2Kerr B J,Southern L L,Bidner T D,et al.Influence of dietary pro-tein level,amino acid supplementation,and dietary energy levelson growing-finishing pig performance and carcass composition[J].Journal of animal science,2003,81:3075-3087.
8Kerr B J,Easrer R A.Effect of feeding reduced protein,aminoacid-supplemented diets on nitrogen and energy balance ingrower pigs[J].Journal of animal science,1995a,73:3000-3008.
9Tuitoek K,Young L G,de Lange C F M,et al.The effect of excessdietary amino acids on growing-finishing pig performance:anevaluation of the ideal protein concept[J].Joural of animal sci-ence,1997,75:1575-1583.
10Gómez R S,Lewis A J,Miller P S,et al.Growth performance,dietapparent dihestibility,and plasma metabolite concentrations ofbarrows fed corn-soybean meal diets or low-protein,aminoacid-supplemented diets at different feeding level[J].Journalof animal science,2002,80:644-653.
7AOAC.Official Methods of Analysis.M.15th ed.Arlington,VA:Assoc Off Anal Chem.1990.
8Kerr B J,Southern L L,Bidner T D,et al.Influence of dietary protein level amino acid supplementation,and dietary energy levels on growing-finishing pig performance and cstrcass composition[J].Journal of Animal Science,2003,81:3075-3087.
9Knowles T A,Southern L L,Bidner T D,et al.Effect of dietary fiber or fat in low-chide protein,crystalline amino acidsupplemented diets for finishing pigs[J].Journal of Animal Science,1998,76:2818-2832.
10Le Bellego L,Noblet J.Performance and utilization of dietary energy and amino acids in piglets fed low protein diets[J].Livestock Production Science,2002,76.45-58.
