Table 7.
Clinical chemistry of broilers fed experimental diets of differing Lys concentrations.1
| Item | Dietary treatments |
Pooled SEM | Model P-value | ||||
|---|---|---|---|---|---|---|---|
| NC | PC | 0.30% LB | 0.90% LB | 1.50% LB | |||
| Albumin, g/dL | 1.1 | 1.1 | 1.1 | 1.0 | 1.1 | 0.02 | 0.142 |
| Calcium, mg/dL | 10.4c | 11.0a,b | 11.2a | 10.9a,b | 10.6b,c | 0.12 | <0.001 |
| Phosphorous, mg/dL | 7.0 | 7.2 | 6.7 | 7.0 | 6.9 | 0.13 | 0.081 |
| Glucose, mg/dL | 228.3c | 248.8b,c | 283.3a | 253.7b | 257.6b | 7.74 | <0.001 |
| Aspartate aminotransferase, U/L | 264.2b | 293.1b | 331.6a,b | 420.9a | 430.2a | 41.91 | 0.011 |
| Creatine phosphokinase, U/L | 11,445c | 17,052b,c | 25,752a,b | 31,954a | 33,551a | 4,823.2 | 0.004 |
| Glutamate dehydrogenase, U/L | 0.8 | 1.3 | 1.0 | 1.5 | 1.3 | 0.23 | 0.208 |
a–cMeans without a common superscript letter differ within a row (P < 0.05).
Abbreviations: LB, Lys biomass; NC, negative control; PC, positive control.
1
Values are least square means derived from 9 to 12 replicate cages allotted with 6 chicks at study initiation. Blood was collected from 1 chick per cage at study conclusion (37 d post-hatch or study day 35) via cardiac puncture immediately postmortem.