Effect of different quantities of nitrates in the ration on the content of beta-carotene and vitamin A in the blood plasma and on the changes in the rumen of young, fattening bulls
RU
Vlijanie razlichnogo kolichestva nitratov v racione na uroven' beta-karotina i vitamina A v plazme krovi, a takzhe na prevrashhenija v rubce otkormochnykh bykov