PL EN


Preferences help
enabled [disable] Abstract
Number of results
2004 | 45 | 2 | 215-224
Article title

Milk trait heritability and correlation with heterozygosity in yak

Title variants
Languages of publication
EN
Abstracts
EN
382 yak cows were examined for milk yield, fat, protein and lactose contents. Six polymorphic loci, s1-CN, -CN, -CN, -Lg, -La and MUC-1, were scored by PAGE electrophoresis for each individual. The values of milk yield, fat, protein and lactose content were 247.13 kg, 5.81%, 5.18% and 4.93%, respectively. Based on the 6 polymorphism loci, the average heterozygosity of the yak population was 0.1794. Calculated by the marker-based method, heritability estimates for milk yield, fat, protein and lactose contents were 0.353 ? 0.093, 0.316 ? 0.101, 0.415 ? 0.098 and 0.481 ? 0.035, respectively. The relatively high or medium heritability of these traits indicate that it is feasible to rely directly on them in breeding for the improvement in a relatively short period. The significant linear regression between heterozygosity and fat percentage with a positive slope (R = 0.0420) indicated that inbreeding affected milk fat content in this population.
Keywords
Discipline
Publisher

Year
Volume
45
Issue
2
Pages
215-224
Physical description
Contributors
author
author
author
author
author
References
Document Type
ARTICLE
Publication order reference
X.P. Jiang, College of Animal Science and Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, P.R. China
Identifiers
YADDA identifier
bwmeta1.element.element-from-psjc-7dfe5900-6236-30ba-9e84-9b930bffe7fb
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.