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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
16/09/2013 |
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Data da última atualização: |
16/09/2013 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BARROSO, M. V.; CARVALHO, C. V. A. de; ANTONIASSI, R.; CERQUEIRA, V. R. |
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Afiliação: |
M. V. BARROSO, INCAPER; C. V. A. DE CARVALHO, UFSC; ROSEMAR ANTONIASSI, CTAA; V. R. CERQUEIRA, UFSC. |
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Título: |
Use of the copepod Acartia tonsa as the first live food for larvae of the fat snook Centropomus parallelus. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Aquaculture, v. 388-391, p. 153-158, Apr. 2013. |
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DOI: |
10.1016/j.aquaculture.2013.01.022 |
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Idioma: |
Inglês |
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Conteúdo: |
High-quality live food is essential for reducing the frequent high mortality of newly hatched fat snook (Centropomus parallelus) larvae in hatcheries. Copepods, a rich nutrition source, cultivated with the microalgae Chaetoceros muelleri and Isochrysis galbana, were evaluated as food for 0?14-day-old larvae. Two experiments were performed using nine 50-L tanks stocked with 2500 embryonated fat snook eggs. Three different dietary (treatments) were tested in triplicate: Experiment 1, Treatment 1 (Control), using rotifers Brachionus rotundiformis (20 mL? 1); Treatment 2 (Copepod), larvae were fed with Acartia tonsa (nauplii and copepodits, 0.1 mL? 1); and Treatment 3 (Mixed), larvae were fed with A. tonsa (0.05 mL? 1) and rotifers (10 mL? 1). In Experiment 2 to increase the density of live food, food organisms and the phytoplankton were introduced into the experimental tanks with the embryonated eggs and were stocked: Treatment 1, 20 rotifers mL? 1; Treatment 2, 0.5 copepods mL? 1; and Treatment 3, 10 rotifers mL? 1 and 0.25 copepods mL? 1. In Experiment 1, the Mixed Treatment increased significantly the survival rate (16.0% ± 7.5%) and mean larval weight (0.84 ± 0.05 mg) in relation to the other treatments. In Experiment 2, we observed significant improvements in larval notochord flexion in the Copepod and Mixed Treatment. The essential fatty acid profile of fat snook eggs had a DHA:EPA:ARA ratio of 11.4:2.4:1.0 while larvae in the Mixed and Copepods Treatments had ratios of 2.5:1.9:1.0 and 5.5:1.9:1.0, respectively. We conclude that the survival, development and the relationship between the major fatty acids were improved in treatments with copepods. MenosHigh-quality live food is essential for reducing the frequent high mortality of newly hatched fat snook (Centropomus parallelus) larvae in hatcheries. Copepods, a rich nutrition source, cultivated with the microalgae Chaetoceros muelleri and Isochrysis galbana, were evaluated as food for 0?14-day-old larvae. Two experiments were performed using nine 50-L tanks stocked with 2500 embryonated fat snook eggs. Three different dietary (treatments) were tested in triplicate: Experiment 1, Treatment 1 (Control), using rotifers Brachionus rotundiformis (20 mL? 1); Treatment 2 (Copepod), larvae were fed with Acartia tonsa (nauplii and copepodits, 0.1 mL? 1); and Treatment 3 (Mixed), larvae were fed with A. tonsa (0.05 mL? 1) and rotifers (10 mL? 1). In Experiment 2 to increase the density of live food, food organisms and the phytoplankton were introduced into the experimental tanks with the embryonated eggs and were stocked: Treatment 1, 20 rotifers mL? 1; Treatment 2, 0.5 copepods mL? 1; and Treatment 3, 10 rotifers mL? 1 and 0.25 copepods mL? 1. In Experiment 1, the Mixed Treatment increased significantly the survival rate (16.0% ± 7.5%) and mean larval weight (0.84 ± 0.05 mg) in relation to the other treatments. In Experiment 2, we observed significant improvements in larval notochord flexion in the Copepod and Mixed Treatment. The essential fatty acid profile of fat snook eggs had a DHA:EPA:ARA ratio of 11.4:2.4:1.0 while larvae in the Mixed and Copepods Treatments had ratios of 2... Mostrar Tudo |
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Palavras-Chave: |
Incubadora. |
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Thesagro: |
Ácido graxo; Lipídio; Peixe marinho; Robalo. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02349naa a2200229 a 4500
001 1966267
005 2013-09-16
008 2013 bl uuuu u00u1 u #d
024 7 $a10.1016/j.aquaculture.2013.01.022$2DOI
100 1 $aBARROSO, M. V.
245 $aUse of the copepod Acartia tonsa as the first live food for larvae of the fat snook Centropomus parallelus.
260 $c2013
520 $aHigh-quality live food is essential for reducing the frequent high mortality of newly hatched fat snook (Centropomus parallelus) larvae in hatcheries. Copepods, a rich nutrition source, cultivated with the microalgae Chaetoceros muelleri and Isochrysis galbana, were evaluated as food for 0?14-day-old larvae. Two experiments were performed using nine 50-L tanks stocked with 2500 embryonated fat snook eggs. Three different dietary (treatments) were tested in triplicate: Experiment 1, Treatment 1 (Control), using rotifers Brachionus rotundiformis (20 mL? 1); Treatment 2 (Copepod), larvae were fed with Acartia tonsa (nauplii and copepodits, 0.1 mL? 1); and Treatment 3 (Mixed), larvae were fed with A. tonsa (0.05 mL? 1) and rotifers (10 mL? 1). In Experiment 2 to increase the density of live food, food organisms and the phytoplankton were introduced into the experimental tanks with the embryonated eggs and were stocked: Treatment 1, 20 rotifers mL? 1; Treatment 2, 0.5 copepods mL? 1; and Treatment 3, 10 rotifers mL? 1 and 0.25 copepods mL? 1. In Experiment 1, the Mixed Treatment increased significantly the survival rate (16.0% ± 7.5%) and mean larval weight (0.84 ± 0.05 mg) in relation to the other treatments. In Experiment 2, we observed significant improvements in larval notochord flexion in the Copepod and Mixed Treatment. The essential fatty acid profile of fat snook eggs had a DHA:EPA:ARA ratio of 11.4:2.4:1.0 while larvae in the Mixed and Copepods Treatments had ratios of 2.5:1.9:1.0 and 5.5:1.9:1.0, respectively. We conclude that the survival, development and the relationship between the major fatty acids were improved in treatments with copepods.
650 $aÁcido graxo
650 $aLipídio
650 $aPeixe marinho
650 $aRobalo
653 $aIncubadora
700 1 $aCARVALHO, C. V. A. de
700 1 $aANTONIASSI, R.
700 1 $aCERQUEIRA, V. R.
773 $tAquaculture$gv. 388-391, p. 153-158, Apr. 2013.
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Embrapa Agroindústria de Alimentos (CTAA) |
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