AVM volume 5, issue 1, P59-68 2012 DOI: 10.46784/e-avm.v5i1.162 View full text
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Ivana Davidov, Miodrag Radinović, Mihajlo Erdeljan, Ivan Stančić, Dragica Stojanović, Dubravka Milanov

Abstract: The study was conducted on 15 Holstein-Friesian cows aged between 3 and 5 years kept in the free grazing conditions in summer. The samples of milk were taken twice a year for monitoring subclinical mastitis. In addition to milk samples, the blood samples were taken to determine the concentration of zinc in serum. The occurrence of subclinical mastitis in high yielding cows was estimated based on the values of zinc concentration in blood serum and somatic cells of milk. By analyzing the samples of blood serum, …

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