The best families of Ukrainian black-and-white dairy breed in the conditions of leading breeding farms of Podillia

Abstract

In the conditions of breeding farms PE «Radivske» and LLC «Zelena Dolyna» of the AF «Vyla» of Vinnytsia region, families of Ukrainian black-and-white dairy breed were studied. It is established that the families of Roses 127, Luski 1650 and Pava 911are the best one, and they belong to progressive ones by their stability of transfer of hereditary features. The families of Ivolga 1156, Ruta 1483, and Mazuli 2368 belong stably high-productive. When comparing families, Ivolga 1156, Pava 911 and Rosa 127 appeared to be best ones, and they had higher milk yields by 344 kg, 260 and 178 kg, respectively, compared with the average index for all families. As a result of the research, the genealogical homogeneity of families has been determined, which is 88.6—98.2 %, which indicates an increase and consolidation of high milk productivity in the next generations of the descendants.