Testing of triploid tilapia ( Oreochromis niloticus) under tropical pond conditions
The aim of this investigation was to study the aquacultural potential of triploid tilapia in extensive pond culture under tropical conditions vs. traditional predator controlled cultivation of diploid tilapia. Triploidy was induced in Oreochromis niloticus by heat shock. Following a fry rearing peri...
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| Veröffentlicht in: | Aquaculture 1995-12, Vol.137 (1), p.343-353 |
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| creator | Brämick, Uwe Puckhaber, Birgit Langholz, Hans-Jürgen Hörstgen-Schwark, Gabriele |
| description | The aim of this investigation was to study the aquacultural potential of triploid tilapia in extensive pond culture under tropical conditions vs. traditional predator controlled cultivation of diploid tilapia.
Triploidy was induced in
Oreochromis niloticus by heat shock. Following a fry rearing period, a total of 2400 triploid and 1200 diploid tilapia were tested in two subsequent sets of experiments in 300 m
2 earthen ponds. Rice bran was administered as supplementary feed in addition to weekly fertilization of ponds. In order to estimate fish growth, sampling by seine took place twice a month. Twenty-five weeks after stocking (age of fish: 285 days) ponds were drained. While no differences in growth between triploids and diploid controls could be observed at age of maturation, triploids were significant heavier (
P < 0.01) than control fish at the end of the experiment. Triploid males exceeded body weights of respective controls on average by 66 ± 17%, whereas triploid females displayed an even higher increase in body weight compared to diploid ones (95 ± 27%). Gonadal weight and development in triploids were in general lower and retarded, respectively; however, in 15% of triploid females an extremely high gonadosomal index was observed.
In this experiment, stunting was found to be prevented in ponds stocked with triploid tilapia. Thus, induced triploidy can be of great benefit in commercial tilapia culture. |
| doi_str_mv | 10.1016/0044-8486(95)01104-8 |
| format | Article |
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Triploidy was induced in
Oreochromis niloticus by heat shock. Following a fry rearing period, a total of 2400 triploid and 1200 diploid tilapia were tested in two subsequent sets of experiments in 300 m
2 earthen ponds. Rice bran was administered as supplementary feed in addition to weekly fertilization of ponds. In order to estimate fish growth, sampling by seine took place twice a month. Twenty-five weeks after stocking (age of fish: 285 days) ponds were drained. While no differences in growth between triploids and diploid controls could be observed at age of maturation, triploids were significant heavier (
P < 0.01) than control fish at the end of the experiment. Triploid males exceeded body weights of respective controls on average by 66 ± 17%, whereas triploid females displayed an even higher increase in body weight compared to diploid ones (95 ± 27%). Gonadal weight and development in triploids were in general lower and retarded, respectively; however, in 15% of triploid females an extremely high gonadosomal index was observed.
In this experiment, stunting was found to be prevented in ponds stocked with triploid tilapia. Thus, induced triploidy can be of great benefit in commercial tilapia culture.</description><identifier>ISSN: 0044-8486</identifier><identifier>EISSN: 1873-5622</identifier><identifier>DOI: 10.1016/0044-8486(95)01104-8</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Aquaculture ; Fish ; FISH CULTURE ; Genetics ; INDUCED POLYPLOIDY ; Induced triploidy ; OREOCHROMIS NILOTICUS ; PISCICULTURA ; PISCICULTURE ; POLIPLOIDIA INDUCIDA ; POLYPLOIDIE PROVOQUEE ; TRIPLOIDIA ; TRIPLOIDIE ; TRIPLOIDY ; Tropical pond culture</subject><ispartof>Aquaculture, 1995-12, Vol.137 (1), p.343-353</ispartof><rights>1995</rights><rights>Copyright Elsevier Sequoia S.A. Dec 1, 1995</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c447t-535b4774b91ad01cfb80f2817aec3059329196a81ba3a641b26bace18061f1f03</citedby><cites>FETCH-LOGICAL-c447t-535b4774b91ad01cfb80f2817aec3059329196a81ba3a641b26bace18061f1f03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/0044848695011048$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Brämick, Uwe</creatorcontrib><creatorcontrib>Puckhaber, Birgit</creatorcontrib><creatorcontrib>Langholz, Hans-Jürgen</creatorcontrib><creatorcontrib>Hörstgen-Schwark, Gabriele</creatorcontrib><title>Testing of triploid tilapia ( Oreochromis niloticus) under tropical pond conditions</title><title>Aquaculture</title><description>The aim of this investigation was to study the aquacultural potential of triploid tilapia in extensive pond culture under tropical conditions vs. traditional predator controlled cultivation of diploid tilapia.
