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. 2019 Jul 25;56(3):195–203. doi: 10.2141/jpsa.0180072

Table 7. Effect of dietary feed-grade methionine isomers on incidence of foot pad demerits in 35-day-old broilers.

Diet Thermo-neutral control
Acute heat stress
D-Methionine L-Methionine D-Methionine L-Methionine
Scores1
1 15 23 15 24
2 7 6 8 2
3 8 1 7 4

P value2 0.027 0.039
1

Scores: 1=No lesions, 2=initial lesion, 3=severe lesion

2

Chi-square tests - χ2 for the effect of dietary methionine isomers for each heat stress condition.