| Literature DB >> 18703307 |
M A Velazquez1, L J Spicer, D C Wathes.
Abstract
Insulin-like growth factor-I (IGF-I) plays a pivotal role in cattle fertility, acting as a monitoring signal that allows reproductive events to occur when nutritional conditions for successful reproduction are reached. However, endocrine IGF-I is not a predictor of reproductive events, but rather an indirect estimator of the suitability of the animal to achieve the reproductive event in question. Although measuring circulating IGF-I concentrations might not have any clinical application in the cattle industry, endocrine IGF-I screening will continue to be important for the study of interactions between nutrition and reproduction. In addition, endocrine IGF-I screening could be used as an ancillary test for the selection of cattle for high reproductive potential, especially in herds of high genetic merit for milk production, in which a decline in fertility has been identified.Entities:
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Year: 2008 PMID： 18703307 DOI： 10.1016/j.domaniend.2008.07.002
Source DB: PubMed Journal: Domest Anim Endocrinol ISSN： 0739-7240 Impact factor: 2.290