This NebGuide describes what somatic cells are, and their significance related to mastitis and milk quality.
Somatic cells are simply animal body cells present at low levels in normal milk.
The epithelial cells are part of the normal body function and are shed and renewed in normal body processes. Milk markets routinely rely on somatic cell counts to help ensure a quality product. SCC levels are monitored to assure compliance with state and federal milk quality standards. Today, most markets pay a premium for low SCC, good-quality milk. Chemical changes in milk composition, due to mastitis, reduce milk quality.