A COMPARISON OF PHENOTYPIC PERFORMANCE OF MILK CHEMO-PHYSICAL PROPERTIES IN AWASSI EWES

Data were analyzed of 2 Awassi flocks for 2 productive seasons 2010-2011 to estimate the productivity of each flock of milk, its components, physical traits and phenotypic relations between them. The results revealed a highly significant effects (p 0.01) for location on daily milk yield (DMY), somatic cell count (SCC) and conductivity (CON). There were a highly significant effects (p 0.01) for year on (DMY), protein (PRO), lactose (LAC) and solids non fat (SNF) percentage, (SCC), density (DEN) and (CON). There were a highly significant effects (p 0.01) for the interaction between location and year on (DMY), (PRO), (LAC), (SCC) and (CON), and significant effects (p 0.05) on (SNF), (DEN) and freezing point, whereas the effects of all studied factors were non significant on fat percentage. Phenotypic correlation estimates between studied milk traits were mostly highly significant (p 0.01) between positive and negative, and the others were significant (p 0.05), while the others were non significant.