Influence of phytase addition in diets for tambaqui

Authors

  • Lian Valente BRANDÃO Instituto Federal do Pará (IFPA)
  • Geovanna Letícia Oliveira TENÓRIO Instituto Federal do Pará (IFPA)
  • Verúcia Maria Dias BRANDÃO Instituto Federal do Pará (IFPA)
  • Léa Carolina de Oliveira COSTA Instituto Federal do Pará (IFPA)
  • Geraldo Pereira PEREIRA JUNIOR Instituto Federal do Rio de Janeiro (IFRJ)
  • Rodrigo ROUBACH Ministério da Pesca e Aquicultura (MPA), Coordenação Geral de Planejamento e Ordenamento da Aquicultura Marinha em Estabelecimentos Rurais

Keywords:

fish nutrition, phosphorus, water quality, Colossoma macropomum

Abstract

This research was carried out to compare the effect of phytase on performance, and in the incorporation of phosphorus in tanks with tambaqui. Four isoproteic (30%) and isocaloric diets were used: one standard (control), without phytase supplementation, and other three with different phytase levels (1,000; 1,500 and 2,000 uf kg-1), with three replication each diet, during 45 days. The results demonstrated that the use of phytase in diets had no effect on weight gain, feed conversion and fish survival, but can reduce fish phosphorus excretion by 21%, minimizing the impacts caused by this nutrient.

Downloads

Published

2018-11-20

Issue

Vol. 41 No. 4 (2015): BOLETIM DO INSTITUTO DE PESCA

Section

Short Communication