Feeding rate and frequency on juvenile pompano growth

Pesquisa Agropecuária Brasileira

Viviana Lisboa Da Cunha¹  Marcelo Roberto Pereira Shei¹  Marcelo Hideo Okamoto¹  Ricardo Vieira Rodrigues¹  Luís André Sampaio¹ 

[1] ,Universidade Federal do Rio Grande Instituto de Oceanografia Laboratório de Piscicultura Estuarina e MarinhaRio Grande RS ,Brazil

关键词: Trachinotus marginatus;    feed management;    marine fish culture;    Trachinotus marginatus;    manejo alimentar;    piscicultura marinha;   

DOI  :  10.1590/S0100-204X2013000800020

来源: SciELO

【 摘 要 】

The objective of this work was to evaluate the ideal feeding rate and frequency for juvenile pompano (Trachinotus marginatus). Two experiments were carried out in a completely randomized design, with three replicates each. In experiment I, 25 fish (4.8±0.6 g and 6.48±0.01 cm) were stocked in 15 tanks (50 L) during 21 days and fed 4, 8, 12, 16, and 20% body weight per day. In experiment II, 20 fish (4.1±0.1 g and 6.6±0.1 cm) were stocked in 15 tanks (40 L) during 28 days and fed 2, 6, 8, and 10 times a day. The tested feeding rates and frequencies did not influence survival. Final weight and length in experiment I were significantly lower in fish fed 4% body weight per day, whereas in experiment II only weight was significantly lower in fish fed 2 and 6 times a day. At the end of both experiments, apparent feed conversion showed significant difference, with the worst value observed for fish fed 20% body weight per day in experiment I and 2 times a day in experiment II. Juvenile pompano show better growth performance when fed 8% body weight per day and 8 times a day.

【 授权许可】

CC BY   
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