Birth weight (BW), weaning weight (WW) and daily gain from birth to weaning (DWG) of 3244 Baluchi sheep lambs were analyzed for estimating the effect of some environmental factors on those traits. Heritabilities, phenotypic and genetic correlations were also estimated using least squares method
The year effect on all mentioned traits was highly significant (P<0.01). Age of dam significantly (P
Heritability estimates (from paternal half-sib lambs) for BW, WW and DEG were 0. 99(±003), 0. 108(±O.03) and 0. 108(±0.03) respectively. Phenotypic and genetic correlations for BW—WW, BW-DWG and WW—DWG were 0.383 and 0.265(±0.21, 0.236 and O.108(±0.23) and 0.988 and 0.987(±0.006) in the same order.
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