Relationships among bovine male and female reproductive traits [beef cattle; age at puberty]
1990
Perry, V. | Chenoweth, P.J. | Bodero, D. (Queensland Univ., Goondiwindi (Australia). Dept. of Farm Animal Medicine and Production) | Munro, R.K. | Post, T.B. (Commonwealth Scientific and Industrial Research Organization, North Rockhampton (Australia). Div. of Animal Production)
No significant relationship was found between age at puberty in heifers and the age and scrotal circumference at puberty in related bulls. There was a significant effect of genotype and sire on age at puberty of heifers and a significant effect of genotype on weight at puberty in heifers. There was a significant effect of genotype on age and weight at puberty of bulls. A significant difference 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 variations in genotypes and ages in this study were too great to establish such a relationship.
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