Agriculture Reference
In-Depth Information
Table 6.5. Lysine content and amino acid composition of maternal and fetal body protein gain, and of
placenta, uterus, chorioallantoic fluid, udder and milk expressed as a percentage of lysine content (adapted
from NRC, 2012).
Amino acid
Maternal body
Fetal body
Uterus
Placenta + fluid
Udder
Lysine (g/100 g CP)
1
6.74
4.99
6.92
6.39
6.55
Amino acid:lysine × 100
Arginine
105
113
103
101
84
Histidine
47
36
35
42
35
Isoleucine
54
50
52
52
24
Leucine
101
118
116
122
123
Lysine
100
100
100
100
100
Methionine
29
32
25
25
23
Methionine + cysteine
45
54
50
50
51
Phenylalanine
55
60
63
68
63
Phenylalanine + tyrosine
97
102
--
--
--
Threonine
55
56
61
66
80
Tryptophan
13
19
15
19
24
Valine
69
73
75
83
88
1
CP = crude protein
2,000
2,000
A
B
1,600
1,600
1,200
1,200
800
800
400
400
0
0
0
20
40
60
80
100
120
0
20
40
60
80
100
120
2,000
2,000
C
D
1,600
1,600
1,200
1,200
800
800
400
400
0
0
0
20
40
60
80
100
120
0
20
40
60
80
100
120
Day of gestation
Day of gestation
Figure 6.3. Relationship between day of gestation and protein content in the fetal litter (n=12 piglets)
(A), udder (B), placenta and chorioallantoic fluids (C) and empty uterus (D). The symbols (
♦
) represent the
experimentally-derived values and the line represents the predicted relationship (adapted from NRC, 2012).
