Research on subclinical mastitis and its ethiology in different breeds of cows
2015
Varatanović, N. (Veterinary Faculty, Sarajevo (Bosnia and Herzegovina)) | Čengić, B. (Veterinary Faculty, Sarajevo (Bosnia and Herzegovina)) | Imširević, E. (Veterinary Faculty, Sarajevo (Bosnia and Herzegovina))
Detection of subclinical mastitis in five different breeds of cows were done on the territory of a municipality Ključ, through all four year seasons by using the California mastitis test, at the level of the udder’s quarter with a certificate of bacteriological findings in order to justify their application in the diagnosis of mastitis. In total, 2150 cows of different breed composition: Simmental 1090, red Holstein 322, Holstein-Friesian 340, montafon 108 and various crossbreeds of 290 in total. After 1978 tested cows, 56.02% of cases had positive reactions to the California mastitis test. The most common positive reaction we found in the milk was in one or two quarters with the intensity of the reaction of one and two plus. The most common causes of mastitis were staphylococci, streptococci and mixed infections. Continuing use of these methods it is possible to timely detect the presence of subclinical mastitis and get satisfactory results in the prevention and treatment of mastitis as well as increasing the quantity and improving the quality of milk.
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