ESTIMATION OF GENETIC ADDITIVE VARIANCE OF MILK PRODUCTION IN DAIRY ROMANIAN BLACK SPOTTED BREED FROM PESTREŞTI-ALBA FARM
Keywords:
heritability, dairy cow, milk, fat, proteinAbstract
The objective of this study was to estimate the heritability of milk, milk fat and milk
protein productions in Romanian Black Spotted breed cattle from SC Dorin&Sanda
SRL private farm, Petreşti-Alba. A total of 101 lactations cows were used to
estimate heritability variabilites among milk yield (kilograms), fat and protein
content. The data were collected over a period of two years (2006-2007).
Heritabilities were 0.31, 0.68 and 0.73 for milk yield, fat content and protein
content, respectively. Heritabilities were among the limits found in the literature.
Data can be use as a guide for selection to improve milk yield while maintaining fat
and protein contents.
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