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Desempenho de juvenis de robalo-peva cultivados em diferentes temperaturas

Authors: Correia, Daniel; David, Luiz Henrique Castro; Pinho, Sara Mello; Costa-filho, João; Emerenciano, Maurício Gustavo Coelho; Mello, Giovanni Lemos De;

Desempenho de juvenis de robalo-peva cultivados em diferentes temperaturas

Abstract

O objetivo deste estudo foi avaliar os efeitos de diferentes temperaturas da água no desempenho zootécnico de robalo-peva. O experimento teve duração de 60 dias, foi conduzido em sistemas de recirculação de água e contou com três tratamentos de diferentes temperaturas: 25, 28 e 31ºC, com três repetições cada. Foram utilizados no total 225 juvenis de robalo-peva com peso médio de 6,45 ± 0,58 g e alimentados até saciedade aparente. Foi avaliado o desempenho zootécnico e reportadas as taxas de alimentação para cada temperatura testada. A sobrevivência dos juvenis variou de 96 a 100% entre os tratamentos. Foram observados maiores valores de comprimento-padrão, comprimento total e ganho de peso nos tratamentos de 28 e 31ºC (p 0,05). As taxas de alimentação também não diferiram entre as temperaturas avaliadas. Os resultados mostram que as temperaturas utilizadas não afetaram negativamente o desempenho zootécnico dos juvenis de robalo-peva.

We aimed at evaluating the effects of different water temperatures on the zootechnical performance of fat snook. The experiment lasted for 60 days, which was conducted in water recirculation systems, and was randomly designed with three treatments and three replicates each, corresponding to three water temperatures (25, 28 and 31°C). A total of 225 fat snook juveniles with a mean weight of 6.45 ± 0.58 g were used, which were fed daily until apparent satiety. Zootechnical parameters were assessed and feeding rates were registered for each tested temperature. Survival rates varied from 96 to 100% among treatments. Higher values of standard and total length, and weight gain were found in 28 and 31°C (p 0.05). Feeding rates did not differ among evaluated temperatures. The results show that the used temperatures did not negatively affect zootechnical performance of fat snook juveniles.

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

CNPq: Projects 559777/2009-4 and 559790/2009-0

FAPESC : Projects 2013TR3406 and 2015TR453

FAPESC

Country
Brazil
Keywords

Centropomus parallelus, piscicultura marinha, marine fish farming, recirculação de água, water recirculation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green