Effects of varying nursery phase-feeding programs on growth performance of pigs during the nursery and subsequent grow-finish phases

Table 4 Growth performance of the growing-finishing pigs which received the varying nursery phase-feeding programs

Item	High¹		Medium²		Low³		P-value
	B⁴	G⁴	B	G	B	G	FP⁴	S⁴	FP × S
BW^4,5, kg
D⁴ 54	16.3 ± 0.5	14.7 ± 0.5	14.4 ± 0.5	12.1 ± 0.5	13.1 ± 0.5	13.6 ± 0.5	<0.01	<0.01	0.03
D 96	38.8 ± 1.0	36.7 ± 0.8	35.1 ± 0.9	36.9 ± 0.9	37.3 ± 0.8	34.0 ± 0.8	0.07	0.10	0.01
D 135	73.1 ± 1.6	67.5 ± 1.5	65.7 ± 1.5	69.3 ± 1.5	67.9 ± 1.3	58.3 ± 1.4	<0.01	<0.01	<0.01
D 182	111.7 ± 3.1	108.4 ± 2.6	108.4 ± 2.7	106.8 ± 2.7	105.4 ± 2.5	93.7 ± 2.5	<0.01	0.01	0.13
ADG^4,5, g
D 54-96	592 ± 24	542 ± 20	503 ± 22	546 ± 22	557 ± 20	477 ± 19	0.07	0.10	0.01
D 96-135	878 ± 29	787 ± 25	787 ± 25	835 ± 26	785 ± 23	634 ± 23	<0.01	<0.01	<0.01
D 135-182	843 ± 43	876 ± 37	909 ± 37	808 ± 37	802 ± 34	756 ± 34	0.04	0.21	0.21
Overall	765 ± 24	739 ± 20	739 ± 21	727 ± 21	716 ± 20	624 ± 20	<0.01	0.01	0.13

¹Provided with the nursery phases 1, 2 and 3 diets for 7, 14 and 12 days, respectively.
²Provided with the nursery phases 2 and 3 diets for 14 and 19 days, respectively.
³Provided with the nursery phases 2 and 3 diets and the high-plane grow-finish phase 1 diet for 7, 14 and 12 days, respectively.
^1-3See Table 1 for nutritional values of the diets. Data are least squares means ± standard errors of means of 14 animals in each sex.
⁴B, barrow; G, gilt; FP, feeding program during the nursery phase; S, sex; BW, body weight; D, day; ADG, average daily gain.
⁵BW on d 54 was included in the model as a covariate in the analysis of subsequent BW and ADG.

ISSN: 2055-0391