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, a variation in the concentration of zinc in blood serum was noted depending on the season. Somatic cell count in the spring and autumn period in average was over 400.000/ml milk. Based on statistical analysis, the correlation test, it was concluded that the concentration of zinc in blood serum of cows in the experimental group had no significant effect on the somatic cells count in milk.
Highlights
Cink je esencijalni element za biljke, životinje i čoveka
Cink kao esecijalni element ima značajnu ulogu u očuvanju intergiteta kože (Sordillo et al, 1997; Tomlison et al, 2004; 2008) i ima uticaja na smanjenje broja somatskih ćelija u mleku krava (Kellogg et al, 2004)
Korišćeni su standardi za cink-AccuTrace Reference Standard, AA70N-1, Lot B9025027
Summary
Davidov I. i dr.: Odnos broja somatskih. ODNOS BROJA SOMATSKIH ĆELIJA U MLEKU KRAVA I KONCENTRACIJA CINKA U KRVNOM SERUMU1*. Davidov Ivana[2], Radinović Miodrag 1, Erdeljan Mihajlo[1], Stančić Ivan 1, Stojanović Dragica[2], Milanov Dubravka[2]
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