Estimation of Heritability of Litter Size in Labrador Retrievers and German Shepherd Dogs at The Seeing Eye, Inc. by Gibbs Sampling
E. Hare
Conference Proceedings, 4th International Working Dog Breeding Association, Melbourne, Australia, Vol. 4, pp. 98-102, 2005
Abstract
Used Gibbs sampling on Seeing Eye breeding records, covering 148 Labrador and 172 German Shepherd dams, to estimate litter size heritability at roughly 0.26 to 0.32. Suggests litter size could be increased through selective breeding.