Effects of dietary tryptophan and stocking density on the performance, meat quality, and metabolic status of broilers

Table 3 Effects of stocking density and tryptophan level on breast meat quality of broilers ¹

Stocking density, birds/m²	Tryptophan level, %	Body weight, kg	Breast muscle
Stocking density, birds/m²	Tryptophan level, %	Body weight, kg	Yield, %	Fat content, %	pH₄₅²	Drip loss, %
Stocking density × tryptophan level
11.0	0.18	1.87	14.25	0.79	6.07	9.17
11.0	0.27	1.98	14.82	0.69	6.11	8.50
15.4	0.18	1.87	15.45	0.66	6.16	11.60
15.4	0.27	1.82	14.43	0.67	6.13	8.16
SEM		0.228	1.083	0.121	0.195	2.502
Stocking density
11.0		1.93	14.54	0.74	6.09	8.84
15.4		1.85	14.94	0.66	6.14	9.63
SEM		0.046	0.173	0.025	0.040	0.511
Tryptophan level
0.18%		1.87	14.85	0.73	6.11	10.14
0.27%		1.90	14.62	0.68	6.12	8.33
SEM		0.046	0.173	0.025	0.040	0.511
P Value
Stocking density		0.405	0.356	0.130	0.533	0.425
TRP level		0.745	0.599	0.351	0.907	0.077
Density × TRP		0.405	0.077	0.302	0.710	0.258

ISSN: 2049-1891