
Neste trabalho, avaliou-se a resposta de alevinos de peixe-rei a diferentes tipos de alimentação, sendo os animais distribuídos num experimento com três tratamentos e quatro repetições, completamente ao acaso. Cada unidade de observação era composta por um aquário de 20 litros contendo 20 animais com três dias de idade. Durante seis semanas foram administradas, três vezes ao dia, as seguintes dietas: T1= ração farelada, T2= ração farelada + zooplâncton e T3= zooplâncton. Os resultados mostraram que a presença de zooplâncton resulta em maior crescimento e sobrevivência dos alevinos. Os peixes alimentados apenas com ração farelada apresentaram sobrevivência e crescimento significativamente menores, mas aceitáveis, considerando o estado atual dos estudos de nutrição para o peixe-rei.An experiment was run to evaluate three feeding methods for pejerrey fingerlings, in a complete randomized design with four replications. Each experimental unit consisted of a 20L aquarium and 20 three days old fingerlings. For six weeks, three times a day, fish received the following diets: T1= mash diet; T2= mash diet + zooplankton; T3= zooplankton. Results showed that zooplankton promotes better fingerlings growth and survival. Fish fed with mash diet showed significantly lower growth and survival, but acceptable considering actual status of nutrition studies for pejerrey.
zooplankton, ration, dieta, S, Agriculture (General), zooplâncton, Agriculture, S1-972, peixe-rei, Odontesthes, pejerrey
zooplankton, ration, dieta, S, Agriculture (General), zooplâncton, Agriculture, S1-972, peixe-rei, Odontesthes, pejerrey
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