. 2021 Jan 19;9(3):1530–1541. doi: 10.1002/fsn3.2126

TABLE 4.

Statistical mean (±SEM) of duodenum characteristics at the 42nd day of age in Ross 308 broilers affected by four different additive levels of green tea and two different durations of its usage^*

Treatment	Trait	Duodenum weight (g)	Relative weight of duodenum (%)	Duodenum length (mm)	Duodenum width (mm)	Duodenum diameter (mm)
Use duration (day)	21	21.296^a	0.774^a	39.457^a	6.182^a	0.318^a
Use duration (day)	42	20.577^a	0.769^a	33.327^a	6.277^a	0.367^a
p		.555	.887	.118	.849	.354
SEM (Standard Error of Mean)		0.843	0.026	2.621	0.348	0.036
Green tea powder level (%)	0.25	20.267^a	0.751^a	37.898^a	6.687^a	0.320^ab
	0.50	22.053^a	0.801^a	34.500^a	6.067^a	0.410^a
	0.75	19.732^a	0.710^a	32.178^a	5.777^a	0.240^b
	1.00	21.695^a	0.824^a	40.992^a	6.387^a	0.398^ab
p		.476	.159	.384	.599	.111
SEM (Standard Error of Mean)		1.192	0.036	3.707	0.492	0.051
Duration (0 days)‐ level (0%)		19.930^a	0.705^ab	33.333^ab	6.597^a	0.373^a
Duration (21 days)‐ level (0.25%)		21.550^a	0.821^ab	42.797^ab	5.857^a	0.270^a
Duration (42 days)‐ level (0.25%)		18.983^a	0.681^b	33.000^ab	7.517^a	0.370^a
Duration (21 days)‐ level (0.50%)		20.597^a	0.720^ab	33.333^ab	5.900^a	0.347^a
Duration (42 days)‐ level (0.50%)		23.510^a	0.882^a	35.667^ab	6.233^a	0.473^a
Duration (21 days)‐ level (0.75%)		19.907^a	0.709^ab	33.140^ab	6.257^a	0.243^a
Duration (42 days)‐ level (0.75%)		19.557^a	0.711^ab	31.217^b	5.297^a	0.237^a
Duration (21 days)‐ level (1.00%)		23.130^a	0.846^ab	48.557^a	6.713^a	0.410^a
Duration (42 days)‐ level (1.00%)		20.260^a	0.802^ab	33.427^ab	6.060^a	0.387^a
p		.521	.171	.281	.634	.361
SEM (Standard Error of Mean)		1.649	0.057	4.944	0.716	0.074

Means (±standard error of means) within each column of dietary treatments with no common superscript differ significantly at p < .05.