Triploidy was induced in
Oreochromis niloticus by heat shock. Following a fry rearing period, a total of 2400 triploid and 1200 diploid tilapia were tested in two subsequent sets of experiments in 300 m
2 earthen ponds. Rice bran was administered as supplementary feed in addition to weekly fertilization of ponds. In order to estimate fish growth, sampling by seine took place twice a month. Twenty-five weeks after stocking (age of fish: 285 days) ponds were drained. While no differences in growth between triploids and diploid controls could be observed at age of maturation, triploids were significant heavier (
P < 0.01) than control fish at the end of the experiment. Triploid males exceeded body weights of respective controls on average by 66 ± 17%, whereas triploid females displayed an even higher increase in body weight compared to diploid ones (95 ± 27%). Gonadal weight and development in triploids were in general lower and retarded, respectively; however, in 15% of triploid females an extremely high gonadosomal index was observed.
In this experiment, stunting was found to be prevented in ponds stocked with triploid tilapia. Thus, induced triploidy can be of great benefit in commercial tilapia culture.</description><subject>Aquaculture</subject><subject>Fish</subject><subject>FISH CULTURE</subject><subject>Genetics</subject><subject>INDUCED POLYPLOIDY</subject><subject>Induced triploidy</subject><subject>OREOCHROMIS NILOTICUS</subject><subject>PISCICULTURA</subject><subject>PISCICULTURE</subject><subject>POLIPLOIDIA INDUCIDA</subject><subject>POLYPLOIDIE PROVOQUEE</subject><subject>TRIPLOIDIA</subject><subject>TRIPLOIDIE</subject><subject>TRIPLOIDY</subject><subject>Tropical pond culture</subject><issn>0044-8486</issn><issn>1873-5622</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNp9kEtP3DAQgK2KSl1o_0DVg8UBsYfATOJHckFCqDykFRy6PVuO48CgEKd2Uqn_vt5uxYEDF4-s-eb1MfYN4QwB1TmAEEUtanXayDUgQv59YCusdVVIVZYHbPWKfGKHKT0DgFISV-zH1qeZxkceej5HmoZAHZ9psBNZfsofog_uKYYXSnykIczklrTmy9j5mPkwkbMDn8LYcZcfmimM6TP72Nsh-S__4xH7ef19e3VbbB5u7q4uN4UTQs-FrGQrtBZtg7YDdH1bQ1_WqK13FcimKhtslK2xtZVVAttStdZ5rEFhjz1UR-xk33eK4deS7zB5TeeHwY4-LMmgBtBCiwwevwGfwxLHvJspQSgtS6kyJPaQiyGl6HszRXqx8Y9BMDvNZufQ7ByaRpp_mk2dy77uy3objH2MlMz9plF5sipz8mKf9FnDb_LRJEd-dL6j6N1sukDvd_8LGHaLUA</recordid><startdate>19951201</startdate><enddate>19951201</enddate><creator>Brämick, Uwe</creator><creator>Puckhaber, Birgit</creator><creator>Langholz, Hans-Jürgen</creator><creator>Hörstgen-Schwark, Gabriele</creator><general>Elsevier B.V</general><general>Elsevier Sequoia S.A</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7QR</scope><scope>7ST</scope><scope>7TN</scope><scope>7U7</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H94</scope><scope>H95</scope><scope>H98</scope><scope>H99</scope><scope>L.F</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>SOI</scope><scope>H97</scope></search><sort><creationdate>19951201</creationdate><title>Testing of triploid tilapia ( Oreochromis niloticus) under tropical pond conditions</title><author>Brämick, Uwe ; Puckhaber, Birgit ; Langholz, Hans-Jürgen ; Hörstgen-Schwark, Gabriele</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c447t-535b4774b91ad01cfb80f2817aec3059329196a81ba3a641b26bace18061f1f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Aquaculture</topic><topic>Fish</topic><topic>FISH CULTURE</topic><topic>Genetics</topic><topic>INDUCED