Abstract
This work is aimed at determination of genetic dissimilarities between two allied cattle breeds: Kazakh Whiteheaded and Hereford. Hair follicles were analyzed, from which DNA was extracted with subsequent amplification. Identification of amplification products was performed using an ABI Prism 310 genetic analyzer. Allele 147 was detected in Kazakh Whiteheaded cattle in locus BM 2113, there was no such allele in Hereford cattle. Average number of alleles per one locus of Hereford and Kazakh Whiteheaded breeds was 11.82 and 12.27, respectively. Herewith, the number of private alleles in Kazakh Whiteheaded cattle was 10 and in Herefordcattle-11. No confidential difference in average heterozygosity was determined. Analysis of sample allele fund with regard to both considered breeds revealed the characteristics’ range for both of them, thus facilitating determination of genetic dissimilarity between the two breeds.
Highlights
In 1950 in Kazakhstan the first cattle breed was approved: Kazakh Whiteheaded, created on the basis of Kazakh and Kalmyk cattle by cross breeding with servicing bulls of Hereford breed imported fromUruguay and England (Dankvert, 2007; Cherekaev and Cherekaeva, 1973).In recent decade, aiming at increase in productivity of Kazakh Whiteheaded cattle, Hereford bulls were again used, admixture of new blood was applied, that is, with single and double blood admixture.the studies were aimed at determination of genetic properties of Kazakh Whiteheaded and Hereford breeds
In Hereford breed the average number of alleles per one locus was 11.82; in Kazakh Whiteheaded breed - 12.27
In Hereford breed the existence of private alleles was detected in four loci and in Kazakh Whiteheaded breed in two loci
Summary
The studies were aimed at determination of genetic properties of Kazakh Whiteheaded and Hereford breeds Selection of these breeds for studies was based on the fact that Kazakh Whiteheaded breed originated from Hereford cattle; as a consequence, the new breed inherited identical color type, conformation and productive properties. Since phenotypic properties of both breeds are the same, it would be interesting to clarify the aspect of genetic similarity of these two breeds. It is well-known that significant contribution to characteristic of allele variety is made by regional populations, which were formed mainly on the basis of local cattle with its own unique allele fund and under conditions of relative geographic isolation (Tapio et al, 2010)
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