PHENOTIPIC CORRELATIONS AMONG COUPLE OF CHARACTERS IN DAIRY ROMANIAN BLACK SPOTTED BREED FROM PESTREŞTI-ALBA FARM
Keywords:
milk, fat, protein, yield, correlationsAbstract
Phenotypic correlations among milk yield, fat yield and protein yield were estimated
using an animal model and records of 101 cows enrolled in the SC Dorin&Sanda
SRL farm, Petreşti-Alba. Among the productive traits investigated, the highest
correlation was observed between the milk and fat yields 0.98. Between milk yield
and protein yield coefficient correlation was 0.97, and also 0.97 between fat yield
and protein yield. It was concluded that these phenotypic parameters could be used
for the genetic evaluation of dairy cattle in Romania. Regression coefficients among
the three couple of traits indicate the same high and positive values. The yield traits
(kg) are all positively related.
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