Research on subclinical mastitis and its ethiology in different breeds of cows

Abstract

Detection of subclinical mastitis in five different breeds of cows were done on the territory of a municipality Kljuc, 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.

Prevalence of Subclinical Mastitis in Cows: In and Around Nagpur Region

“…He found 35 percent prevalence of subclinical mastitis. However, Varatanovic et al, (2015) tested 1978 cows from total of 2150 cows by CMT and observed 56.02% (1108 cows) prevalence which was lower than the result of present study. The prevalence of subclinical mastitis in present study was lower than reported by Kurjogi and Kaliwal (2014).…”

“…However, Varatanovic et al, (2015) concluded that CMT represents important diagnostic method in detection of subclinical mastitis in cows and out of 4432 quarters 2166 (48.87%) were found positive to CMT which was higher than the result of present study. According to Bhutto et al, (2012), 507 (53%) quarters out of 960 quarters reported as negative while 192 (20%), 146 (15%), 64 (7%) and 51(5%) quarters as positive for subclinical mastitis detected by CMT.…”

Prevalence and detection of Subclinical Mastitis by California Mastitis Test (CMT) in Dairy Farms of Theni District in Tamil Nadu, India

“…He found that the prevalence of subclinical mastitis in dairy cows was 35%. Varatanovic et al, (2015) and Bonde et al, (2014) reported that 60.00% and 56.02% the prevalence of subclinical mastitis in dairy cows respectively which was higher that of result of present investigation.…”