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Figure 1


Fig. 1. Responses to DMS using the Porter method. Black bar, average response to DMS solution (10 pmol l-1); white bar, response to control solution (water). Values are means ± s.e.m. Differences are significant (Wilcoxon matched-pair sign ranks test, P<0.03, N=22 chicks, 15-20 days old. See text).