GROWTH OF <i>Geophagus brasiliensis</i> REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES
The aim of this study was to evaluate the growth performance of Geophagus brasiliensis rearedb under distinct temperatures (24.3 ± 0.9, 28.1 ± 1.0, and 31.7 ± 0.8°C) and feeding regimes (apparent satiety and a supply of 4% of the total biomass). About 500 wild-caught individuals were sorted and...
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| Format: | Article |
| Language: | English |
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Instituto de Pesca
2021-06-01
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| Series: | Boletim do Instituto de Pesca |
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| Online Access: | https://institutodepesca.org/index.php/bip/article/view/1587 |
| _version_ | 1797214636364267520 |
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| author | Leone de Souza MEDINA Maurício Gustavo Coelho EMERENCIANO Fábio BITTENCOURT Giovanni Lemos de MELLO |
| author_facet | Leone de Souza MEDINA Maurício Gustavo Coelho EMERENCIANO Fábio BITTENCOURT Giovanni Lemos de MELLO |
| author_sort | Leone de Souza MEDINA |
| collection | DOAJ |
| description |
The aim of this study was to evaluate the growth performance of Geophagus brasiliensis rearedb under distinct temperatures (24.3 ± 0.9, 28.1 ± 1.0, and 31.7 ± 0.8°C) and feeding regimes (apparent satiety and a supply of 4% of the total biomass). About 500 wild-caught individuals were sorted and identified, to screen 180 fish to be used in the experiment (6.81 ± 1.15 g and 7.51 ± 0.47 cm). After a 55-day acclimatization period, the fish were distributed in experimental tanks, considering a double factorial randomized blocks scheme, composed of six treatments and three replicates. Growth performance parameters, somatic indexes and carcass yield were evaluated at the end of the experimental period (72 days). Fish fed to the point of apparent satiety presented higher (p <0.05) final weight, weight gain, specific growth rate and hepatosomatic index. The animals reared at a temperature of 24.3°C displayed higher (p <0.05) final weight, weight gain, specific growth, hepatosomatic index, lower visceral fat, and feed conversion index. It was concluded that G. brasiliensis presents higher productive indexes when fed until apparent satiety and reared in temperatures close to 24.3°C.
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| first_indexed | 2024-04-24T11:17:19Z |
| format | Article |
| id | doaj.art-9684bc5d745447ddacc757bff612298b |
| institution | Directory Open Access Journal |
| issn | 1678-2305 |
| language | English |
| last_indexed | 2024-04-24T11:17:19Z |
| publishDate | 2021-06-01 |
| publisher | Instituto de Pesca |
| record_format | Article |
| series | Boletim do Instituto de Pesca |
| spelling | doaj.art-9684bc5d745447ddacc757bff612298b2024-04-11T05:52:34ZengInstituto de PescaBoletim do Instituto de Pesca1678-23052021-06-0147GROWTH OF <i>Geophagus brasiliensis</i> REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMESLeone de Souza MEDINA0Maurício Gustavo Coelho EMERENCIANO1Fábio BITTENCOURT2Giovanni Lemos de MELLO3Universidade do Estado de Santa Catarina - UDESC, Centro de Educação Superior da Região Sul - CERES, Departamento de Engenharia de Pesca, Laboratório de Aquicultura - LAQ.Universidade do Estado de Santa Catarina - UDESC, Centro de Educação Superior da Região Sul - CERES, Departamento de Engenharia de Pesca, Laboratório de Aquicultura - LAQ.Universidade Estadual do Oeste do Paraná - Unioeste, Programa de Pós-Graduação em Recursos Pesqueiros e Engenharia de Pesca.Universidade do Estado de Santa Catarina - UDESC, Centro de Educação Superior da Região Sul - CERES, Departamento de Engenharia de Pesca, Laboratório de Aquicultura - LAQ. The aim of this study was to evaluate the growth performance of Geophagus brasiliensis rearedb under distinct temperatures (24.3 ± 0.9, 28.1 ± 1.0, and 31.7 ± 0.8°C) and feeding regimes (apparent satiety and a supply of 4% of the total biomass). About 500 wild-caught individuals were sorted and identified, to screen 180 fish to be used in the experiment (6.81 ± 1.15 g and 7.51 ± 0.47 cm). After a 55-day acclimatization period, the fish were distributed in experimental tanks, considering a double factorial randomized blocks scheme, composed of six treatments and three replicates. Growth performance parameters, somatic indexes and carcass yield were evaluated at the end of the experimental period (72 days). Fish fed to the point of apparent satiety presented higher (p <0.05) final weight, weight gain, specific growth rate and hepatosomatic index. The animals reared at a temperature of 24.3°C displayed higher (p <0.05) final weight, weight gain, specific growth, hepatosomatic index, lower visceral fat, and feed conversion index. It was concluded that G. brasiliensis presents higher productive indexes when fed until apparent satiety and reared in temperatures close to 24.3°C. https://institutodepesca.org/index.php/bip/article/view/1587cará;Cichlid;water recirculation;native species. |
| spellingShingle | Leone de Souza MEDINA Maurício Gustavo Coelho EMERENCIANO Fábio BITTENCOURT Giovanni Lemos de MELLO GROWTH OF <i>Geophagus brasiliensis</i> REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES Boletim do Instituto de Pesca cará; Cichlid; water recirculation; native species. |
| title | GROWTH OF <i>Geophagus brasiliensis</i> REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES |
| title_full | GROWTH OF <i>Geophagus brasiliensis</i> REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES |
| title_fullStr | GROWTH OF <i>Geophagus brasiliensis</i> REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES |
| title_full_unstemmed | GROWTH OF <i>Geophagus brasiliensis</i> REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES |
| title_short | GROWTH OF <i>Geophagus brasiliensis</i> REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES |
| title_sort | growth of i geophagus brasiliensis i reared at different temperatures and feeding regimes |
| topic | cará; Cichlid; water recirculation; native species. |
| url | https://institutodepesca.org/index.php/bip/article/view/1587 |
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