Milk production traits

Association between a polymorphism of the α-lactalbumin gene and milk production traits in Chinese Holstein cows

J. P. Zhou and Dong, C. H., Association between a polymorphism of the α-lactalbumin gene and milk production traits in Chinese Holstein cows, vol. 12, pp. 3375-3382, 2013.

The traits particularly important for milk production include milk yield, protein percentage, fat percentage, and the somatic cell score. Alpha-lactalbumin (α-LA) is an important whey protein of cow milk, and is also present in the milk of many other mammalian species. In this study, we analyzed the genetic polymorphisms of the α-LA gene and their relationship to milk production traits (milk yield, protein percentage, fat percentage, and somatic cell score) in Chinese Holstein cows.

Three novel SNPs of the bovine Tf gene in Chinese native cattle and their associations with milk production traits

Z. H. Ju, Li, Q. L., Huang, J. M., Hou, M. H., Li, R. L., Li, J. B., Zhong, J. F., and Wang, C. F., Three novel SNPs of the bovine Tf gene in Chinese native cattle and their associations with milk production traits, vol. 10, pp. 340-352, 2011.

Transferrin (Tf) is a β-globulin protein that transports iron ions in mammalian cells. It contributes to innate immunity to microbial pathogens, primarily by limiting microbial access to iron. Thus, polymorphisms present in bovine Tf could potentially underlie inherited differences in mastitis resistance and milk production traits.

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