Abstracts - Genetics and reproduction

Establishment of the 2012 vitamin D requirements in swine

Dietary treatments of ≥800 IU/kg feed showed beneficial effects for breeding swine in terms of bone mineral content and ultimate strength, decreased number of still born piglets, and greater vitamin D status in comparison with dietary treatments of 200 IU/kg of feed.

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Abstract

Role of interleukin-1β in the regulation of porcine corpora lutea during the late luteal phase of the cycle and during pregnancy

In this study, the influence of IL-1β on secretory activity within the corpora lutea (CL) of cyclic and gravid pigs was determined in vitro during different stages of the CL lifespan.