J Sai Prasanna
M Gnana Prakash
B R Gupta
M Mahender
Department of Animal Genetics and Breeding, College of Veterinary Science, Sri Venkateswara Veterinary University, Hyderabad - 500 030, India
with the partnership of Livestock Research and rural Development
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
Abstract
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.
Keywords: Gestation period, litter size, litter weight
For further information
The full paper : http://www.lrrd.org/lrrd21/9/pras21142.htm
Comments
CIRAD © 2007 (All rights reserved) - Disclaimer stating - Page updated : 17/09/2009
Sai Prasanna J, Gnana Prakash M, Gupta B R and Mahender M 2009: Genetic study on reproductive traits in crossbred pigs. Livestock Research for Rural Development. Volume 21, Article #142. Retrieved printDate()September 17, 2009.