Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFRPE |
Texto Completo: | http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6369 |
Resumo: | Cage tilapia culture in Northeast region had grown very fast in the last years, where the climate provides adequate culture conditions during all the year. This kind of culture normally is developed in two culture phases: fingerlings or nursery phase and growout phase. Both of them need improvements in the management techniques and in the stocking densities, mainly in the first phase, where the goal is optimize the density to produce fingerlings (about 0.5 g) until adequate transfer size to growout phase (30 g). This work had the objetive to evaluate the stocking densities of tilapia (Oreochromis niloticus), Chitralada strain, in nets inside cages installed in Xingó reservoir, belonging to CHESF (Companhia Hidroelétrica do São Francisco), where the fish culture activity is developed with mean water temperature around 28ºC. Were utilized twelve 5m³ cages revested with 4m³ nets (mesh # 4mm), in which were stocked with 0.85g fingerlings, representing a completely randomized design, with three treatments (800 fingerlings/m³, 950 fingerlings/m³ and 1,100 fingerlings/m³) and four replicates. During the first 15 culture days, the fish were fed eight times per day, with a 55% crude protein powder ration, at a feeding rate of 12.5% of biomass daily. After this period, the ration was change of for another 45% crude protein, pelleted and extruded, at a feeding rate varying from 8 to 6.5% of biomass per day, until the end of culture. The ration quantity wasadjusted every 15 days through population samples (about 5%). During the culture, the following water quality variables: temperature, pH, dissolved oxygen, alkalinity, total hardness, ammonia and nitrite. At the end of the nursery phase, with duration of 54 days, the fingerling were counted, weighed and measured. The survival varied from 90.1 to 95%, without significative difference (P³0.05) among the treatments. The final body weight average was 37.5, 37.2 and 33.0 g, respectively for 800, 950 and 1.100 fingerlings/m³ treatments, without significative difference (P³0.05).The final body length average was 12.3, 12.1 and 11.6cm for the respective treatments, with significative difference (P<0.05) between 800 and 1,100 fingerlings/m³ treatments. The feed conversion ration varied from 1.00 to 1.09 without significative difference (P³0.05) among the treatments. So, it can be conclude that in the cage nursery phase is possible to stock until 1,100 fingerlings/m³ to obtain juveniles of 30 grams, during 54 days culture. |
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CORREIA, Eudes de SouzaMENDES, Paulo de PaulaSANTOS, Athiê Jorge GuerraApolinário, Marisa de OliveiraSARAIVA, Kleber Alves2017-02-15T14:10:09Z2004-12-01SARAIVA, Kleber Alves. Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas. 2004. 50 f. Dissertação (Programa de Pós-Graduação em Recursos Pesqueiros e Aquicultura) - Universidade Federal Rural de Pernambuco, Recife.http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6369Cage tilapia culture in Northeast region had grown very fast in the last years, where the climate provides adequate culture conditions during all the year. This kind of culture normally is developed in two culture phases: fingerlings or nursery phase and growout phase. Both of them need improvements in the management techniques and in the stocking densities, mainly in the first phase, where the goal is optimize the density to produce fingerlings (about 0.5 g) until adequate transfer size to growout phase (30 g). This work had the objetive to evaluate the stocking densities of tilapia (Oreochromis niloticus), Chitralada strain, in nets inside cages installed in Xingó reservoir, belonging to CHESF (Companhia Hidroelétrica do São Francisco), where the fish culture activity is developed with mean water temperature around 28ºC. Were utilized twelve 5m³ cages revested with 4m³ nets (mesh # 4mm), in which were stocked with 0.85g fingerlings, representing a completely randomized design, with three treatments (800 fingerlings/m³, 950 fingerlings/m³ and 1,100 fingerlings/m³) and four replicates. During the first 15 culture days, the fish were fed eight times per day, with a 55% crude protein powder ration, at a feeding rate of 12.5% of biomass daily. After this period, the ration was change of for another 45% crude protein, pelleted and extruded, at a feeding rate varying from 8 to 6.5% of biomass per day, until the end of culture. The ration quantity wasadjusted every 15 days through population samples (about 5%). During the culture, the following water quality variables: temperature, pH, dissolved oxygen, alkalinity, total hardness, ammonia and nitrite. At the end of the nursery phase, with duration of 54 days, the fingerling were counted, weighed and measured. The survival varied from 90.1 to 95%, without significative difference (P³0.05) among the treatments. The final body weight average was 37.5, 37.2 and 33.0 g, respectively for 800, 950 and 1.100 fingerlings/m³ treatments, without significative difference (P³0.05).The final body length average was 