Table 8.

Effects of supplementing Phytases exogenous enzymes in pig diets at different growing stages on animal performance.

Variable	Weaning				Growing				Finishing
	Control	Phytases	P-value	% Increment	Control	Phytases	P-value	% Increment	Control	Phytases	P-value	% Increment
Number of animals	309	287			367	367			359	359
Dosage of Enzyme in the diet, (g/kg)	0.01 ± 2.51	8.22 ± 2.49	0.03		0.01 ± 2.43	3.32 ± 2.50	0.04		0.005 ± 3.97	0.75 ± 3.91	0.03
Dosage of Enzyme in the diet, (g/d)	0.01 ± 2.00	6.29 ± 2.00	0.01		0.001 ± 2.00	3.51 ± 2.01	0.03		0.001 ± 3.17	1.30 ± 3.14	0.02
Dosage of Enzyme in the diet, (g/kg LW0.75)	0.001 ± 0.34	1.16 ± 0.33	0.001		0.001 ± 0.34	0.40 ± 0.33	0.02		0.002 ± 0.53	0.14 ± 0.54	0.01
Initial body weight, (kg)	9.11 ± 4.99	9.10 ± 4.98	0.83	−0.1	20.69 ± 5.99	20.72 ± 5.98	0.82	0.1	44.95 ± 9.46	39.90 ± 9.43	0.73	−11.2
Average Daily Feed intake, (kg/d)	0.71 ± 0.21	0.71 ± 0.98	0.93	0.0	1.44 ± 0.21	1.47 ± 0.21	0.85	2.1	2.06 ± 0.35	1.97 ± 0.34	0.84	−4.3
Average Daily Gain, (kg/d)	0.42 ± 0.08	0.47 ± 0.07	0.93	11.9	0.68 ± 0.07	0.73 ± 0.08	0.54	7.3	0.78 ± 0.12	0.66 ± 0.12	0.36	−15.4
Gain: Feed, (kg/kg)	0.65 ± 0.04	0.64 ± 0.04	0.96	−1.53	0.47 ± 0.05	0.50 ± 0.05	0.65	6.4	0.40 ± 0.06	0.38 ± 0.12	0.75	−5.0
Digestibility of Dry Matter (g/kg)	839.5 ± 18.6	829.5 ± 18.6	0.53	−1.19	865.5 ± 18.5	858.0 ± 18.6	0.63	−0.1	821.0 ± 26.3	803.0 ± 26.2	0.02	−2.2

% Increment, compared with the control diet.