Genetic Srtucture of Breed Group of Black and White Cows for Some Genetic Biochemical Systems

N. CHEMSHIROVA and A. TENEVA

Institute of Animal Science, BG-2230 Kostinbrod, Bulgaria

Abstract

CHEMSHIROVA, N. and A. TENEVA, 2002. Genetic srtucture of breed group of Black and White cows for some genetic biochemical systems. Bulg. J. Agric. Sci., 8: 257–260

The aim of this study was to define the polymorphisms of the proteins – hemoglobin (HB) and transferrin (TF), and the ferments – alcaline phosphatase (ALP), amylase (AMY₁), ceruloplasmin (CP) in 84 cows of the Black and White population.
The allele and genotype frequencies on the investigated polymorphic loci were determinated.
It was established a shortage of heterozigotiness on the transferrin, ceruloplasmin and alcaline phosphatase loci, and a high persentage of homozigotiness of the HB, ALP and CP loci.
It was, also, established a breach in the genetic balance of the TF and ALP loci.

Key words: cattle, genetic structure, genetic polymorphism