Effects of androgenic gland ablation on growth, sexual characters and spermatogenesis of the white shrimp, Litopenaeus vannamei (Decapoda: Penaeidae) males
保存先:
著者: | , , , |
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フォーマット: | artículo |
出版日付: | 2015 |
その他の書誌記述: | This research was implemented to study the effects of androgenic gland ablation in the white shrimp Litopenaeus vannamei to explore sex reversal potential as an alternative technology for monosex female mariculture based on the sex dimorphic growth of this species. The surgical procedure was applied to male postlarvae (PL) at different ages, after external sex differentiation, as well as in sex undifferentiated PL. Andrectomized males regenerated normal appendices including pereiopods and pleopods; however, body growth and relative size of regenerated petasmas and appendices masculinae were statistically inferior (P ˂ 0.05) to control males. Spermatogenesis in andrectomized males was active, but a phenomenon of degradation of spermatids and reproductive tissues was detected. No sex reversal was accomplished regardless of PL age from sex undifferentiated stages (PL38) to sex differentiated stages (˃PL55). The complete regeneration of sexual characters in andrectomized L. vannamei (Dendrobranchiata) is different from previous reports from Decapoda. |
国: | Repositorio UNA |
機関: | Universidad Nacional de Costa Rica |
Repositorio: | Repositorio UNA |
言語: | Inglés |
OAI Identifier: | oai:https://repositorio.una.ac.cr:11056/17415 |
オンライン・アクセス: | http://hdl.handle.net/11056/17415 |
Access Level: | acceso abierto |
キーワード: | PENAEIDAE CAMARONES ANDROGENIC GLAND LITOPENAEUS VANNAMEI SEX REVERSAL |