Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus)
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2010.26825 http://hdl.handle.net/11449/226219 |
Resumo: | The aim of this work was to evaluate the effects of three different diameters of crumble diets (0.25, 0.35 and 0.50 mm) on weight gain, growing, survival and sexual proportion to Nile tilapia (Oreochromis niloticus) larvae with 30, 60 and 90 days of age. In the first 30 days of age larvae were submitted to sex reversion with diets containing the hormone 17 α-methyltestosterone in a dosage of 60mg/kg of ration, respecting the different diameters and after this period, larvae were measured, weighed and counted for calculation of survival taxes. For the biometrical parameters as weight and total length a completely randomized design was used in subdivided installments with three treatments and three repetitions, considering installments the three diameters of diet and the sub installments, the three ages. In the end of this study, fish fed with diets of grain diameters 0.35 and 0.25 mm obtained the best results for weight gain (14.42 g and 13.36 g) and total length (83.13 mm and 82.72 mm), although these results were not statistically significant, and diets with grain diameters 0.50 and 0.35 mm resulted in 96,66 % and 93,33% of males, respectively, after histological analysis of gonads, without statistics differences between the treatments. |
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Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus)Diferentes granulometrias de rações sobre o ganho de peso, crescimento, sobrevivência e reversão sexual para tilápias-do-nilo (Oreochromis niloticus)FeedingLarvaeMilling degreeOreochromis niloticusThe aim of this work was to evaluate the effects of three different diameters of crumble diets (0.25, 0.35 and 0.50 mm) on weight gain, growing, survival and sexual proportion to Nile tilapia (Oreochromis niloticus) larvae with 30, 60 and 90 days of age. In the first 30 days of age larvae were submitted to sex reversion with diets containing the hormone 17 α-methyltestosterone in a dosage of 60mg/kg of ration, respecting the different diameters and after this period, larvae were measured, weighed and counted for calculation of survival taxes. For the biometrical parameters as weight and total length a completely randomized design was used in subdivided installments with three treatments and three repetitions, considering installments the three diameters of diet and the sub installments, the three ages. In the end of this study, fish fed with diets of grain diameters 0.35 and 0.25 mm obtained the best results for weight gain (14.42 g and 13.36 g) and total length (83.13 mm and 82.72 mm), although these results were not statistically significant, and diets with grain diameters 0.50 and 0.35 mm resulted in 96,66 % and 93,33% of males, respectively, after histological analysis of gonads, without statistics differences between the treatments.Centro de Aquicultura Universidade Estadual Paulista, Jaboticabal-SPDepartamento de Morfologia e Fisiologia Animal Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Jaboticabal-SPDepartamento de Ciências Exatas Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Jaboticabal-SPCentro de Aquicultura Universidade Estadual Paulista, Jaboticabal-SPDepartamento de Morfologia e Fisiologia Animal Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Jaboticabal-SPDepartamento de Ciências Exatas Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Jaboticabal-SPUniversidade Estadual Paulista (UNESP)Makino, Lilian Cristina [UNESP]Nakaghi, Laura Satiko Okada [UNESP]Paes, Maria do Carmo Faria [UNESP]Malheiros, Euclides Braga [UNESP]Koberstein, Teresa Cristina Ribeiro Dias [UNESP]2022-04-28T22:02:11Z2022-04-28T22:02:11Z2010-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article268-273http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2010.26825Brazilian Journal of Veterinary Research and Animal Science, v. 47, n. 4, p. 268-273, 2010.1678-44561413-9596http://hdl.handle.net/11449/22621910.11606/issn.1678-4456.bjvras.2010.268252-s2.0-79851498069Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBrazilian Journal of Veterinary Research and Animal Scienceinfo:eu-repo/semantics/openAccess2024-06-06T18:42:12Zoai:repositorio.unesp.br:11449/226219Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-06T18:42:12Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus) Diferentes granulometrias de rações sobre o ganho de peso, crescimento, sobrevivência e reversão sexual para tilápias-do-nilo (Oreochromis niloticus) |
title |
Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus) |
spellingShingle |
Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus) Makino, Lilian Cristina [UNESP] Feeding Larvae Milling degree Oreochromis niloticus |
title_short |
Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus) |
title_full |
Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus) |
title_fullStr |
Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus) |
title_full_unstemmed |
Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus) |
title_sort |
Different diameters of diets about weight gain, growing, survival and sex reversal to Nile tilapia (Oreochromis niloticus) |
author |
Makino, Lilian Cristina [UNESP] |
author_facet |
Makino, Lilian Cristina [UNESP] Nakaghi, Laura Satiko Okada [UNESP] Paes, Maria do Carmo Faria [UNESP] Malheiros, Euclides Braga [UNESP] Koberstein, Teresa Cristina Ribeiro Dias [UNESP] |
author_role |
author |
author2 |
Nakaghi, Laura Satiko Okada [UNESP] Paes, Maria do Carmo Faria [UNESP] Malheiros, Euclides Braga [UNESP] Koberstein, Teresa Cristina Ribeiro Dias [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Makino, Lilian Cristina [UNESP] Nakaghi, Laura Satiko Okada [UNESP] Paes, Maria do Carmo Faria [UNESP] Malheiros, Euclides Braga [UNESP] Koberstein, Teresa Cristina Ribeiro Dias [UNESP] |
dc.subject.por.fl_str_mv |
Feeding Larvae Milling degree Oreochromis niloticus |
topic |
Feeding Larvae Milling degree Oreochromis niloticus |
description |
The aim of this work was to evaluate the effects of three different diameters of crumble diets (0.25, 0.35 and 0.50 mm) on weight gain, growing, survival and sexual proportion to Nile tilapia (Oreochromis niloticus) larvae with 30, 60 and 90 days of age. In the first 30 days of age larvae were submitted to sex reversion with diets containing the hormone 17 α-methyltestosterone in a dosage of 60mg/kg of ration, respecting the different diameters and after this period, larvae were measured, weighed and counted for calculation of survival taxes. For the biometrical parameters as weight and total length a completely randomized design was used in subdivided installments with three treatments and three repetitions, considering installments the three diameters of diet and the sub installments, the three ages. In the end of this study, fish fed with diets of grain diameters 0.35 and 0.25 mm obtained the best results for weight gain (14.42 g and 13.36 g) and total length (83.13 mm and 82.72 mm), although these results were not statistically significant, and diets with grain diameters 0.50 and 0.35 mm resulted in 96,66 % and 93,33% of males, respectively, after histological analysis of gonads, without statistics differences between the treatments. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-01-01 2022-04-28T22:02:11Z 2022-04-28T22:02:11Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2010.26825 Brazilian Journal of Veterinary Research and Animal Science, v. 47, n. 4, p. 268-273, 2010. 1678-4456 1413-9596 http://hdl.handle.net/11449/226219 10.11606/issn.1678-4456.bjvras.2010.26825 2-s2.0-79851498069 |
url |
http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2010.26825 http://hdl.handle.net/11449/226219 |
identifier_str_mv |
Brazilian Journal of Veterinary Research and Animal Science, v. 47, n. 4, p. 268-273, 2010. 1678-4456 1413-9596 10.11606/issn.1678-4456.bjvras.2010.26825 2-s2.0-79851498069 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Brazilian Journal of Veterinary Research and Animal Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
268-273 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045466027327488 |