Assessment of the Efficacy of L-Lysine Sulfate vis-à-vis L-Lysine Hydrochloride as Sources of Supplemental Lysine in Broiler Chickens
Table 4
Serum metabolites in broiler chickens fed diets supplemented with L-lysine.HCl and L-lysine sulfate.
Measurements1
Source of supplemental lysine
SE
Significance ( value)
Day
Control
L-lysine.HCl
L-lysine sulfate
Diet
Day
Diet-day
Total protein g/L
0
44.7
44.5
44.8
40
36.1
38.2
34.8
Trial mean
40.4
41.4
39.8
0.89
.634
.0001
.623
Albumin g/L
0
28.3
28.9
28.7
40
18.3
18.8
14.5
Trial mean
23.3
23.9
23.6
1.01
.618
.0001
.623
Globulin g/L
0
14.4
15.5
16.2
40
17.8
19.4
18.9
Trial mean
16.1
17.5
17.5
0.47
.412
.0001
.868
Creatinine mol/L
0
60.8
54.8
57.3
40
62.2
62.5
58.1
Trial mean
61.5
58.3
57.7
3.73
.91
.634
.894
Uric acid mol/L
0
390.8
396.4
394.6
40
321.1
456.9
460.4
Trial mean
360.9
426.7
427.5
9.78
.11
.911
.001
Urea—N m mol/L
0
4.77
4.61
4.61
40
4.88
4.43
2.77
Trial mean
3.83
4.52
3.69
0.27
.91
.634
.894
Glucose m mol/L
0
9.14
8.55
8.85
40
8.17
8.32
8.82
Trial mean
8.66
8.44
8.68
0.21
.112
.241
.762
Cholesterol m mol/L
0
4.48
4.23
4.73
40
3.65
3.81
3.89
Trial mean
3.57
4.05
4.31
0.14
.112
.178
.348
Chloride m mol/L
0
104.3
106.4
105.2
40
101.3
100.9
98.8
Trial mean
102.9
103.7
102.1
0.32
.105
.0001
.088
1Mean value of 10 birds selected at random from the entire flock prior to the start of the experiment and then 10 birds selected randomly from each of the treatment group on day 40. Means bearing dissimilar superscripts varied significantly.
