Published in Scientific Papers. Series D. Animal Science, Vol. LXIV, Issue 1
Written by Aleksandra KONSTANDOGLO, Valentin FOKSHA, Gregory MORAR, Vasily KURULYUK
There are presented the results of studies of the exterior and economically useful characteristics of first calf heifers of the local generation of the Holstein breed, bred in a herd of Joint-Stock Company “Aydyn”, Komrat, Administrative and Territorial Unit Gagauzia, Republic of Moldova. The bone index in comparison with the standard turned out to be on average 8.3% lower, which is due to the high height at the withers of Holstein cows. Comparative analysis of milk productivity of daughters of various bulls showed that milk yield for 305 days of lactation of daughters of bull Forms 999 is 155 kg more milk than that of daughters of bull Kiperush 79. Realization of the genetic potential of first-calf heifers of local selection was at the level of 91.4-92.1% of the productivity of full-aged cows, with a fat content of 3.82- 3.89%. The relationship between the milk yield and the percentage of fat in the milk of the daughters of the analyzed bulls was in a positive correlation from the weak (+0.034, daughter of Kiperush 79), to moderate (+0.369, daughter of Forms 999).
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