مقارنة الأداء المظهري لصفات الحليب الكيميا-فيزيائية في النعاج العواسية

Abstract EN

Data were analyzed of 2 Awassi flocks for 2 productive seasons 2010-2011 to estimate the productivity of each flock of milk, it’s 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.