408. Liver gene expression in suckled postpartum beef cows maintained on moderate and improved subtropical pasture

Abstract:

The liver is the first organ to receive absorbed nutrients from the splanchnic vasculature1 which places the liver at an important juncture between nutrition, metabolic homeostasis and reproductive function. The best described component of this interface is secretion of IGF-1 by the liver and dependence of ovarian follicular maturation on hepatic-derived IGF-12. The aim in the present study was to ascertain the expression of hepatic genes associated with metabolic regulation in postpartum beef cows maintained on moderate or improved pasture, and with contrasting liveweight and body condition. Multiparous Droughtmaster cows (Bos taurus × Bos indicus) were placed on moderate (MP, n = 7) or improved (IP, n = 7) pasture at 6–7 months of gestation and remained on the treatments after calving. Liver biopsies were taken 6 weeks after calving and gene expression was determined by quantitative PCR using SYBR …

Año de publicación:

2008

Keywords:

Fuente:

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