Long-term changes in the frequency of beta-casein, kappa-casein and beta-lactoglobulin alleles in Polish Holstein-Friesian dairy cattle
نویسندگان
چکیده
1. Aschaffenburg R., Drewry J., 1955. Occurrence of different beta-lactoglobulin in cow’s milk. Nature 176, 218–219 https://doi.org/10.1038/176218... CrossRef Google Scholar
منابع مشابه
Beta-casein A1/A2, kappa-casein and beta-lactoglobulin polymorphisms in Turkish cattle breeds
In this study, the genetic diversity of three milk protein genes namely beta-casein, kappacasein and beta-lactoglobulin was estimated in Turkish cattle breeds. Based on these genes, breeds in Turkey have been grouped as: 1) Eastern Anatolian Red, Anatolian Black and Southern Anatolian Red and 2) Turkish Grey, Turkish Holstein and Holstein Candidate Bulls. B alleles of the three studied genes, w...
متن کاملGenetic Variants of Beta-casein in Holstein Dairy cattle in sloVaKia
the aim of the study was to detect allelic and genotypic frequencies of a variants of betacasein (csn2) in Holstein cows and bulls in slovakia and to analyze milk production traits of tested cows in dependence on their csn2 genotypes. totally, 92 cows at the first parity and 5 bulls were tested. The samples were taken from cow’s vaginal smear and bull’s semen. DNA analyses were performed using ...
متن کاملEffect of kappa-casein and beta-lactoglobulin loci on milk production traits and reproductive performance of Holstein cows.
The effects of kappa-casein (kappa-CN) and beta-lactoglobulin (beta-LG) loci on milk production traits (milk, fat, protein, and lactose yield, fat, protein, and lactose content) and reproductive performance (gestation length, calving interval, age at first and second calving, number of services per conception) was estimated for 278 Holstein cows in the first 2 lactations. Genotypes of kappa-CN ...
متن کاملA note on frequency of A1 and A2 variants of bovine beta-casein locus in Polish Holstein bulls*
Besides its nutritional value, bovine beta-casein is a source of bioactive peptides called betacasomorphins produced during digestion of raw or processed milk. It was shown that the betacasomorphin 7 originates only from beta-casein variants A1 or B and may be a significant risk factor in human ischemic heart disease, arteriosclerosis, type I diabetes and sudden infant death syndrome. In this s...
متن کاملPolymorphism in the Beta Casein Gene and analysis of milk characteristicsin Gir and Guzerá dairy cattle.
Several human health problems have been related to the allergenic constitution of bovine milk due to the body's immune reaction to milk proteins. It is necessary find solutions to minimize the occurrence of such reactions, given the importance of milk as a source of animal protein. The aim of this study was to evaluate the allelic frequency of the CSN2 gene and to evaluate differences in the ch...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Animal and Feed Sciences
سال: 2023
ISSN: ['1230-1388', '2719-8448']
DOI: https://doi.org/10.22358/jafs/157531/2023