of each Hulun Buir sheep during the experiments using a camera. The behaviors of the experimental sheep on the 83 d and 84d were continuously observed and recorded, including feeding, ruminating, drinking, standing, and lying. The time spent on each activity over a 24 h period had been recorded. Based on the feed intake, the rate of dry matter, fat, and crude protein intake were calculated. The results showed that dietary supplementation with high proportion of rumen bypass fat significantly decreased the concentrate feed intake, dry matter intake, crude protein intake and feeding speed (P<0.05), the feed intake times, daily rumination time, rumination time per kilogram of diet and drinking time (P<0.05) of growing Hulun Buir sheep (P<0.05), but increased the intake and feed speed of crude fat (P<0.01). The results suggested that dietary supplementation of high proportion of rumen bypass fat may reduce concentrate intake by affecting the feeding frequency of growing sheep, accompanied by a decrease in drinking behavior.

Key words: ethology of livestock, high rumen bypass fat diet, feed intake, Hulun Buir sheep

中图分类号:

S826.5

常馨丹, 胡帆, 伍志武, 叶炳森, 刘铁海, 林杰, 贺志雄, 谭支良. 日粮添加高比例过瘤胃脂肪对生长肉用绵羊采食行为的影响[J]. 畜牧兽医学报, 2024, 55(3): 1077-1084.

CHANG Xindan, HU Fan, WU Zhiwu, YE Bingsen, LIU Tiehai, LIN Jie, HE Zhixiong, TAN Zhiliang. Effect of High Proportion Rumen Bypass Fat Diet on Feeding Behavior of Growing Mutton Sheep[J]. Acta Veterinaria et Zootechnica Sinica, 2024, 55(3): 1077-1084.

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日粮添加高比例过瘤胃脂肪对生长肉用绵羊采食行为的影响

Effect of High Proportion Rumen Bypass Fat Diet on Feeding Behavior of Growing Mutton Sheep

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