Article
Genetic effects on beef heifer puberty and subsequent reproduction.
Journal of animal science - 1 Dec 1992
Martin L C, Brinks J S, Bourdon R M, Cundiff L V
Abstract excerpt
Significant genetic variation exists within and between breeds of beef cattle for age at puberty (AP). In general, faster-gaining breed groups of larger mature size reach puberty at a later age than do slower-gaining breed groups of smaller mature size; breeds selected for milk production reach puberty at younger ages than do those breeds not selected for milk production. Heterosis, independent of heterosis...
Topics
- Age Factors
- Animals
- Breeding
- Cattle
- Crosses, Genetic
- Female
- Fertility
- Genetic Variation
- Hybrid Vigor
- Male
- Scrotum
- Sexual Maturation