Effect of High Dietary Tryptophan on Intestinal Morphology and Tight Junction Protein of Weaned Pig

Table 3

Effect of dietary tryptophan on pigs growth performance.

Item	Dietary L-tryptophan
	ZTS	LTS	HTS	SEM	P value
Initial BW, Kg	8.26	8.25	8.26	0.15	0.62
Final BW, Kg	14.54	14.89	15.53	0.49	0.46
ADG, g
d0– d7	321.43	298.21	285.71	15.36	0.40
d7– d14	244.64	264.29	273.81	22.00	0.63
d14–d21	330.36	385.71	450.00	28.46	0.12
d1–d21	298.81	316.07	336.51	18.61	0.46
AFI, g
d0–d7	464.29	419.64	405.36	00.00	00.00
d7–d14	496.43	500.00	497.62	25.59	0.96
d14–d21	671.43	703.57	726.19	31.25	0.53
d1–d21	544.05	541.07	562.36	18.16	0.67
Gain: feed
d0–d7	0.69	0.71	0.62	0.04	0.33
d7–d14	0.49	0.54	0.53	0.02	0.48
d14–d21	0.49	0.52	0.62	0.03	0.16
d1–d21	0.54	0.58	0.59	0.02	0.55

ZTS: zero Trp supplementation (0.00% Trp); LTS: low Trp supplementation (0.15% Trp); HTS: high Trp supplementation (0.75% Trp).