RELATIONSHIPS AMONG BOVINE MALE AND FEMALE REPRODUCTIVE TRAITS

被引:10
作者
PERRY, VEA [1 ]
MUNRO, RK [1 ]
CHENOWETH, PJ [1 ]
BODERO, DAV [1 ]
POST, TB [1 ]
机构
[1] CSIRO,TROP CATTLE RES CTR,ROCKHAMPTON,QLD 4701,AUSTRALIA
关键词
D O I
10.1111/j.1751-0813.1990.tb07380.x
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
No significant relationship (p greater than 0.05) was found between age at puberty in heifers and the age and scrotal circumference at puberty in related bulls. There was a significant effect (p less than 0.01) of genotype and sire on age at puberty of heifers and a significant effect (p less than 0.05) of genotype on weight at puberty in heifers. There was a significant effect of genotype on age (p less than 0.01) and weight (p less than 0.05) at puberty of bulls. A significant difference (p less than 0.05) in age at puberty of bulls was found between the 2 methods of assessing puberty. It is possible that the assessment of puberty of heifers at 2-month intervals may not have been precise enough to detect such a relationship and/or that the variation in genotypes and ages in this study were too great to establish such a relationship.
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页码:4 / 5
页数:2
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