The effect of source and level of nitrogen supplementation on feed intake, microbial protein synthesis and nitrogen metabolism in mature heifers fed poor quality hay

(Paul Sebastian Mlay, Apolinaria Pereka, Sakurani Baltazary, Torben Hvelplund, Martin Riis Weisbjerg, Jřrgen Madsen)

Utjecaj izvora i razine dodanog dušika na unos hrane, sintezu mikrobnih bjelanevina i metabolizam dušika kod spolno zrelih junica hranjenih sijenom loše kvalitete