河流型水牛犊牛初生重影响因素分析  

Factors Affecting the Birth Weight in River Buffalo calf(Bubalus Bubalis)

作　　者：韦科龙 卢瑛 钟华配 文崇利 梁淦 黄才斌 邓廷贤 WEI Ke-long;LU Ying;ZHONG Hua-pei;WENG Chong-li;LIANG Gan;HUANG Cai-bin;DENG Ting-xian(Key Laboratory of Buffalo Genetics,Breeding and Reproduction Technology,Ministry of Agriculture and Guangxi,Guangxi Buffalo Research Institute,Nanning 530001)

机构地区：[1]广西壮族自治区水牛研究所/农业部(广西)水牛遗传繁育重点实验室,南宁530001

出　　处：《中国奶牛》2022年第12期25-28,共4页China Dairy Cattle

基　　金：广西自然科学基金重点项目(2020GXNSFDA297032);广西自然科学基金面上项目(2022GXNSFAA035522)。

摘　　要：本文旨在针对广西水牛研究所水牛种畜场2016-2021年间共1245条犊牛出生记录,利用一般线性模型探究不同因素对河流型水牛犊牛初生重的影响。结果发现:河流型水牛犊牛初生重平均为36.89±5.78kg,其中30~45kg的初生重占比达82.97%;性别、胎次和季节均对河流型水牛犊牛初生重有显著影响(P<0.05),其中1~4胎出生的犊牛初生重依次增大,并且第4胎的犊牛初生重显著大于第1、2胎,秋季出生的犊牛初生重显著低于春季,公犊初生重显著大于母犊。本研究的结果对河流型水牛的选育和生产性能的提升具有重要意义。The objective of this paper is to explore the effects of different factors on the birth weight in river-type buffalo calves using a general linear model based on a total of 1245 calf birth records.These records at the period from 2016 to 2021,were from the buffalo breeding farm of Guangxi Buffalo Research Institute.The results showed that the average birth weight of river buffalo calves was 36.895.78kg,of which 30-45kg accounted for 82.97% of the birth weight.Further,we found that these factors including sex,parity and season had significant effects on birth weight of river buffalo calves(P<0.05).For them,the birth weight of calves born in 1st to 4th parity increased in turn,and the birth weight of calves in the 4th parity was significantly greater than that in the 1st and 2nd parity.In addition,the birth weight of calves born in autumn was significantly lower than that in spring,and the birth weight of male calves was significantly larger than that of female calves.These findings are of great significance for the selection of river-type buffalo and the improvement of production performance.

关 键 词：河流型水牛 犊牛 初生重 因素分析 

分 类 号：S823.3[农业科学—畜牧学]