Tkhan' Kh Kh, Mashurov A M, Lan' D Kh, Fuk N Z
Genetika. 1991 Mar;27(3):487-95.
The types of blood hemoglobin, transferrin and albumin as well as the types of alpha s1-casein, beta-casein and beta-lactoglobulin revealed by starch-gel electrophoresis were used in analysis of the results obtained in crossings of Holsteins-Frisian and Laisind races of cattle bred in Vietnam. The nature of alteration in frequencies of alleles and genotypes for these proteins was shown. The indices of homo- and heterozygosity, the level of polymorphism and the number of effective alleles were calculated. The status of genetic balance has been regarded in polymorphic systems under study. Alongside with this, a type of inheritance of quantitative characteristics, such as milking, fat and albumin percentage in milk, lactation duration, the weight of newborns and cows after first calving were traced on the background of changes in frequencies of blood and milk proteins in starting variants and their crossbreeds in 3 generations.
