Abstract
Abstract Fifty-five-day-old gynogenetic grass carp Ctenopharyngodon idella, all females, were administered methyltestosterone through release from silicone elastomer (silastic) intraperitoneal implants during 460- to 656-day treatments in earthen ponds. Gonads of 27 implanted fish were examined; five had testes, nine had bisexual gonads, eight had gonads with no germ cells, and five had underdeveloped ovaries. No male germ cells were detected in the gonads of untreated gynogenetic fish. The successthl sex reversal of gynogenetic grass carp will permit testing of the hypothesis that breeding a functionally sex-reversed male with normal females will produce only female offspring.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
