Effects of Dietary Yeast Cell Wall Polysaccharides Supplementation to Late Gestation and Lactation Diets on Reproductive Performance and Blood Profiles of Sows and Their Offspring

摘要

This study was conducted to determine the effects of yeast cell wall polysaccharides(YCWP) on reproductive performance, serum profiles and milk composition during late gestation and lactation. A total of 96 sows(Landrace × Yorkshire) were blocked on a basis of breed, parity(2-3)and their respective d 85 of gestation, and then randomly allotted to the following three dietary treatments: CON(basal diet, treatment 1), YCWP1(CON+0.2% YCWP, treatment 2) and YCWP2(CON+0.4% YCWP, treatment 3). The experiment lasted from d 85 of gestation to weaning(d 21 of lactation). Sows fed YCWP diets had lower backfat thickness reduction from postpartum to weaning( P0.05). The supplementation of YCWP decreased(P0.05) alkaline phosphatase(ALP), total protein(TP),albumin(ALB), globulin(GLB), glucose(GLU), total cholesterol(TC), triglyceride(TG) or immunoglobulin G(IgG) in the sow serum. The serum IgG of piglets was increased by the YCWP. The levels of serum ALT and AST were reduced(P<0.05) for suckling piglets in YCWP treatments. Taken together, the results of current studies might indicate beneficial effects of YCWP supplementation to late gestation and lactation diets on the sow productivity by improving litter weight at weaning, reducing backfat loss, and increasing serum IgG concentrations of piglets.