12.3, 12.1 and 11.6cm for the respective treatments, with significative difference (P<0.05) between 800 and 1,100 fingerlings/m³ treatments. The feed conversion ration varied from 1.00 to 1.09 without significative difference (P³0.05) among the treatments. So, it can be conclude that in the cage nursery phase is possible to stock until 1,100 fingerlings/m³ to obtain juveniles of 30 grams, during 54 days culture.A tilapicultura em gaiolas e tanques-rede, no Nordeste, tem crescido muito rápido nos últimos anos, onde o clima propício permite condições de criação durante todo o ano. Este tipo de cultivo, normalmente, é desenvolvido em duas fases: fase de alevinagem ou berçário e fase de engorda. Ambas necessitam de melhorias nas técnicas de manejo e nas densidades de estocagem, principalmente na primeira fase, onde a meta é otimizar a densidade para produzir alevinos (em torno de 0,5 g) até o tamanho adequado de transferência para fase de engorda (30g). Este trabalho teve como objetivo avaliar densidades de estocagem de alevinos de tilápia (Oreochromis niloticus), linhagem Chitralada, em bolsões dentro de gaiolas instaladas no reservatório de Xingó, pertencente a CHESF (Companhia Hidroelétrica do São Francisco), onde a atividade de piscicultura é desenvolvida em água com temperatura média anual de 28ºC. Foram utilizadas 12 gaiolas de 5m³ revestidas internamente por bolsões de 4m³ (malha de # 4mm), os quais foram estocados com alevinos de peso médio de 0,85g, representando um delineamento inteiramente casualisado, com três tratamentos (800 alevinos/m³, 950 alevinos/m³ e 1.100 alevinos/m³) e quatro repetições. Durante os primeiros 15 dias de cultivo foi fornecido uma ração em pó com 55% de proteína bruta, a uma taxa de alimentação de 12,5% da biomassa/dia. Após esse período, e até o final dessa fase, a ração foi substituída por outra, peletizada e extrusada, com 45% de proteína bruta, a uma taxa de alimentação que variou de 8 a 6,5% da biomassa/dia. A quantidade de ração foi reajustada a cada 15 dias, a partir de amostras de aproximadamente 5% da população. Durante o cultivo foram analisadas as seguintes variáveis de qualidade de água: temperatura, pH, oxigênio dissolvido, alcalinidade, dureza total, amônia e nitrito. No final da fase de alevinagem, com duração de 54 dias, os alevinos foram contados, pesados e medidos. A sobrevivência variou de 90,1 a 95%, não apresentando diferença significativa (P³0,05) entre os tratamentos. O peso médio final dos alevinos foi de 37,5, 37,2 e 33,0 g, respectivamente para os tratamentos 800, 950 e 1.100 alevinos/m³, não constatando diferença significativa (P³0,05). O comprimento médio final foi de 12,3, 12,1 e 11,6 cm para os respectivos tratamentos, porém havendo diferença significativa (P<0,05) entre os tratamentos 800 e 1.100 alevinos/m³. A conversão alimentar variou de 1,00 a 1,09, não apresentando diferença significativa (P³0,05) entre os tratamentos. Dessa forma pode-se concluir que na fase de alevinagem é possível estocar até 1.100 alevinos/m³ para a obtenção de indivíduos de 30 gramas, em 54 dias de cultivo.Submitted by (edna.saturno@ufrpe.br) on 2017-02-15T14:10:09Z No. of bitstreams: 1 Kleber Alves Saraiva.pdf: 1992867 bytes, checksum: e574031630567e88612f62a8ecd56f08 (MD5)Made available in DSpace on 2017-02-15T14:10:09Z (GMT). No. of bitstreams: 1 Kleber Alves Saraiva.pdf: 1992867 bytes, checksum: e574031630567e88612f62a8ecd56f08 (MD5) Previous issue date: 2004-12-01application/pdfporUniversidade Federal Rural de PernambucoPrograma de Pós-Graduação em Recursos Pesqueiros e AquiculturaUFRPEBrasilDepartamento de Pesca e AquiculturaTilápiaAlevinoOreochromis niloticusLinhagemChitraladaFingerlingsLineageCIENCIAS AGRARIAS::RECURSOS PESQUEIROS E ENGENHARIA DE PESCAAvaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolasinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesis80217415640343225476006006007231936942857037408-6131750198709519811info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da UFRPEinstname:Universidade Federal Rural de Pernambuco (UFRPE)instacron:UFRPELICENSElicense.txtlicense.txttext/plain; charset=utf-82165http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/6369/1/license.txtbd3efa91386c1718a7f26a329fdcb468MD51ORIGINALKleber Alves Saraiva.pdfKleber Alves Saraiva.pdfapplication/pdf1992867http://www.tede2.ufrpe.br:8080/tede2/bitstream/tede2/6369/2/Kleber+Alves+Saraiva.pdfe574031630567e88612f62a8ecd56f08MD52tede2/63692017-02-15 11:10:09.84oai:tede2: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Biblioteca Digital de Teses e Dissertaçõeshttp://www.tede2.ufrpe.br:8080/tede/PUBhttp://www.tede2.ufrpe.br:8080/oai/requestbdtd@ufrpe.br ||bdtd@ufrpe.bropendoar:2024-05-28T12:34:15.486842Biblioteca Digital de Teses e Dissertações da UFRPE - Universidade Federal Rural de Pernambuco (UFRPE)false |
dc.title.por.fl_str_mv |
Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas |
title |
Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas |
spellingShingle |
Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas SARAIVA, Kleber Alves Tilápia Alevino Oreochromis niloticus Linhagem Chitralada Fingerlings Lineage CIENCIAS AGRARIAS::RECURSOS PESQUEIROS E ENGENHARIA DE PESCA |
