. 2020 Apr 12;34(6):1049–1060. doi: 10.5713/ajas.19.0885

Table 2.

Gross response of birds on diets containing different levels of phytase, xylanase, and β-glucanase fed between hatch and 35 d of age

Enzymes levels			FI (kg/bird)	BWG (kg/b)	FCR
Phytase	Xylanase	β-glucanase	1–35 d	1–35 d	1–35 d
None	None	None	3.56	2.37	1.50^a
	Optimum	None	3.33	2.41	1.38^abc
	None	Optimum	3.57	2.43	1.47^ab
	Optimum	Optimum	3.36	2.43	1.39^abc
Low	None	None	3.62	2.47	1.46^ab
	Optimum	None	3.54	2.51	1.41^abc
	None	Optimum	3.62	2.48	1.46^ab
	Optimum	Optimum	3.45	2.59	1.33^c
Superdose	None	None	3.55	2.51	1.42^abc
	Optimum	None	3.34	2.53	1.32^c
	None	Optimum	3.54	2.39	1.48^ab
	Optimum	Optimum	3.46	2.53	1.37^bc
SEM			24.60	15.20	0.009
Main effects
None			3.46	2.41^b	1.43
Low			3.56	2.51^a	1.42
Superdose			3.47	2.49^ab	1.40
	None		3.58^a	2.44^b	1.46^a
	Optimum		3.41^b	2.50^a	1.37^b
		None	3.49	2.47	1.42
		Optimum	3.50	2.47	1.42
Source of variation
Phytase			0.17	0.02	0.13
Xylanase			0.001	0.05	0.001
β-glucanase			0.85	0.82	0.98
Phytase × xylanase			0.71	0.62	0.93
Phytase × β-glucanase			0.64	0.29	0.03
Xylanase × β-glucanase			0.84	0.38	0.53
Phytase × xylanase × β-glucanase			0.65	0.46	0.27

Values are means of 6 replicates (9 birds from each cage).

FI, feed intake; BWG, body weight gain; FCR, feed conversion ratio (kg feed:kg body weight gain); SEM, standard error of means.

^a–c

Mean values with different superscripts within the columns are different (p<0.05).