Table 11.

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

Variable	Weaning				Growing				Finishing
	Control	Proteases	P-value	% increment	Control	Proteases	P-value	% increment	Control	Proteases	P-value	% increment
Number of animals	23	23			83	83			168	168
Dosage of Enzyme in the diet, (g/kg)	0.001 ± 0.06	0.25 ± 0.06	0.01		0.01 ± 0.05	0.16 ± 0.05	0.03		0.001 ± 0.04	0.28 ± 0.04	0.01
Dosage of Enzyme in the diet, (g/d)	0.001 ± 0.18	0.12 ± 0.17	0.14		0.005 ± 0.17	0.31 ± 0.18	0.04		0.001 ± 0.12	0.71 ± 0.12	0.02
Dosage of Enzyme in the diet, (g/kg LW0.75)	0.002± 0.01	0.03 ± 0.01	0.84		0.001 ± 0.01	0.03 ± 0.01	0.90		0.001 ± 0.01	0.04 ± 0.01	0.02
Initial body weight, (kg)	7.1 ± 16.3	7.1 ± 16.3	0.98	0.0	29.2 ± 11.6	26.5 ± 11.6	0.70	−9.2	41.3 ± 8.2	47.3 ± 8.1	0.78	14.5
Average Daily Feed lntake, (kg/d)	0.72 ± 0.43	0.71 ± 0.43	0.94	−2.7	1.86 ± 0.30	1.83 ± 0.30	0.93	−1.6	2.72 ± 0.21	2.55 ± 0.21	0.91	−6.2
Average Daily Gain, (kg/d)	0.22 ± 0.08	0.32 ± 0.07	0.54	45.4	0.81 ± 0.05	0.83 ± 0.05	0.90	2.5	0.88 ± 0.04	0.88 ± 0.05	0.99	0.0
Gain: Feed, (kg/kg)	0.30 ± 0.03	0.47 ± 0.07	0.21	56.7	0.44 ± 0.02	0.46 ± 0.02	0.87	4.5	0.31 ± 0.02	0.34 ± 0.02	0.88	9.7

% increment compared with the control group.