|
HP Gr1)
|
MP Gr1)
|
LP Gr1)
| |
P-value
|
---|
Item
|
HP F1), 2)
|
HP F1), 2)
|
LP F1), 3)
|
SEM
|
Gr
|
F
|
S1)
|
Gr × F
|
F × S
|
---|
|
B1)
|
G1)
|
B
|
G
|
B
|
G
| |
---|
Initial wt, kg
|
48.4
|
52.3
|
45.7
|
53.6
|
43.8
|
44.2
|
1.8
|
<0.01
|
<0.01
|
<0.01
|
<0.01
|
0.09
|
Days on feed
| | | | | | | | | | | | |
Phase (P) 1
|
28
|
29
|
28
|
28
|
35
|
36
| | | | | | |
P 2
|
41
|
39
|
42
|
38
|
46
|
45
| | | | | | |
Final wt, kg
| | | | | | | | | | | | |
P 1
|
77.1
|
78.9
|
73.4
|
82.7
|
71.8
|
72.1
|
2.2
|
<0.01
|
<0.01
|
0.03
|
<0.01
|
0.15
|
P 2
|
113.4
|
111.2
|
109.8
|
113.2
|
116.7
|
114.2
|
2.4
|
0.26
|
0.12
|
0.84
|
<0.01
|
0.42
|
ADG
| | | | | | | | | | | | |
P 1
|
1.01
|
0.92
|
0.99
|
1.04
|
0.80
|
0.77
|
0.04
|
<0.01
|
<0.01
|
0.58
|
<0.01
|
0.65
|
P 2
|
0.88
|
0.85
|
0.86
|
0.82
|
0.98
|
0.93
|
0.04
|
<0.01
|
<0.01
|
0.15
|
<0.01
|
1.00
|
Overall
|
0.94
|
0.88
|
0.91
|
0.90
|
0.90
|
0.86
|
0.03
|
0.56
|
0.28
|
0.11
|
<0.01
|
0.71
|
Days to 115 kg
|
184.3
|
182.1
|
190.5
|
178.5
|
192.5
|
196.2
|
3.3
|
<0.01
|
<0.01
|
0.11
|
<0.01
|
0.08
|
Carcass wt, kg
|
84.7
|
85.0
|
83.4
|
84.9
|
88.4
|
84.9
|
2.0
|
0.42
|
0.21
|
0.66
|
<0.01
|
0.22
|
Dressing, %
|
74.6
|
75.9
|
75.9
|
75.0
|
75.7
|
74.4
|
0.8
|
0.90
|
0.70
|
0.61
|
<0.01
|
0.22
|
BFT4), mm
|
25.1
|
22.0
|
25.8
|
20.5
|
25.8
|
26.4
|
1.2
|
0.03
|
0.01
|
0.01
|
<0.01
|
0.03
|
- 1)HP, high plane; MP, medium plane; LP, low plane; Gr, grower; F, finisher; B, barrow; G, gilt; S, sex. Data are least squares means of 10 animals in each plane of nutrition × sex.
- 2)Provided with the HP and MP finisher diets during the finisher phases 1 and 2, respectively (see Table 1). The average ADFI during the phases 1 and 2 were 2.64 and 3.14 kg, respectively.
- 3)Provided with the LP finisher during both phases 1 and 2 (see Table 1). The average ADFI during the phases 1 and 2 for pigs born from both groups of sires with the medium and high (see Table 5) weight gain potentials were 2.89 and 4.10 kg, respectively.
- 4)Average of backfat thickness measurements between the 11 and 12th ribs and at the last rib adjusted for a 115-kg liveweight.