Denysuyk O. The assessments of influence of bulls-sires of different oecogenesis on the animal production at creationg of central type of Ukrainian red milk breed

The object of researches is Forming of milk productivity at the animals of central type of the Ukrainian red milk breed, got from the bulls-producers of Angler and Holstein breed of different oecogenesis. Purpose of researches - to define efficiency of the use of bulls-producers of a different genotype and oecogenesis at creation of central zonal factory type of the Ukrainian red milk breed of cattle. The methods of researches are zootechnic, biometric, statistical. Results of researches: 1. For a theory - the First conducted comparative complex estimation of bulls-producers of a different selection, which were used for creation of central zonal factory type of the Ukrainian red milk breed on pheno- and genotypic by signs. Complex researches of selection signs uterine total got from the bulls of different breeds and oecogenesis number of livestock are conducted. 2. For practice - the algorithm of transmission of heredity on the signs of yield and maintenance of fat in milk at the reproductive crossing of milk cattle is Calculated. The results of researches are got are used for perspective selection program development and plans of selection in the base economies. Sphere of the use - pedigree economies on growing of cattle.