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SAS user's guide
This study was conducted to investigate the effects of different energy and lysine intake on reproductive performance of multiparous sows during late gestation and lactation. Thirty-six sows were allocated to six dietary treatments in a 3×2 factorial arrangement and each treatment had six replicates. Three energy levels and two lysine levels were used during late gestation and lactation. The results demonstrated that higher lysine intake improved (p < 0.05) the body condition of sows during both periods and their reproductive performance during lactation. Both, dietary energy and lysine level had a significant effect (p < 0.05) on the composition of colostrum and milk. In general, dietary treatments had no effect on blood metabolites and hormones. These results suggest that energy levels recommended by the National Research Council (1998) for sows are enough; however, higher lysine levels than those recommended could improve reproductive performance during late gestation and lactation in multiparous sows.
Archives of Animal Nutrition – Taylor & Francis
Published: Feb 1, 2008
Keywords: energy; lysine; gestation; lactation; sows
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