International Journal of
Fisheries and Aquaculture

  • Abbreviation: Int. J. Fish. Aquac.
  • Language: English
  • ISSN: 2006-9839
  • DOI: 10.5897/IJFA
  • Start Year: 2010
  • Published Articles: 209

Full Length Research Paper

Effects of feeding rates and feeding frequencies on growth performance, uniformity of the batch and survival rate of Amazon ornamental fish larvae

Daniel Abreu Vasconcelos Campelo
  • Daniel Abreu Vasconcelos Campelo
  • Department of Fisheries Engineering, Faculty of Faculty of Fisheries Engineering, Federal University of Pará, Bragança, PA, Brazil.
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Matheus Henrique Correa Marques
  • Matheus Henrique Correa Marques
  • Department of Fisheries Engineering, Faculty of Faculty of Fisheries Engineering, Federal University of Pará, Bragança, PA, Brazil.
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Odinilson Pereira Marim
  • Odinilson Pereira Marim
  • Department of Fisheries Engineering, Faculty of Faculty of Fisheries Engineering, Federal University of Pará, Bragança, PA, Brazil.
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Lorena Batista de Moura
  • Lorena Batista de Moura
  • Department of Fisheries Engineering, Faculty of Faculty of Fisheries Engineering, Federal University of Pará, Bragança, PA, Brazil.
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Bruno José Corecha Fernandes Eiras
  • Bruno José Corecha Fernandes Eiras
  • Department of Fisheries Engineering, Faculty of Faculty of Fisheries Engineering, Federal University of Pará, Bragança, PA, Brazil.
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Marcos Ferreira Brabo
  • Marcos Ferreira Brabo
  • Department of Fisheries Engineering, Faculty of Faculty of Fisheries Engineering, Federal University of Pará, Bragança, PA, Brazil.
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Galileu Crovatto Veras
  • Galileu Crovatto Veras
  • School of Veterinary, Aquaculture Laboratory, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil.
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  •  Received: 10 September 2018
  •  Accepted: 07 October 2018
  •  Published: 28 February 2019

Abstract

The aim of this study is to evaluate the effect of different feeding rates and frequencies on angelfish (Pterophyllum scalare) and severum (Heros severus) larvae. For this purpose, two similar experiments were conducted in parallel. For each experiment, a total of 360 larvae were distributed in 36-1 L aquariums. The experiments were done using a factorial 3x3 completely randomized design, with four replicates. The feeding rates of 50, 100 and 150 artemia nauplii larvae-1 and the feeding frequencies of one, two and four meals day-1 were tested. Parameters of growth performance, uniformity of the batch and survival rate were determined at the end of both experimental periods. No interaction was observed between feed rates and frequencies in angelfish for all parameters evaluated; growth performance was higher in fish fed with 150 nauplii larvae-1, which were divided in two and four meals day-1. The severum larvae presented interaction between feeding rates and feeding frequencies; growth performance was higher in fish fed with two and four meals day-1. Thus, in order to facilitate feed management and reduce manpower costs during ornamental angelfish and severum larvae production, it is recommended to supply 150 artemia nauplii larvae-1 divided in two meals day-1 to fish.

Key words: Angelfish, feeding practices, ornamental fish farming, severum.