RUSSELL L E, CROMWELL G L, STAHLY T S. Tryptophan, threonine, isoleucine and methionine supplementation of a 12% protein, lysine-supplemented, corn-soybean meal diet for growing pigs[J]. Journal of Animal Science, 1983, 56(5):1115-1123.
[2]
WAHLSTROM R C, LIBAL G W, THALER R C. Efficacy of supplemental tryptophan, threonine, isoleucine and methionine for weanling pigs fed a low-protein, lysine-supplemented, corn-sunflower meal diet[J]. Journal of Animal Science, 1985, 60(3):720-724.
[3]
MYER R O, BRENDEMUHL J H, BARNETT R D. Crystalline lysine and threonine supplementation of soft red winter wheat or triticale, low-protein diets for growing-finishing swine[J]. Journal of Animal Science, 1996, 74(3):577-583.
[4]
FIGUEROA J L, LEWIS A J, MILLER P S, et al. Growth, carcass traits, and plasma amino acid concentrations of gilts fed low-protein diets supplemented with amino acids including histidine, isoleucine, and valine[J]. Journal of Animal Science, 2003, 81(6):1529-1537.
[5]
TREVISI P, MELCHIOR D, MAZZONI M, et al. A tryptophan-enriched diet improves feed intake and growth performance of susceptible weanling pigs orally challenged with Escherichia coli K88[J]. Journal of Animal Science, 2009, 87(1):148-156.
[6]
GUZIK A C, MATTHEWS J O, KERR B J, et al. Dietary tryptophan effects on plasma and salivary cortisol and meat quality in pigs[J]. Journal of Animal Science, 2006, 84(8):2251-2259.
[7]
LE FLOC’H N, MELCHIOR D, SVE B. Dietary tryptophan helps to preserve tryptophan homeostasis in pigs suffering from lung inflammation[J]. Journal of Animal Science, 2008, 86(12):3473-3479.
[8]
LI Y Z, KERR B J, KIDD M T, et al. Use of supplementary tryptophan to modify the behavior of pigs[J]. Journal of Animal Science, 2006, 84(1):212-220.
[9]
GUZIK A C, SOUTHERN L L, BIDNER T D, et al. The tryptophan requirement of nursery pigs[J]. Journal of Animal Science, 2002, 80(10):2646-2655.
[10]
BURGOON K G, KNABE D A, GREGG E J. Digestible tryptophan requirements of starting, growing, and finishing pigs[J]. Journal of Animal Science, 1992, 70(8):2493-2500.
EDER K, NONN H, KLUGE H, et al. Tryptophan requirement of growing pigs at various body weights[J]. Journal of Animal Physiology and Animal Nutrition, 2003, 87(9/10):336-346.
[13]
GUZIK A C, SHELTON J L, SOUTHERN L L, et al. The tryptophan requirement of growing and finishing barrows [J]. Journal of Animal Science, 2005, 83(6):1303-1311.
YI X W, ZHANG S R, YANG Q, et al. Influence of dietary net energy content on performance of growing pigs fed low crude protein diets supplemented with crystalline amino acids[J]. Journal Swine Health Producation, 2010, 18(6):294-300.
[18]
FIGUEROA J L, LEWIS A J, MILLER P S, et al. Nitrogen metabolism and growth performance of gilts fed standard corn-soybean meal diets or low-crude protein, amino acid-supplemented diets[J]. Journal of Animal Science, 2002, 80(11):2911-2919.
[19]
BELLEGO L, MILGEN L V, NOBLET J, et al. Effect of high temperature and low-protein diets on the performance of growing-finishing pigs[J]. Journal of Animal Science, 2002, 80(3):691-701.
ETTLE T, ROTH F X. Specific dietary selection for tryptophan by the piglet[J]. Journal of Animal Science, 2004, 82(4):1115-1121.
[22]
JANSMAN A J M, VAN DIEPEN J Th M, MELCHIOR D. The effect of diet composition on tryptophan requirement of young piglets[J]. Journal of Animal Science, 2010, 88(3):1017-1027.