Reproduction performances and conditions of group-housed non ...

Table 2. Effect of energy intake in early pregnancy upon number of embryos and pregnancy rate (continued)
Refe-
rence
Level in treatments,
MJ ME day -1
7 Ll: 23.6 (P: 7.8 g /BW kg 0.75 )
Lh: 23.6 (P: 13.0 g/BW kg 0.75 )
Hl: 38.4 (P: 7.8 g/BW kg 0.75 )
Hh: 38.4 (P: 13.0 g/BW kg 0.75 ) 3)
8 L: 21.4
H: 34.6
9 L: 22.6
H: 33.9
9 L: 20.6
H: 33.9
10 L: 23.0
M: 29.4
H: 38.4
11 L1: 22.8
L2: 22.8
H: 31.3
N Parity Daily gain, g Ovulation rate Embryo survival,
Number of embryos Pregnancy rate Treatment period
12 0 216a
13.7
%
- 12.2
- 3-15 days a.ma.
12
200a
15.1
12.8
12
758b
14.2
12.4
12
750b
14.8
11.6
91 0 - - 76.4
78.6
- - 0 - 9/10/11 days a.ma.
36
36
34
34
614
634
631
(Litter)
24
22
21
0 400a
700b
0 310a
560b
Gilts &
sows
0 657
760
830
13.6
13.5
13.9 4)
13.9
71.,3a
83.7b
79.1
78.4
9.6a
11.2b
11.0
10.9
- - - 11.6
11.7
11.9
(Litter size)
14.50
14.95
14.95
85.93a
77.35ab
66.96b
12 L: 13
369 Sows -321
- - 14.9a
M: 31
378
285
15.1a
H: 49
364
1000
15.4b
(Litter size)
Note: In some references the level of energy is only reported as DE, in those cases ME is calculated as 0.96*DE (Theil et al. (2002))
Ma: Mating, F: Farrowing, W: Weaning, La: Lactation, A: After
12.25
11.04
9.80
- 3-30 days a.ma.
- 3-24 days a.ma.
85.9
88.4
88.4
(Farrowing rate)
1-28 days a.ma.
- L1: 1-15 days a.ma.
L2: 3-15 days a.ma.
H: 1-15 days a.ma.
86.4
88.5
86.9
(Farrowing rate)
1-28 days a.ma.
a, b, c: Values with different superscripts are significant different (P≤0.05). x,y, z: Values with different superscripts tended to be different (P