Factors affecting production performance of sirohi goats under field conditions

The present investigation was conducted to study the production performance of Sirohi goats under field conditions. The overall least-squares means for production traits 90 days milk yield (90 DMY), 150 days milk yield (150 DMY), total milk yield (TMY), lactation length (LL) and dry period (DP) were 61.79 ± 2.48 lit., 90.96 ± 2.58 lit., 91.08 ± 2.56 lit., 150.75 ± 0.72 days and 151.63 ± 14.25 days respectively. Sire, cluster and year of birth had highly significant (P≤0.01) effect on all lactation traits. Season of birth had highly significant (P≤0.01) effect on all lactation traits except on dry period. Parity had highly significant (P≤0.01) effect on all lactation traits except on lactation length. Regressions of dam’s weight at kidding were positive and highly significant (P≤0.01) effect on all lactation traits except on lactation length. Heritability estimate of all production traits were medium to high, ranges from 0.391 ± 0.087 for dry period to 0.652 ± 0.101 for 90 days milk yield indicating scope for further improvement through selection and effective management practices.