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Concentration of beta-carotene and vitamin A in blood serum of cows in peripartal period / Koncentracija beta-karotina i vitamina a u krvnom serumu krava u peripartalnom periodu
(Fakultet veterinarske medicine, Beograd, Srbija, 2005)
In a herd of high-productive dairy cows of the Holstein breed, 40 cows were selected for an experiment. The animals were chosen at the period of advanced gravidity. Data on mean values of beta-carotene concentrations in ...
Mineral substances: Regulators electrochemical rection of the contens rumen in high yielding dairy cows / Mineralne materije - regulatori elektrohemijske reakcije sadržaja buraga visokomlečnih krava
(Institut za primenu nauke u poljoprivredi, Beograd, 2005)
The contemporary informations about importance and possibilities for maintaining the optimal electrochemical reaction in the organism in high yielding dairy cows were given in this paper. The most important functions were ...