Negin Jamali Emam Gheis; Ali Sadeghisefidmazgi; Mohammad Mehdi Moeini
Volume 15, Issue 1 , July 2014, , Pages 21-29
Abstract
In this study, somatic cell counts (SCC) of milk were determined in six industrial and traditional dairyfarms in Tehran province during different seasons. The prevalence of udder disorders and mastitis wasestimated on the base of SCC as an indicator as well. In this research, industrial and traditional ...
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In this study, somatic cell counts (SCC) of milk were determined in six industrial and traditional dairyfarms in Tehran province during different seasons. The prevalence of udder disorders and mastitis wasestimated on the base of SCC as an indicator as well. In this research, industrial and traditional dairyfarms during 9 months were studied by total 32620 SCC records. Milk samples were collectedindividually. Least square mean (±standard error) (n×1000 per ml) in industrial and traditional culturesystems were 80.11 (±12.60) and 234.57 (±12.97), respectively. The SCC in traditional dairy farms wasapproximately 2.9 times higher than those of industrial ones (P<0.05). The highest SCC was found insummer that was statistically different from spring and autumn (P<0.05). In industrial dairy farms, subclinicaland clinical mastitis were estimated to 36.6 and 11.8%, respectively. The corresponding valuesfor traditional ones were 59.6 and 34.7%, respectively. The results showed that if the SCC decreases by ahalf, mastitis disease incidence would be reduced up to 30-50 percent.