Open AccessDigestibilidade de fontes proteicas e disponibilidade de fosfatos inorgí¢nicos em três fases de desenvolvimento da tilápia-do-nilo
Author(s) -
Luís Gabriel Quintero Pinto,
Luiz Edivaldo Pezzato,
Blanca Stella Pardo Gamboa,
Daniel de Magalhães Araujo
Publication year - 2017
Publication title -
boletim do instituto de pesca
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 15
eISSN - 1678-2305
pISSN - 0046-9939
DOI - 10.20950/1678-2305.2017v43n1p1
Subject(s) - biology , nutrient , food science , zoology , ecology
Apparent digestibility of nutrients in several protein ingredients and inorganic phosphates was compared in three Nile tilapia different development stage. The ingredients tested were fish meal, chicken by-product meal, meat and bone meal, corn gluten, soybean meal, cotton seed meal, mono-bi-calcium phosphate, bi-calcium phosphate, mono-potassium phosphate and phosphoric acid. The apparent digestibility coefficients of dry matter, crude protein, gross energy, phosphorus, calcium and magnesium were determined with 25 g, 250 g and 500 g fish. It was concluded that the capacity of Nile tilapia to digesting feed and absorbing nutrients is dependent on the body weight and characteristics of food evaluated. There was a trend to better utilization of nutrients from animal origin foods and inorganic sources by 25 g fish. The fishes with 250 g and 500 g showed better use of plant protein sources than 25 g fish.