A comparison of milk somatic cell count between industrial and traditional dairy farms in Tehran province
Message:
Abstract:
In this study، somatic cell counts (SCC) of milk were determined in six industrial and traditional dairy farms in Tehran province during different seasons. The prevalence of udder disorders and mastitis was estimated on the base of SCC as an indicator as well. In this research، industrial and traditional dairy farms during 9 months were studied by total 32620 SCC records. Milk samples were collected individually. Least square mean (±standard error) (n×1000 per ml) in industrial and traditional culture systems were 80. 11 (±12. 60) and 234. 57 (±12. 97)، respectively. The SCC in traditional dairy farms was approximately 2. 9 times higher than those of industrial ones (P<0. 05). The highest SCC was found in summer that was statistically different from spring and autumn (P<0. 05). In industrial dairy farms، subclinical and clinical mastitis were estimated to 36. 6 and 11. 8%، respectively. The corresponding values for traditional ones were 59. 6 and 34. 7%، respectively. The results showed that if the SCC decreases by a half، mastitis disease incidence would be reduced up to 30-50 percent.
Language:
Persian
Published:
Journal of Animal Productions, Volume:15 Issue: 1, 2013
Pages:
21 to 29
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