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KMID : 0894520090130040341
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Development & Reproduction
2009 Volume.13 No. 4 p.341 ~ p.351
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Effects of Serotonin, Ecdysone and HCG on Ovarian Maturation of the Fleshy Prawn, Fenneropenaeus chinensis
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Lee Je-Yong
Kim Dae-Jung
Kim Dae-Hyun
Kim Myung-Hee
Kim Byung-Ki
Lee Bok-Kyu
Han Chang-Hee
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Abstract
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The effects of serotonin (5-hydroxytryptamine, 5-HT), ecdysone (20-hydroxyecdysone, 20-E) and HCG (human chorionic gonadotropin) on the ovarian maturation of the fleshy shrimp, Fenneropenaeus chinensis were investigated. Adult female fleshy shrimps were injected with 5-HT (5㎍/g body weight (BW) or 20 ㎍/g BW), 20-E (5 ㎍/g BW, 10 ㎍/g BW or 20 ㎍/g BW) or HCG (5 IU/g BW or 10 IU/g BW) three times at 5-day intervals and were sacrificed 10 days after the last injection. The effects were compared against an intact control group and sham control group which received the injection of sterile saline solution as a vehicle. 20-E and HCG showed no effectiveness on ovarian maturation in fleshy shrimps. However flesh shrimp given 5-HT of 20 ㎍/g BW showed significant increase in gonadosomatic index (GSI) in early spring. The results suggest that treatment of 5-HT of 20 ㎍/g BW or more is useful approach for the nursery production of the fleshy shrimp, Fenneropenaeus chinensis aquaculture.
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KEYWORD
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F. chinensis, Ovarian maturation, 5-Hydroxytryptamine(5-HT), Ecdysone, HCG
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