GENETIC AND PHENOTYPIC PARAMETERS FOR LITTER TRAITS OF DMAN EWES

被引：17

作者：

BOUJENANE, I

KERFAL, M

KHALLOUK, M

机构：

[1] NATL INST AGR RES,ERRACHIDIA,MOROCCO

[2] ORMVA TADLA,LIVESTOCK EXTENS SERV,FQUIH BEN SALAH,MOROCCO

来源：

ANIMAL PRODUCTION | 1991年 / 52卷

关键词：

EWES; HERITABILITY; LITTER TRAITS; REPEATABILITY;

D O I：

10.1017/S0003356100005754

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

A total of 1754 records for litter traits of 458 D'man ewes sired by more than 45 rams were analysed to estimate repeatability, heritability and genetic and phenotypic correlations. Repeatability estimated by the intraclass correlation method was 0.11, 0.11, 0.12 and 0.15 for litter sizes at birth and at weaning and litter weights at birth and at weaning, respectively. Paternal half-sib estimates of heritability were 0.09 (s.e. 0.06), 0.04 (s.e. 0.05), 0.15 (s.e. 0.07) and 0.08 (s.e. 0.05), respectively. Genetic correlations among the traits were all positive and varied from 0.17 to 0.72, whereas phenotypic correlations ranged from 0.68 to 0.86.

引用

页码：127 / 132

页数：6

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