Effect of stage of lactation on somatic cell count in sheep milk of Pleven Blackhead breed

Milk secretion in small ruminants present some particularities for cytoplasmatic particles which are shed the milk together with leukocytes and epithelial cells. Therefore, a parameter like somatic cell count is worldwide used as measurement indicator of subclinical mastitis. The aim study was to establish change chemical microbiological characteristics on composition sheep milk, obtained from Pleven Blackhead breed during different stages lactation. It established that varied widely according way animals were raised fed. results described slight increase values total concentration minerals (up 1%) titratable acidity 19 25°T. A decrease solids (19.2-16.6%), fat (8.0-6.2%), protein content (5.8-4.9%) lactation established. analysis showed bacterial progressively decreased, probably due account hygienic conditions, nutrition, environment health status animals. Moreover, changes directly dependent stable, stable/pasture pasture feeding system period.