Dynamics Affect Nitrogen Retention, Ileal Amino Acid Digestibility, and Gene Expression Levels of Digestive Enzymes at Three Stages in Pigs Fed Two Levels of Low-Protein Diets
Abstract:This study was conducted to determine the dynamic effects of dietary crude protein (CP) intake on nitrogen (N) balance, ileal amino acid digestibility, and gene expression levels of digestive enzymes at three stages in pigs. In Experiment 1, 18 growing pigs (average body weight (BW) = 9.5 kg) were randomly assigned to one of three treatments (n = 6/treatment group), including normal (20% CP), low (17% CP), and very low (14% CP) protein intake. In Experiment 2, 18 growing pigs (average BW = 30 kg) were allotted… Show more
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