PHENOTYPIC AND GENETIC-PARAMETERS OF WEANING TRAITS IN DORPER SHEEP IN ZIMBABWE

被引：6

作者：

BUVANENDRAN, V ^{[1
]}

MAKUZA, SM ^{[1
]}

CHIRONGA, P ^{[1
]}

机构：

[1] UNIV ZIMBABWE,DEPT ANIM SCI,HARARE,ZIMBABWE

来源：

SMALL RUMINANT RESEARCH | 1992年 / 7卷 / 04期

关键词：

D O I：

10.1016/0921-4488(92)90170-9

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Data on weight and conformation score of 2466 Dorper lambs at weaning obtained over three lambing seasons in each of five years were analysed by least-squares procedures. Year-season of birth, rearing class, weaning age, age of dam and sex of lamb were significant sources of variation in weaning weight, and, with the exception of sex of lamb, in conformation score as well. Heritability estimates for weaning weight and conformation score were 0.19 and 0.09, and repeatability estimates 0.27 and 0.10, respectively. The heritability estimate for weaning weight was larger in twin lambs, than in singles. The genetic correlation between weaning weight and conformation score was 0.47.

引用

页码：369 / 374

页数：6

共 19 条

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