早期断奶对犊牛生产性能和母牦牛繁殖性能的影响

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英文篇名：Effects of Early Weaning on Production Performance of Calf and the Reproductive Performance of Female Yaks 作者：朱彦宾 ; 巴桑旺堆 ; 旦久罗布 ; 何世丞 ; 贡嘎桑布 ; 普布次仁 ; 旺久 ; 尼玛 ; 平措占堆 英文作者：Zhu Yanbin;Basang Wangdui;Danjiu Luobu;He Shicheng;Gongga Sangbu;Pubu Ciren;Wang Jiu;Ni Ma;Pingcuo Zhandui;Institute of Animal Husbandry and Veterinary Medicine, Tibet Academy of Agricultural and Animal Husbandry Science;Tibet Academy of Agriculture and Animal Husbandry Science;Nagqu grassland station;Institute of Pratacultural Science,Tibet Academy of Agriculture and Animal Husbandry Science; 关键词：早期断奶 ; 犊牛 ; 生产性能 ; 繁殖性能 英文关键词：Early-weaning;;Calf;;Production performance;;Reproductive performance 中文刊名：GXNB 英文刊名：Genomics and Applied Biology 机构：西藏自治区农牧科学院畜牧兽医研究所;西藏自治区农牧科学院;那曲地区草原站;西藏自治区农牧科学院草业科学研究所; 出版日期：2017-12-18 11:16 出版单位：基因组学与应用生物学 年：2019 期：v.38 基金：自治区重大科技专项“金牦牛科技工程”;; 国家肉牛牦牛产业技术体系(CARS-37)项目共同资助 语种：中文; 页：GXNB201901017 页数：4 CN：01 ISSN：45-1369/Q 分类号：99-102

摘要

本试验旨在研究早期断奶对犊牛生产性能和母牦牛繁殖性能的影响。试验组采取"全哺乳+早期诱饲+补饲+放牧+早期断奶"的模式进行饲养,对照组采取传统放牧。实验表明:试验组犊牛5月龄实现早期断奶,体重极显著高于对照组(p<0.01)((53.13±12.34) kg VS (23.44±9.38) kg);试验组犊牛7月龄时体重达71.42 kg,比对照组提高了1.36倍;血液检测分析:与对照组相比,试验组显著提高了牛表皮生长因子(p<0.05);12月龄时体重极显著高于对照组(p<0.01)((87.25±23.43) kg VS (39.51±17.28) kg);当年生犊牦牛实施早期断奶,母牦牛进入下一个繁殖周期,其"一年一胎"比例达68.6%。因此,早期断奶尚未影响犊牦牛生长发育,同时有利于母牦牛年产犊的提高。
        The aim of this study was to investigate the effects of early weaning on the production performance of calves and the reproductive performance of mother yaks. The calves in the experimental group were fed with"full lactation +early feeding +feeding +grazing +early weaning"pattern, and the control adopted traditional grazing pattern. The results showed that: the average weight of calves in the experimental group that achieved early weaning at the age of 5 months was significantly higher than that in the control group(p<0.01)(53.13±12.34 kg VS23.44 ±9.38 kg); at the 7-month-old, it achieved 71.42 kg, 1.36 times higher than the control group; Blood test analysis: Compared with the control group, the test group significantly increased the bovine epidermal growth factor(p<0.05); at 12-month-old, a dramatically increase of weight in experiment group was observed(p<0.01)(87.25±23.43 kg VS 39.51±17.28 kg); When the young calves were conducted at early weaning, the mother yaks came into the next breeding cycle, and the"one year a child"ratio achieved 68.6%. Therefore, early weaning might have not yet affected the growth and development of yaks, and be conducive to the improvement of annual calf production of female yaks as well.

引文

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