肉用/役用型牛BPI划分方法的确证问题——以夏南牛为检验证据的例证意义  

A Confirmation of BPI-Mode Differentiated beef Purpose-type-breeds From Draft Type-Cattle-Breeds

作　　者：张英汉[1] 

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《中国牛业科学》2009年第2期42-43,共2页China Cattle Science

基　　金："十一五."国家科技支撑计划-动植物育种专项"优质肉用牛新品种选育"课题:肉牛育种BPI研究(2006BAD01A10)

摘　　要：夏南牛是我国自主培育的第一个肉用型牛品种,其平均BPI公牛为5.96 kg/cm,母牛4.27～4.40 kg/cm,均达到BPI划分肉/役牛经济类型的专门化肉用型牛的要求,从而构成了确证BPI方法的新的典型例证,表明BPI法具有适用性和可接受性。联系到BPI具有较高的遗传力,BPI方法可以作为衡量选择和培育专门化肉用型牛的必要条件。XIA-Nan beef breed is the first special beef-purpose-type-cattle breed developed in china, XIA-Nan＇s BPI averaged.♂ 5.96 kg/cm,♀4.27-4.4 kg/cm which are in keeping with BPI mode ,and that, XIA-Nan is a illustration of suitability and acceptability with BPI mode Because the heritability（h2）of BPI（Beef-Purpose-Index BPI or weigh to height ratio of cattle body ） estimated for rather higher, BPI＇S mode could be as a selecting essential condition when special beef type breed would be developing and breeding.

关 键 词：夏南牛 BPI 确证 必要条件 

分 类 号：S823.2[农业科学—畜牧学]