POLYPLOIDY</topic><topic>Induced triploidy</topic><topic>OREOCHROMIS NILOTICUS</topic><topic>PISCICULTURA</topic><topic>PISCICULTURE</topic><topic>POLIPLOIDIA INDUCIDA</topic><topic>POLYPLOIDIE PROVOQUEE</topic><topic>TRIPLOIDIA</topic><topic>TRIPLOIDIE</topic><topic>TRIPLOIDY</topic><topic>Tropical pond culture</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Brämick, Uwe</creatorcontrib><creatorcontrib>Puckhaber, Birgit</creatorcontrib><creatorcontrib>Langholz, Hans-Jürgen</creatorcontrib><creatorcontrib>Hörstgen-Schwark, Gabriele</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Chemoreception Abstracts</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 1: Biological Sciences & Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Aquaculture Abstracts</collection><collection>ASFA: Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Marine Biotechnology Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><jtitle>Aquaculture</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Brämick, Uwe</au><au>Puckhaber, Birgit</au><au>Langholz, Hans-Jürgen</au><au>Hörstgen-Schwark, Gabriele</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Testing of triploid tilapia ( Oreochromis niloticus) under tropical pond conditions</atitle><jtitle>Aquaculture</jtitle><date>1995-12-01</date><risdate>1995</risdate><volume>137</volume><issue>1</issue><spage>343</spage><epage>353</epage><pages>343-353</pages><issn>0044-8486</issn><eissn>1873-5622</eissn><abstract>The aim of this investigation was to study the aquacultural potential of triploid tilapia in extensive pond culture under tropical conditions vs. traditional predator controlled cultivation of diploid tilapia.
Triploidy was induced in
Oreochromis niloticus by heat shock. Following a fry rearing period, a total of 2400 triploid and 1200 diploid tilapia were tested in two subsequent sets of experiments in 300 m
2 earthen ponds. Rice bran was administered as supplementary feed in addition to weekly fertilization of ponds. In order to estimate fish growth, sampling by seine took place twice a month. Twenty-five weeks after stocking (age of fish: 285 days) ponds were drained. While no differences in growth between triploids and diploid controls could be observed at age of maturation, triploids were significant heavier (
P < 0.01) than control fish at the end of the experiment. Triploid males exceeded body weights of respective controls on average by 66 ± 17%, whereas triploid females displayed an even higher increase in body weight compared to diploid ones (95 ± 27%). Gonadal weight and development in triploids were in general lower and retarded, respectively; however, in 15% of triploid females an extremely high gonadosomal index was observed.
In this experiment, stunting was found to be prevented in ponds stocked with triploid tilapia. Thus, induced triploidy can be of great benefit in commercial tilapia culture.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/0044-8486(95)01104-8</doi><tpages>11</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Aquaculture Fish FISH CULTURE Genetics INDUCED POLYPLOIDY Induced triploidy OREOCHROMIS NILOTICUS PISCICULTURA PISCICULTURE POLIPLOIDIA INDUCIDA POLYPLOIDIE PROVOQUEE TRIPLOIDIA TRIPLOIDIE TRIPLOIDY Tropical pond culture |
| title | Testing of triploid tilapia ( Oreochromis niloticus) under tropical pond conditions |
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