Published in Scientific Papers. Series D. Animal Science, Vol. LXVIII, Issue 2
Written by Tatiana IVANOVA, Minko ILIEV, Magdalena PETKOVA, Tatiana BOZHANSKA
The study was conducted in 2023 in the village of Palitsi, at the Elena Vaga cow farm. Two groups of animals of the Wagyu breed were formed. The first group was 19 heifers calved in Bulgaria in 2022. The other was 18 female calves born in 2022. The yield of fresh and dry grass mass, botanical composition and chemical analysis of the herbage have been studied. Female calves at three months weighted 95 kg, at 6 months - 178 kg, at 9 months - 225 kg, and at 12 months - 312 kg. In September, February and April, there was a negative increase in cows. The highest positive increase was in May, June and October. The yield of fresh and dry mass with hay maturity was higher than that of pasture maturity. A high percentage of participation in the grain group in the spring was established. Grass plantings in spring were characterized by a lower CB content and a higher NFE, and in hay maturity were higher values of SP, minerals, Ca and better in vitro digestibility of dry matter.
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