A β-karotin és más vitaminok parenterális adagolásának hatása ovsynch módszerrel hormonkezelt tejhasznú tehenek vemhesülésére

Abstract

We would like to know do parenteral received β-carotene, A, D, E and B vitamins increase the pregnancy rate of ovsynch synchronized diary cows. We prepared an experiment with 123 dairy cows in Hungary, in Borsod-Abaúj-Zemplén county in a diary farm.