Tkachyk T. The complex use of various classes of genetic markers during creation of new hens populations

Research object: genetic processes which descend in subpopulations of borki meat-egg hens at their cultivation " in itself". Research goal: rising informativity of genetic monitoring of populations of hens during their creation, by complex use of different classes of genetic markers. Methods of research: immunogenetical, electrophoretic, zootechnical, pathoanatomical, genetical-population, phonotypical, statistical methods. Theoretical and practical results, newness: For the first time the system of monitoring which is based on complex use of different classes of genetic markers and directed on conservation of variability of a local population of meat-egg hens is developed. Genetic monitoring four generations of hens with application of five classes of hereditary markers is lcarried out, the evaluation of genetic differentiation of trial subpopulations is given, the optimum level of a heterozygosis of a bird on ovoprotein locuses (19,90 %) is fixed. Hereditary formulas of borki meat-egg hens of different subpopulations on locuses which monitor colour of down and growth rate of a plumage are determined. The majority of trial groups on genes-markers of a sex is consolidated and high efficiency of application color sexing and feather sexing for division of daily chickens on a sex is proved. For the first time absence of influence of late feathering allele on economic traits of borki meat-egg hens is shown, and also in relative aspect the spectrum and frequency of exhibiting of hereditary anomalies in subpopulations of hens of common use is determined. The certain genetic formulas of colour of a plumage of trial subpopulations of meat-egg hens enable to plan effectively creating on their base of auto sexing crosses for reception of the hybrids marked on a sex. The made subpopulations of a bird also can be used as lines-analyzers for a genetic research of colour of a plumage of other breeds and populations of hens, and offered auto sexing hybrids – as modelling objects for carrying out of scientific researches,in particular by definition of a differential mortality of males and females during an embryogenesis. The received data in the integrated kind are shown in the genetic passport which complementary displays genetic structure of trial subpopulations of the seventh generation and is a basic point for the accelerated improvement of productive and adaptive attributes of a bird of common use. The sphere of application: fundamental and applications genetics, selection.