Asian-Australasian Journal of Animal Sciences

Asian Australasian Association of Animal Production Societies (아세아태평양축산학회)
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Relationship of Somatic Cell Count and Mastitis: An Overview

  • Sharma, N. (Division of Veterinary Clinical Medicine and Jurisprudence, SKUAST-J) ;
  • Singh, N.K. (Division of Veterinary Clinical Medicine and Jurisprudence, SKUAST-J) ;
  • Bhadwal, M.S. (F.V.Sc, SKUAST-J)
  • Received : 2010.06.27
  • Accepted : 2010.10.29
  • Published : 2011.03.01
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Abstract

Mastitis is characterized by physical, chemical and bacteriological changes in the milk and pathological changes in the glandular tissue of the udder and affects the quality and quantity of milk. The bacterial contamination of milk from the affected cows render it unfit for human consumption and provides a mechanism of spread of diseases like tuberculosis, sore-throat, Q-fever, brucellosis, leptospirosis etc. and has zoonotic importance. Somatic cell count (SCC) is a useful predictor of intramammary infection (IMI) that includes leucocytes (75%) i.e. neutrophils, macrophages, lymphocytes, erythrocytes and epithelial cells (25%). Leucocytes increase in response to bacterial infection, tissue injury and stress. Somatic cells are protective for the animal body and fight infectious organisms. An elevated SCC in milk has a negative influence on the quality of raw milk. Subclinical mastitis is always related to low milk production, changes to milk consistency (density), reduced possibility of adequate milk processing, low protein and high risk for milk hygiene since it may even contain pathogenic organisms. This review collects and collates relevant publications on the subject.

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References

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