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机构地区:[1]河北省畜牧水产局 [2]河北沧县种羊场
出 处:《河北农业大学学报》1992年第2期82-85,共4页Journal of Hebei Agricultural University
摘 要:1987年我国首次引进纯肉用品种羊—法国夏洛莱肉羊,随着育种工作的开展和深入,种羊的鉴定、等级评定和种畜卡片的使用等均涉及体重。虽然绵羊体重的测定不象牛那样困难,但确实费时费工,而且影响羊群的生长发育。迄今尚未有人用体针长和胸围来推算肉羊的体重,因此本文的目的在于分析夏洛莱肉羊体重与体斜长、胸围的回归关系,建立二元回归方程y(体重)=0.83x_1(体斜长)+0.70x_2 (胸围)-85.97,并把微机技术应用于畜牧科研工作,在提高科研人员的工作效率和计算的准确性方面,取得了令人满意的结果,为肉羊体重估算和育种工作提供了简便的方法。It was the first time in 1987 that China has imported the puremeat breed sheep—Charollais sheep. With carrying out and going deep into breeding work, all of the appraisement of breeding sheep,assessment of grade, and breeding card used will concern with livewight, although it is not so difficult as cattle for sheep to be weighed, in indeed takes a long time, with hard working and also having an effect on the growth of sheep. Up to now, it has not been reported that anybody has ever derived the liveweight of pure-meat breed sheep from body length and heart girth. Thus,this paper aims at analyzing the regression relation of liveweight, body length and heart girth of Charollais sheep and also setting up the two factor's regression equation by computer, that is Y (body weight) =0.83x_1 (body lenght) +0.70x_2 (heart girth) -85.97. The results are satisfactory in raising working efficiency and accuracy of calculation by applying computer technique to animal husbandry research. It has provided a simple method for breeding work and body weight estimate.
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