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Full-Text Articles in Medicine and Health Sciences
Effects Of Beta And Kappa Casein On Breeding Values Predictions In Dairy Cattle, Chortip Aroondechachai, Chancharat Reodecha, Monchai Duangjinda, Duangsmorn Suwattana
Effects Of Beta And Kappa Casein On Breeding Values Predictions In Dairy Cattle, Chortip Aroondechachai, Chancharat Reodecha, Monchai Duangjinda, Duangsmorn Suwattana
The Thai Journal of Veterinary Medicine
The objective of this study was to estimate the genetic parameters and breeding values for milk yield, protein yield and protein percentage in 87 crossbred dairy cattle with pedigree and production records and beta and kappa casein genotypes. The data was analyzed using three mixed model equations. The first model included fixed effects and random effects, identifying additive and permanent environments. The second model was similar to the first model using beta (a) or kappa (b) casein genotype (single gene) effect. The third model was the same as the first model but used composite beta and kappa casein genotype (multigene) …
Genetic Polymorphism Of Beta And Kappa Casein In Crossbred Dairy Cattle, Chortip Aroondechachai, Chancharat Reodecha, Duangsmorn Suwattana, Monchai Duangjinda
Genetic Polymorphism Of Beta And Kappa Casein In Crossbred Dairy Cattle, Chortip Aroondechachai, Chancharat Reodecha, Duangsmorn Suwattana, Monchai Duangjinda
The Thai Journal of Veterinary Medicine
The objective of this study was to determine the frequencies of the genetic variants of the beta and kappa casein gene in 87 crossbred dairy cattle. Beta and kappa casein genotypes were investigated, the first by an allele-specific polymerase chain reaction (ASPCR) and the second by a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Three beta casein alleles of A1, A2 and B were found, with frequencies of 0.30, 0.61 and 0.09, respectively. In total, five genotypes of A1 A1, A1 A2, A2 A2, A2B and A1B were found, with frequencies of 0.06, 0.41, 0.36, 0.11 and 0.06. Three kappa …