Effects of sires with different weight gain potentials and varying planes of nutrition on growth of growing-finishing pigs

Table 3 Growth performance of the pigs born from two groups of sires with high and medium weight gain potentials, respectively, on varying planes of nutrition during the grower phase beginning from August 1 through September 26, 2012

Item	Medium potential			High potential			SEM	Sex			P-value
Item	H¹⁾	M²⁾	L³⁾	H¹⁾	M²⁾	L³⁾	SEM	B⁴⁾	G⁴⁾	SEM	Sr⁴⁾	PN⁴⁾	Sr × PN	S⁴⁾
Initial wt, kg	15.2	15.8	16.0	15.7	16.4	14.3	0.44	15.5	15.6	0.25	0.63	0.11	0.02	0.81
Days on feed
Phase (P) 1	26	27	29	26	27	29
P 2	29	29	28	29	29	28
Final wt, kg
P 1	30.7	30.5	27.6	28.7	29.1	27.0	0.8	28.8	29.0	0.5	0.05	<0.01	0.67	0.77
P 2	51.6	49.7	44.0	49.9	50.4	45.1	1.2	48.8	48.1	0.7	0.96	<0.01	0.46	0.48
ADG
P 1	0.59	0.54	0.40	0.50	0.47	0.44	0.02	0.49	0.49	0.01	<0.01	<0.01	<0.01	0.87
P 2	0.72	0.66	0.59	0.76	0.77	0.64	0.02	0.71	0.67	0.01	<0.01	<0.01	0.27	0.08
Overall	0.66	0.61	0.49	0.63	0.62	0.54	0.02	0.60	0.58	0.01	0.48	<0.01	0.13	0.26

^{1), 2), 3)}H, high plane of nutrition; M, medium plane of nutrition; L, low plane of nutrition. Data are least squares means of 20 animals. Average ADFI for both H, M, and L groups were 1.07, 1.06, and 0.84 kg and 1.78, 1.72, and 2.02 kg during the phases 1 and 2, respectively.
⁴⁾B, barrow; G, gilt; Sr, sire; PN, plane of nutrition; S, sex.

ISSN: 2055-0391