title_short |
Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas |
title_full |
Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas |
title_fullStr |
Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas |
title_full_unstemmed |
Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas |
title_sort |
Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas |
author |
SARAIVA, Kleber Alves |
author_facet |
SARAIVA, Kleber Alves |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
CORREIA, Eudes de Souza |
dc.contributor.referee1.fl_str_mv |
MENDES, Paulo de Paula |
dc.contributor.referee2.fl_str_mv |
SANTOS, Athiê Jorge Guerra |
dc.contributor.referee3.fl_str_mv |
Apolinário, Marisa de Oliveira |
dc.contributor.author.fl_str_mv |
SARAIVA, Kleber Alves |
contributor_str_mv |
CORREIA, Eudes de Souza MENDES, Paulo de Paula SANTOS, Athiê Jorge Guerra Apolinário, Marisa de Oliveira |
dc.subject.por.fl_str_mv |
Tilápia Alevino Oreochromis niloticus Linhagem Chitralada |
topic |
Tilápia Alevino Oreochromis niloticus Linhagem Chitralada Fingerlings Lineage CIENCIAS AGRARIAS::RECURSOS PESQUEIROS E ENGENHARIA DE PESCA |
dc.subject.eng.fl_str_mv |
Fingerlings Lineage |
dc.subject.cnpq.fl_str_mv |
CIENCIAS AGRARIAS::RECURSOS PESQUEIROS E ENGENHARIA DE PESCA |
description |
Cage tilapia culture in Northeast region had grown very fast in the last years, where the climate provides adequate culture conditions during all the year. This kind of culture normally is developed in two culture phases: fingerlings or nursery phase and growout phase. Both of them need improvements in the management techniques and in the stocking densities, mainly in the first phase, where the goal is optimize the density to produce fingerlings (about 0.5 g) until adequate transfer size to growout phase (30 g). This work had the objetive to evaluate the stocking densities of tilapia (Oreochromis niloticus), Chitralada strain, in nets inside cages installed in Xingó reservoir, belonging to CHESF (Companhia Hidroelétrica do São Francisco), where the fish culture activity is developed with mean water temperature around 28ºC. Were utilized twelve 5m³ cages revested with 4m³ nets (mesh # 4mm), in which were stocked with 0.85g fingerlings, representing a completely randomized design, with three treatments (800 fingerlings/m³, 950 fingerlings/m³ and 1,100 fingerlings/m³) and four replicates. During the first 15 culture days, the fish were fed eight times per day, with a 55% crude protein powder ration, at a feeding rate of 12.5% of biomass daily. After this period, the ration was change of for another 45% crude protein, pelleted and extruded, at a feeding rate varying from 8 to 6.5% of biomass per day, until the end of culture. The ration quantity wasadjusted every 15 days through population samples (about 5%). During the culture, the following water quality variables: temperature, pH, dissolved oxygen, alkalinity, total hardness, ammonia and nitrite. At the end of the nursery phase, with duration of 54 days, the fingerling were counted, weighed and measured. The survival varied from 90.1 to 95%, without significative difference (P³0.05) among the treatments. The final body weight average was 37.5, 37.2 and 33.0 g, respectively for 800, 950 and 1.100 fingerlings/m³ treatments, without significative difference (P³0.05).The final body length average was 12.3, 12.1 and 11.6cm for the respective treatments, with significative difference (P<0.05) between 800 and 1,100 fingerlings/m³ treatments. The feed conversion ration varied from 1.00 to 1.09 without significative difference (P³0.05) among the treatments. So, it can be conclude that in the cage nursery phase is possible to stock until 1,100 fingerlings/m³ to obtain juveniles of 30 grams, during 54 days culture. |
publishDate |
2004 |
dc.date.issued.fl_str_mv |
2004-12-01 |
dc.date.accessioned.fl_str_mv |
2017-02-15T14:10:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
SARAIVA, Kleber Alves. Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas. 2004. 50 f. Dissertação (Programa de Pós-Graduação em Recursos Pesqueiros e Aquicultura) - Universidade Federal Rural de Pernambuco, Recife. |
dc.identifier.uri.fl_str_mv |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6369 |
identifier_str_mv |
SARAIVA, Kleber Alves. Avaliação de densidades de estocagem de alevinos da tilápia Oreochromis niloticus (linhagem Chitralada) cultivado em gaiolas. 2004. 50 f. Dissertação (Programa de Pós-Graduação em Recursos Pesqueiros e Aquicultura) - Universidade Federal Rural de Pernambuco, Recife. |
url |
http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6369 |
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por |
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por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Universidade Federal Rural de Pernambuco |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Recursos Pesqueiros e Aquicultura |
dc.publisher.initials.fl_str_mv |
UFRPE |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Departamento de Pesca e Aquicultura |
publisher.none.fl_str_mv |
Universidade Federal Rural de Pernambuco |
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