Table 2.
Item | CON | BPSBM+SDP | BPSBM+FM | BPSBM | SEM | P-value |
---|---|---|---|---|---|---|
BW, kg | ||||||
d 0 | 6.69 | 6.52 | 6.52 | 6.51 | 0.26 | 0.949 |
d 7 | 6.99a | 6.80abx | 6.52cy | 6.60bc | 0.08 | 0.001 |
d 14 | 8.74a | 8.47ab | 7.74b | 8.19ab | 0.24 | 0.035 |
d 21 | 12.47a | 12.18ax | 11.42by | 11.85ab | 0.21 | 0.011 |
d 28 | 16.27x | 16.08xy | 15.12y | 15.86xy | 0.31 | 0.068 |
d 35 | 21.00 | 20.70 | 20.28 | 20.89 | 0.37 | 0.554 |
ADG, kg/d | ||||||
Phase I | 0.06a | 0.04ab | 0.02b | 0.01b | 0.01 | 0.005 |
Phase II | 0.41x | 0.40xy | 0.36y | 0.39xy | 0.02 | 0.091 |
Phase III | 0.60 | 0.59 | 0.62 | 0.64 | 0.02 | 0.168 |
ADFI, kg/d | ||||||
Phase I | 0.12 | 0.11 | 0.10 | 0.11 | 0.01 | 0.129 |
Phase II | 0.50 | 0.49 | 0.46 | 0.51 | 0.02 | 0.139 |
Phase III | 0.92 | 0.92 | 0.94 | 0.95 | 0.03 | 0.843 |
G:F | ||||||
Phase I | 0.27 | 0.02 | −0.16 | −0.19 | 0.16 | 0.170 |
Phase II | 0.80ab | 0.83a | 0.80ab | 0.77b | 0.02 | 0.065 |
Phase III | 0.66 | 0.64 | 0.67 | 0.68 | 0.02 | 0.717 |
Means within a row with different superscripts differ (P < 0.05).
Means within a row with different superscripts differ (P < 0.10).
A total of 239 pigs (6.56 ± 0.87 kg initial BW) in 48 pens (3 barrows and 3 gilts/pen; n = 10 pens/treatment) were used in a 35-d study. Experimental diets were fed from d 0 to 7 (Phase I) and d 8 to 21 (Phase II) after weaning. All pigs received a common Phase III diet from d 22 to 35. CON = control; a corn, soybean meal, whey (25%), FM (7.5%), and SDP (6.5%)–based diet with decreasing inclusion of whey (10%), FM (5%), and SDP (3%) from Phase I to Phase II, respectively. BPSFM+SDP = the CON with BPSBM replacing FM (7.5 and 5% in Phase I and Phase II, respectively). BPSBM+FM = the CON with BPSBM replacing SDP (12 and 8% in Phase I and Phase II, respectively). BPSBM = the CON with BPSBM replacing both FM and SDP (20 and 15% in Phase I and Phase II, respectively).