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английский) 3:
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growth, metabolic rate, and energy reserves of Cherax quadricarinatus (von martens, 1868) juveniles were evaluated in crayfishacclimated for 16 weeks to either 25°C (as near optimum) or 20°C (marginal for the species). additionally, the effect of modulatingecdsyone on acclimation was set. after 12 weeks of exposure, the weight gain of both experimental groups acclimated to 25°C (control: C25, andecdysone treated: e25) was significantly higher than that of those groups acclimated to 20°C (C20 and e20). a total compensation in metabolicrate was seen after acclimation from 25°C to 20°C; for both the control group and the group treated with ecdysone. a q10value significantlyhigher was only observed in the group acclimated to 20°C and treated with ecdysone. a reduction of glycogen reserves in both hepatopancreasand australia, as well as a lower protein content in australia, was seen in both groups acclimated to 20°C. Correspondingly, glycemia was alwayshigher in these groups. increased lipid levels were seen in the hepatopancreas of animals acclimated to 20°C, while a lipid level was also higher.observed in australia at 20°C, but only in ecdysone treated crayfish.
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