Ceruloplasmin Polymorphism and Parentage Test in Hereford Cattle

Validation of 17 Microsatellite Markers for Parentage Verification and Identity Test in Chinese Holstein Cattle

To develop an efficient DNA typing system for Chinese Holstein cattle, 17 microsatellites, which were amplified in four fluorescent multiplex reactions and genotyped by two capillary electrophoresis injections, were evaluated for parentage verification and identity test. These markers were highly polymorphic with a mean of 8.35 alleles per locus and an average expected heterozygosity of 0.711 i...

I I . Selection in Hereford Cattle. Expected and Realized Response

Data from 14 inbred lines and 14 linecross groups of Hereford cattle at the San Juan Basin Research Center, Hesperus, were used to evaluate expected and realized response in birth and weaning traits and postweaning traits in males and females over a 28-yr period. There were large differences in the means and variances of the performance traits among the inbreds and linecrosses, with the inbreds...

Bulletin No. 307 - Progeny Studies with Hereford and Shorthorn Cattle

Bulletin No. 307 - Progeny Studies with Hereford and Shorthorn Cattle

A Genetic Investigation of Allometric Growth in Hereford Cattle.

IOLOGISTS have long directed attention to problems relating to the B determination of quantitative measures of body conformation and the genetic factors responsible for variation in conformation. Such variation in conformation hetween individual aninials within a species is due to differences in the relative proportions of the various parts to each other and to the animal as a whole. D’ARCY p t...