. 2016 Sep 9;30(4):486–494. doi: 10.5713/ajas.16.0451

Table 6.

Nitrogen balance after 21 and 90 days of feeding in different groups

Attributes	T₀¹⁾	T₁	T₂	SEM	p value
After 21 days
N intake (g/d)	14.41	16.42	16.91	0.87	0.492
Faecal N (g/d)	3.99	4.33	4.69	0.30	0.669
Urinary N (g/d)	8.69	9.91	9.25	0.64	0.755
N balance (g/d)	1.72^b	2.17^b	2.96^a	0.16	0.010
N balance (% intake)	11.90^b	13.20^b	17.50^a	1.04	0.042
N balance (% absorbed)	16.49^b	17.92^b	24.21^a	1.54	0.040
N balance (g/kg W^0.75)	0.19^b	0.22^b	0.32^a	0.01	0.005
After 90 days
N intake (g/d)	15.20	18.41	17.49	1.03	0.438
Faecal N (g/d)	3.01	3.48	3.95	0.19	0.142
Urinary N (g/d)	10.24	11.80	10.16	0.85	0.699
N balance (g/d)	1.94^b	3.13^a	3.37^a	0.20	0.001
N balance (% intake)	12.79^a	17.10^ab	19.25^a	1.07	0.04
N balance (% absorbed)	15.95^b	20.98^ab	24.88^a	1.39	0.074
N balance (g/kg W^0.75)	0.20^b	0.32^a	0.35^a	0.02	0.020

SEM, standard error of the mean; N, nitrogen.

¹⁾

T₀, control group; T₁, tea seed supplemented group; T₂, tea saponin supplemented group.

^ab

Means values bearing different superscripts in a row differ significantly (p<0.05).