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Relationships among bovine male and female reproductive traits
Author(s) -
PERRY VEA,
MUNRO RK,
CHENOWETH PJ,
BODERO DAV,
POST TB
Publication year - 1990
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1990.tb07380.x
Subject(s) - sire , genotype , biology , significant difference , sexual maturity , endocrinology , medicine , delayed puberty , zoology , hormone , genetics , gene
SUMMARY No significant relationship (p>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<0.0l) of genotype and sire on age at puberty of heifers and a significant effect (p<0.05) of genotype on weight at puberty in heifers. There was a significant effect of genotype on age (p<0.0l) and weight (p<0.05) at puberty of bulls. A significant difference (p<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.