Genetic study on reproductive traits in crossbred pigs
Genetic and non-genetic factors on reproductive performances of half-bred and ¾ Large White Yorkshire-desi
crossbred pigs in India
Data on 433 farrowings belonging to half-bred and ¾ Large White Yorkshire-desi
crossbred pigs maintained at Tirupati, India were subjected to least squares analysis to study the effect of genetic and non-genetic factors.
Significant effect of period and season of birth was observed on gestation period, litter size and litter weight at birth and weaning (8 weeks). The least squares mean gestation period was 111.49 + 0.34 days. Mean litter sizes were 6.78 + 0.11 at birth and 6.22 + 0.11 at weaning while the corresponding mean litter weights were 7.53 + 0.12 and 60.77 + 1.00 kg at weaning. Sows farrowing during rainy season had larger and heavier litters than those farrowing in other seasons.