期刊
AQUACULTURE
卷 302, 期 3-4, 页码 261-264出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.aquaculture.2010.02.025
关键词
Molting; Serotonin; Melatonin; V-organs; Mandibular organs; Eyestalk ablation; Crab
In the present study, we examined the role of serotonin and melatonin on molting of the fresh water edible crab, Oziotelphusa senex senex. Administration of melatonin (10(-7) mol/crab) into intact crabs induced precocious molting in a 28-day experimental period. Injection of serotonin (10(-6) mol/crab) into intact crabs did not result in any change in molting. Significant increase in the weights of the mandibular organs (28.81%) and the Y-organs (42.57%) was observed in melatonin injected intact crabs when compared with control crabs. Bilateral eyestalk ablation (ESX) significantly increased the weights of mandibular organs (32.71%) and Y-organs (48.21%) when compared with intact crabs over a period of 28-days. However, injection of serotonin or melatonin into ESX crabs did not show much variation in the weights of the mandibular organs and the Y-organs when compared with ESX crabs without biogenic amines injections. These results provide the first evidence that melatonin is involved in the control of regulation of growth in a crustacean. (C) 2010 Elsevier B.V. All rights reserved.
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