Crude glycerin in tilapia nutrition

• Grant number: 12/08438-2
• Support Opportunities: Regular Research Grants
• Start date: July 01, 2012
• End date: June 30, 2014
• Field of knowledge: Agronomical Sciences - Fishery Resources and Fishery Engineering - Aquaculture
• Principal Investigator: José Eurico Possebon Cyrino
• Grantee: José Eurico Possebon Cyrino
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated researchers: Brunno da Silva Cerozi ; Ligia Uribe Gonçalves ; Ricardo Basso Zanon ; Tarcila Souza de Castro Silva

Abstract

Petroleum is the main energy source worldwide. However, it is a nonrenewable energy source. To meet de increasing energy needs, renewable energy sources such as the biodiesel seem to be the ideal alternatives. Biodiesel is a biofuel produced from vegetable and animal oils yielding a co-product named crude glycerin. Glycerin can be utilized by the industry but only after an expensive purification process. The idea of using the crude glycerin as an energy source in animal has grown within both the scientific and industrial areas, especially because the increasing need for alternative, quality and low cost ingredients for the animal feed industry. There are few studies on the use of crude glycerin in aquafeeds and its impact on fish health. This project aims at determining the apparent digestibility coefficients of dietary energy, productive performance, hematological parameters and gastrointestinal development, i.e., integrity of intestinal epithelial cells, of juvenile tilapia fed graded dietary levels of crude glycerin as energy source. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

GONCALVES, LIGIA URIBE; CEROZI, BRUNNO DA SILVA; CASTRO SILVA, TARCILA SOUZADE; ZANON, RICARDO BASSO; POSSEBON CYRINO, JOSE EURICO. Crude glycerin as dietary energy source for Nile tilapia. Aquaculture, v. 437, p. 230-234, FEB 1 2015. (12/08438-2)