Performance of the nile tilapia with varying daily feeding amounts, using a commercial diet

Authors

  • Glacio Souza Araujo Instituto Federal de Educação, Ciência e Tecnologia do Ceará
  • Rafael Lustosa Maciel Instituto Federal de Educação, Ciência e Tecnologia do Amazonas
  • Thales da Silva Moreira Universidade Federal do Ceará
  • Jefferson Pablo de Sousa Saboya EEEP Marta Maria Giffoni de Sousa
  • Renato Teixeira Moreira Instituto Federal de Educação, Ciência e Tecnologia do Ceará
  • José William Alves da Silva Instituto Federal de Educação, Ciência e Tecnologia do Ceará

DOI:

https://doi.org/10.14393/BJ-v36n2a2020-42305

Keywords:

Aquaculture, Cultivation, Growth, Oreochromis niloticus, Production.

Abstract

In order to evaluate the performance of Nile tilapia (Oreochromis niloticus), daily feeding amounts were varied in an experiment following a completely randomized design for 154 days and consisting of four treatments with three replications each, totaling 12 tanks with 3 m3 (3 x 1 x 1 m) of area each at densities of 5 fish m-3 (initial) and 3 fish m-3 until the end of the experiment. Throughout the experimental period, the daily amount of feed was varied and delimited for each feeding time (8h00, 11h00, 14h00 and 17h00) as: 25; 25; 25 and 25% in daily treatment 1 - T1; 20; 30; 30 and 20% in treatment 2 - T2; 30; 20; 20 and 30% in daily treatment 3 - T3; and 20; 30; 20 and 30% in treatment 4 - T4. Feed was offered six days a week, with extruded isocaloric (1,412 KJ) and isoproteic (32% crude protein) diets from 2 to 4 mm. Every two weeks, a sample containing 30% of stocked individuals was collected in each replication to monitor fish growth. Nile tilapia (O. niloticus) fed in daily amounts of 20; 30; 20 and 30% showed a better growth performance in the final of experiment, mainly on biomass, final average weight and feed conversion.

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Published

2020-02-11

How to Cite

ARAUJO, G.S.., MACIEL, R.L.., MOREIRA, T. da S.., SABOYA, J.P. de S.., MOREIRA, R.T.. and SILVA, J.W.A. da ., 2020. Performance of the nile tilapia with varying daily feeding amounts, using a commercial diet. Bioscience Journal [online], vol. 36, no. 2, pp. 527–538. [Accessed29 November 2022]. DOI 10.14393/BJ-v36n2a2020-42305. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/42305.

Issue

Section

Agricultural Sciences