PubAg

Genomics and metabolomics of post-weaning return to estrus

Author:

Rempel, Lea A., Rohrer, Gary A., Nonneman, Danny J.

Source:

Molecular Reproduction and Development 2017 v.84 no.9 pp. 987-993

ISSN:

1040-452X

Subject:

estrus, farrowing, genomics, genotype, gilts, lactation, metabolomics, phenotype, sows, weaning

Abstract:

The weaning-to-estrus interval is a multifaceted trait that has the potential to substantially improve production efficiency in today’s global swine industry, if variation in this measure can be reduced. Systems-biology approaches should help close the knowledge gap and increase selection tools and management strategies—such as gilt development programs, farrowing, and lactation feeding programs—to decrease the weaning-to-estrus interval. Metabolomics, the study of small compounds within biofluids and tissues, provides links between genotype and phenotype. Given the complexity and influence of the environment on the weaning-to-estrus interval, incorporating metabolomics data will provide valuable insight and guidance for future physiological as well as genetic and genomic strategies to reduce this interval, thereby improving sow productivity.

Agid:

5832865

Handle:

10113/5832865

http://dx.doi.org/10.1002/mrd.22820