First feeding of Eugerres brasilianus (Carapeva) larvae with Acartia tonsa (Copepod) nauplii increases survival and resistance to acute stress
| Autor: | Cristina Vaz Avelar de Carvalho, Gabriel Passini, Wanessa de Melo Costa, Vinicius Ronzani Cerqueira, Andressa Teles |
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| Rok vydání: | 2015 |
| Předmět: |
Pharmacology
Larva biology Ecology ved/biology fungi ved/biology.organism_classification_rank.species Rotifer Brachionus biology.organism_classification Stress resistance peixe marinho Hatchery Isochrysis galbana alimento vivo Animal science resistência ao estresse lcsh:Animal culture larvicultura Copepod lcsh:SF1-1100 Acartia tonsa |
| Zdroj: | Boletim de Indústria Animal, Vol 72, Iss 4, Pp 277-283 (2016) |
| ISSN: | 1981-4100 0067-9615 |
| DOI: | 10.17523/bia.v72n4p277 |
| Popis: | The rotifer Brachionus sp. is commonly used for larval feeding in marine fish hatcheries. The aim of this study was to evaluate whether the inclusion of Acartia tonsa nauplii in the initial diet of carapeva larvae improves their survival, growth and resistance to stress when compared to the regimen containing only rotifers. Adult copepods were collected in the wild and cultured with the microalgae Chaetoceros muelleri , Isochrysis galbana and Nannochloropsis oculata to obtain nauplii. Carapeva larvae were grown for 15 days using four treatments and three replicates: 1) Brachionus plicatilis rotifers (10 to 15/mL); 2) A. tonsa nauplii (0.25 to 0.5/mL); 3) Brachionus plicatilis rotifers (5 to 7.5/mL) + A. tonsa nauplii (0.12 to 0.25/mL), and 4) no supply of live feed. After 15 days, the carapeva larvae were subjected to stress by exposure to air for 10 seconds and then returned to the source tank to evaluate survival after 24 h. Survival and stress resistance were higher in carapeva larvae fed B. plicatilis + A. tonsa nauplii (P |
| Databáze: | OpenAIRE |
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