Table 7.

Effect of incremental dietary energy density during late gestation and lactation on pig BW and ADG from days 26 to 141 of age, and pig ADFI and FCE from days 40 to 141 of age

Dietary treatment	LL	L	H	HH
MJ DE/kg	13.8	14.5	15.2	15.9	SEM	P-value1
Number of pigs	78	78	78	78
Pig BW, kg
Day 262	7.5	6.8	7.3	7.3	0.35	0.55
Day 33	8.8	8.2	8.6	8.7	0.35	0.71
Day 40	11.8	11.1	11.4	11.7	0.35	0.52
Day 54	18.8	18.2	18.7	18.3	0.35	0.64
Day 752	32.9	32.4	32.9	32.5	0.36	0.62
Day 1412	103.1	103.1	105.3	102.2	1.20	0.32
Pig ADG, g/d
Days 26 to 75	509	512	517	510	10.6	0.93
Days 75 to 141	1,179	1,186	1,201	1,163	14.2	0.31
Pig ADFI, g/d3
Days 40 to 75	900	882	902	881	15.0	0.67
Days 75 to 141	2,413	2,389	2,405	2,357	32.1	0.63
Pig FCR, g/g3
Days 40 to 141	1.52	1.47	1.51	1.51	0.024	0.50
Days 75 to 141	2.06	2.02	2.01	2.04	0.017	0.22

ADFI, average daily feed intake; ADG, average daily gain; FCE, feed conversion efficiency.

¹Treatements with different superscript letters within a row are considered significantly different at P < 0.05 and as tendencies at P > 0.05 but less than P < 0.10.

²Day 26 = weaning; Day 75 = pig age at transfer from the weaner accommodation to finisher accommodation; Day 141 = average pig age at slaughter.

³ADFI and FCE could not be calculated between days 26 and 40 of age as individual pig feed intake data were not available during this period. Therefore, values for ADFI and FCR are calculated between day 40 of age and slaughter.