Location of Repository

Agroindustrial byproducts in diets for Nile tilapia juveniles

By João Sérgio Oliveira Carvalho, Rafael Vieira de Azevedo, Ana Paula de Souza Ramos and Luís Gustavo Tavares Braga

Abstract

This study was conducted to evaluate performance and body composition of tilapia (Oreochromis niloticus) fed diets containing byproducts aerial parts of cassava meal (Manihot esculenta), mesquite pod meal (Prosopis juliflora), cocoa meal (Theobroma cacao) and palm kernel cake (Elaeis guineensis) and to analyze the economic viability of the feed. A total of 1,350 juvenile males (100 g) were distributed in 15 cages (1 m³) in completely randomized design with five treatments (basal diet and four test diets) and three replicates. The following aspects were evaluated: final weight, total feed intake, total weight gain, feed conversion, specific growth rate, protein efficiency ratio and survival rate, dry matter, crude protein, fat and ash body, the average cost of feed per kilogram of weight gain and economic efficiency rate. No differences were observed for total consumption of food or survival rate. For other variables, the inclusion of cocoa and cassava meal impaired fish performance. No differences were observed for dry matter, crude protein and body ash. The lower body fat accumulation was recorded for the tilapia fed palm kernel cake. The best economic indicators were found to diets containing palm kernel cake. The byproducts evaluated can be used up to 150 g/kg in feed formulation, providing good performance and economic rate for Nile tilapia

Topics: economic evaluation, feed alternative, Oreochromis niloticus, productive performance, Animal culture, SF1-1100, Agriculture, S, DOAJ:Animal Sciences, DOAJ:Agriculture and Food Sciences
Publisher: Sociedade Brasileira de Zootecnia
Year: 2012
DOI identifier: 10.1590/S1516-35982012000300002
OAI identifier: oai:doaj.org/article:8a507a71fd1746d48e527298a052594e
Journal:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://doaj.org/toc/1806-9290 (external link)
  • https://doaj.org/toc/1516-3598 (external link)
  • http://www.scielo.br/scielo.ph... (external link)
  • https://doaj.org/article/8a507... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.