Induction of sex reversal in longtooth grouper Epinephelus bruneus by implantation of 17-alpha-methyltestosterone cholesterol pellets
Sex reversal from female to male in the six-year-old longtooth grouper Epinephelus bruneus (mean body weight, 3.1 kg) was induced by the implantation of 17-alpha-methyltestosterone (MT) cholesterol pellets. We compared the efficacy of the cholesterol pellets at MT doses of 1 mg/kg BW (group A) and 2...
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| Veröffentlicht in: | NIPPON SUISAN GAKKAISHI 2022/11/15, Vol.88(6), pp.485-493 |
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| container_issue | 6 |
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| container_title | NIPPON SUISAN GAKKAISHI |
| container_volume | 88 |
| creator | CHUDA, HISASHI SUGANO, KOTARO NAKATSUKASA, HIROMU HATTORI, NOBUHIRO KOBAYASHI, YASUHISA MASUMA, SHUKEI |
| description | Sex reversal from female to male in the six-year-old longtooth grouper Epinephelus bruneus (mean body weight, 3.1 kg) was induced by the implantation of 17-alpha-methyltestosterone (MT) cholesterol pellets. We compared the efficacy of the cholesterol pellets at MT doses of 1 mg/kg BW (group A) and 2 mg/kg BW (group B) implanted in February, as well as 2 mg/kg BW implanted in April (group C). At 4 months after the treatment, 67% of the fish in groups A and B had been transformed into males. On the other hand, all fish in group C had been transformed into males at 2 months after the treatment, and all group C fish remained male even at 14 months after the implantation. These results indicate that the implantation of MT cholesterol pellets at a MT dose of 2 mg/kg BW in April is an effective and long-lasting treatment for inducing sex reversal in the longtooth grouper. |
| doi_str_mv | 10.2331/suisan.22-00017 |
| format | Article |
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We compared the efficacy of the cholesterol pellets at MT doses of 1 mg/kg BW (group A) and 2 mg/kg BW (group B) implanted in February, as well as 2 mg/kg BW implanted in April (group C). At 4 months after the treatment, 67% of the fish in groups A and B had been transformed into males. On the other hand, all fish in group C had been transformed into males at 2 months after the treatment, and all group C fish remained male even at 14 months after the implantation. These results indicate that the implantation of MT cholesterol pellets at a MT dose of 2 mg/kg BW in April is an effective and long-lasting treatment for inducing sex reversal in the longtooth grouper.</description><identifier>ISSN: 0021-5392</identifier><identifier>EISSN: 1349-998X</identifier><identifier>DOI: 10.2331/suisan.22-00017</identifier><language>eng ; jpn</language><publisher>Tokyo: The Japanese Society of Fisheries Science</publisher><subject>Body weight ; Cholesterol ; Epinephelus bruneus ; Fish ; Implantation ; Males ; Marine fishes ; Methyltestosterone ; Pellets ; Physical growth ; Sex ; Sex reversal ; Whitefish</subject><ispartof>NIPPON SUISAN GAKKAISHI, 2022/11/15, Vol.88(6), pp.485-493</ispartof><rights>2022 by The Japanese Society of Fisheries Science</rights><rights>Copyright Japan Science and Technology Agency 2022</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c358t-f96a2de0bea2df1b057b7c0d3eaee5c75c9cb6613f2948f9d175f79d57cce3203</citedby><cites>FETCH-LOGICAL-c358t-f96a2de0bea2df1b057b7c0d3eaee5c75c9cb6613f2948f9d175f79d57cce3203</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,27924,27925</link.rule.ids></links><search><creatorcontrib>CHUDA, HISASHI</creatorcontrib><creatorcontrib>SUGANO, KOTARO</creatorcontrib><creatorcontrib>NAKATSUKASA, HIROMU</creatorcontrib><creatorcontrib>HATTORI, NOBUHIRO</creatorcontrib><creatorcontrib>KOBAYASHI, YASUHISA</creatorcontrib><creatorcontrib>MASUMA, SHUKEI</creatorcontrib><title>Induction of sex reversal in longtooth grouper Epinephelus bruneus by implantation of 17-alpha-methyltestosterone cholesterol pellets</title><title>NIPPON SUISAN GAKKAISHI</title><addtitle>NSUGAF</addtitle><description>Sex reversal from female to male in the six-year-old longtooth grouper Epinephelus bruneus (mean body weight, 3.1 kg) was induced by the implantation of 17-alpha-methyltestosterone (MT) cholesterol pellets. We compared the efficacy of the cholesterol pellets at MT doses of 1 mg/kg BW (group A) and 2 mg/kg BW (group B) implanted in February, as well as 2 mg/kg BW implanted in April (group C). At 4 months after the treatment, 67% of the fish in groups A and B had been transformed into males. On the other hand, all fish in group C had been transformed into males at 2 months after the treatment, and all group C fish remained male even at 14 months after the implantation. These results indicate that the implantation of MT cholesterol pellets at a MT dose of 2 mg/kg BW in April is an effective and long-lasting treatment for inducing sex reversal in the longtooth grouper.