Sliusarenko V. Justification of the Efficiency of Using Togenburg Bucksfor Breeding Local Population Goats under the Conditions of Southern Ukraine

The experimental research and theoretical developments presented in the dissertation are devoted to a comprehensive study of the biological characteristics and economically useful traits in young animals obtained by crossing Togenburg bucks with local population dairy-type goats, including Saanen, Alpine, and Corsican breeds. The research also addresses methods for increasing the live weight of kids from birth to 20 days of age, as well as peculiarities of their growth, development, and dairy and meat qualities.The experimental studies aimed to determine the effects of crossbreeding on the development level of quality indicators in the offspring. The experiments were conducted at LLC “Rozdilnianske” in Rozdilna district, Odesa region. For the research, three groups of 20 does (Saanen, Alpine, and Corsican breeds from the local population) were formed using the analogue group method. All does were bred with Togenburg bucks using a harem mating system. The productivity of the does and bucks was within the average range for their respective breeds. Our research established that the highest milk productivity (milk yield) was recorded in crossbred does obtained from crossing Saanen does with Togenburg bucks 724.03±22.19 kg, while the lowest yield was observed in offspring of Corsican does 573.4±15.171 kg. In terms of milk fat and protein content, the advantage was also noted in Saanen-crossed offspring – by 1.12 absolute percentage points in fat content (P>0.95), and by 0.22 absolute percentage points in protein content (P>0.95) compared to Corsican-crossed peers.