Reproduction in Farm Animals in an Era of Rapid Genetic Change: Will Genetic Change Outpace Our Knowledge of Physiology?
Article first published online: 25 JUL 2012
© 2012 Blackwell Verlag GmbH
Reproduction in Domestic Animals
Special Issue: Proceedings of the 17th International Congress on Animal Reproduction (ICAR)
Volume 47, Issue Supplement s4, pages 313–319, August 2012
How to Cite
Foxcroft, G. (2012), Reproduction in Farm Animals in an Era of Rapid Genetic Change: Will Genetic Change Outpace Our Knowledge of Physiology?. Reproduction in Domestic Animals, 47: 313–319. doi: 10.1111/j.1439-0531.2012.02091.x
- Issue published online: 25 JUL 2012
- Article first published online: 25 JUL 2012
Compared with other domestic species, genetic nucleus selection has gradually increased both prolificacy and productivity of the breeding sow and the post-natal growth performance of commercial progeny. However, increasing variation in litter birth weight and foetal development may be indirect consequences of interactions among multiple genes controlling prolificacy and prenatal development. Phenotypic plasticity in the litter phenotype also results from effects of sow metabolic state on the developing embryo. New genomic tools may provide the opportunity to better balance the selection of genes controlling the component traits affecting the size and quality of litters born, particularly in multiparous sows.