Genetic variation in litter size in the guinea pig and its relationship with pre- and postweaning growth
Malik, R.C.; Kohun, P.J.
Proceedings of the Sixth Conference, Australian Association of Animal Breeding and Genetics, University of Western Australia, Perth, WA, Australia, 9-11 February 1987: 289-292
The hsuperscript 2 of litter size and its genetic correlation with birth weight and weights at 3, 6 and 8 wk were estimated from data on 446 Labu strain guineapigs. Litter size ranged from 1 to 7 (average was 2.7+or-0.06), and hsuperscript 2 was 0.65+or-0.27, estimated from paternal half-sib data. Mean body weight at every age to 8 wk decreased as litter size increased.