Relationships among bovine male and female reproductive traits

Aust Vet J. 1990 Jan;67(1):4-5. doi: 10.1111/j.1751-0813.1990.tb07380.x.

Abstract

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.

MeSH terms

  • Age Factors
  • Analysis of Variance
  • Animals
  • Body Weight
  • Cattle / genetics
  • Cattle / physiology*
  • Female
  • Genotype
  • Male
  • Scrotum / anatomy & histology
  • Sex Factors
  • Sexual Maturation*