Agriculture Reference
In-Depth Information
Table 16.4. Effects of supplementing sow diets with conjugated linoleic acid (CLA) during lactation on IgG
levels in colostrum and immunological variables in serum of sows and their piglets (Bontempo
et al
., 2004).
Lactation day
0
2
10
20
Sows
Colostrum IgG, g/l
Control
33.59
a
49.44
b
CLA
Serum IgG, g/l
Control
10.78
a
14.98
a
17.41
a
20.85
b
21.33
b
25.06
b
CLA
Serum lysozyme, mg/l
Control
0.996
a
1.398
a
1.462
a
1.866
b
2.013
b
2.256
b
CLA
Piglets
Serum IgG, g/l
Control
22.92
a
12.28
a
9.28
a
29.40
b
20.86
b
16.22
b
CLA
Serum lysozyme, mg/l
Control
1.29
a
0.47
0.50
2.19
b
CLA
0.65
0.71
a,b
Means in the same column with different superscripts are significantly different (
P
<0.05).
CLA supplementation increased colostral IgG, IgA and IgM concentrations of sows,
confirming the immunomodulatory role of CLA isomers in pigs (Table 16.5), as described
by Corino
et al.
(2002) and Bontempo
et al.
(2004).
Table 16.5. Colostral IgG, IgA and IgM concentrations in sows given a control diet or a 0.5% conjugated linoleic
acid (CLA) diet from 7 d before parturition to 7 d postpartum (T1), or from 7 d before parturition to weaning
(T2) (Corino
et al
., 2009).
Control
T1
T2
82.6
a
108.0
b
101.4
b
IgG, g/l
11.3
a
18.4
b
21.0
b
IgA, g/l
6.1
a
7.9
b
9.1
b
IgM, g/l
a,b
Means in the same row with different superscripts are significantly different (
P
<0.05).
