Fig. 2.

(A) Growth rate plotted versus feeding rate (crickets per day) in experimentally treated juvenile S. undulatus; n = 10 in females, n = 9 in males. Growth rate was significantly decreased by T in juveniles of both sexes after accounting for the effect of feeding rate. See Results section “Juveniles” under the heading Growth and food consumption for statistical details. (B) Relative expression of hepatic IGF-1 mRNA plotted versus feeding rate in experimentally treated juvenile S. undulatus. Expression increased with increasing feeding rate and was significantly reduced by T in females and in castrated males. Symbols and lines as in Panel A; n = 9 in all groups. See Results section “Juveniles” under Hepatic IGF-1 mRNA and plasma IGF-1for statistical details.