</description><subject>Body weight</subject><subject>Cholesterol</subject><subject>Epinephelus bruneus</subject><subject>Fish</subject><subject>Implantation</subject><subject>Males</subject><subject>Marine fishes</subject><subject>Methyltestosterone</subject><subject>Pellets</subject><subject>Physical growth</subject><subject>Sex</subject><subject>Sex reversal</subject><subject>Whitefish</subject><issn>0021-5392</issn><issn>1349-998X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kU1LxDAQhoMouKhnrwHP1Xy0SXMUWT9A8KLgLaTpdFvJJjVJxf0B_m-7ruvRy7wM87wzAy9C55RcMs7pVZqGZPwlYwUhhMoDtKC8VIVS9eshWhDCaFFxxY7RWUpDMzOqFJzUC_T14NvJ5iF4HDqc4BNH-ICYjMODxy74VQ4h93gVwzRCxMtx8DD24KaEmzh52OoGD-vRGZ_NfhGVhXFjb4o15H7jMqQcUoYYPGDbBwc_jcMjOAc5naKjzrgEZ796gl5ul88398Xj093DzfVjYXlV56JTwrAWSAOzdLQhlWykJS0HA1BZWVllGyEo75gq6061VFadVG0lrQXOCD9BF7u9Ywzv0_yEfgtT9PNJzaQUvCZC8P-pUhLGBC9n6mpH2RhSitDpMQ5rEzeaEr0NRe9C0Yzpn1Bmx3LneEvZrOCPNzEP1sGer2sttmXv-5vb3kQNnn8DPoGdxA</recordid><startdate>20220101</startdate><enddate>20220101</enddate><creator>CHUDA, HISASHI</creator><creator>SUGANO, KOTARO</creator><creator>NAKATSUKASA, HIROMU</creator><creator>HATTORI, NOBUHIRO</creator><creator>KOBAYASHI, YASUHISA</creator><creator>MASUMA, SHUKEI</creator><general>The Japanese Society of Fisheries Science</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TN</scope><scope>C1K</scope><scope>F1W</scope><scope>SOI</scope></search><sort><creationdate>20220101</creationdate><title>Induction of sex reversal in longtooth grouper Epinephelus bruneus by implantation of 17-alpha-methyltestosterone cholesterol pellets</title><author>CHUDA, HISASHI ; SUGANO, KOTARO ; NAKATSUKASA, HIROMU ; HATTORI, NOBUHIRO ; KOBAYASHI, YASUHISA ; MASUMA, SHUKEI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c358t-f96a2de0bea2df1b057b7c0d3eaee5c75c9cb6613f2948f9d175f79d57cce3203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>2022</creationdate><topic>Body weight</topic><topic>Cholesterol</topic><topic>Epinephelus bruneus</topic><topic>Fish</topic><topic>Implantation</topic><topic>Males</topic><topic>Marine fishes</topic><topic>Methyltestosterone</topic><topic>Pellets</topic><topic>Physical growth</topic><topic>Sex</topic><topic>Sex reversal</topic><topic>Whitefish</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>CHUDA, HISASHI</creatorcontrib><creatorcontrib>SUGANO, KOTARO</creatorcontrib><creatorcontrib>NAKATSUKASA, HIROMU</creatorcontrib><creatorcontrib>HATTORI, NOBUHIRO</creatorcontrib><creatorcontrib>KOBAYASHI, YASUHISA</creatorcontrib><creatorcontrib>MASUMA, SHUKEI</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Environment Abstracts</collection><jtitle>NIPPON SUISAN GAKKAISHI</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>CHUDA, HISASHI</au><au>SUGANO, KOTARO</au><au>NAKATSUKASA, HIROMU</au><au>HATTORI, NOBUHIRO</au><au>KOBAYASHI, YASUHISA</au><au>MASUMA, SHUKEI</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Induction of sex reversal in longtooth grouper Epinephelus bruneus by implantation of 17-alpha-methyltestosterone cholesterol pellets</atitle><jtitle>NIPPON SUISAN GAKKAISHI</jtitle><addtitle>NSUGAF</addtitle><date>2022-01-01</date><risdate>2022</risdate><volume>88</volume><issue>6</issue><spage>485</spage><epage>493</epage><pages>485-493</pages><artnum>22-00017</artnum><issn>0021-5392</issn><eissn>1349-998X</eissn><abstract>Sex reversal from female to male in the six-year-old longtooth grouper Epinephelus bruneus (mean body weight, 3.1 kg) was induced by the implantation of 17-alpha-methyltestosterone (MT) cholesterol pellets. We compared the efficacy of the cholesterol pellets at MT doses of 1 mg/kg BW (group A) and 2 mg/kg BW (group B) implanted in February, as well as 2 mg/kg BW implanted in April (group C). At 4 months after the treatment, 67% of the fish in groups A and B had been transformed into males. On the other hand, all fish in group C had been transformed into males at 2 months after the treatment, and all group C fish remained male even at 14 months after the implantation. These results indicate that the implantation of MT cholesterol pellets at a MT dose of 2 mg/kg BW in April is an effective and long-lasting treatment for inducing sex reversal in the longtooth grouper.</abstract><cop>Tokyo</cop><pub>The Japanese Society of Fisheries Science</pub><doi>10.2331/suisan.22-00017</doi><tpages>9</tpages><oa>free_for_read</oa></addata></record> |
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| source | J-STAGE Free; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Freely Accessible Japanese Titles |
| subjects | Body weight Cholesterol Epinephelus bruneus Fish Implantation Males Marine fishes Methyltestosterone Pellets Physical growth Sex Sex reversal Whitefish |
| title | Induction of sex reversal in longtooth grouper Epinephelus bruneus by implantation of 17-alpha-methyltestosterone cholesterol pellets |
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