Fig. 2

Effects of Eimeria spp. challenge a and methionine supplementation b on the relative weight of organs of broilers. Results are presented as mean and standard error. a,b Different letters represent significant differences between treatments by the Tukey test, P < 0.05. UC = unchallenged broilers; EC = Eimeria-challenged broilers; NS = non-supplemented diet; dl-Met = diet supplemented with free methionine; dl-MMet = diet supplemented with methionine dipeptide