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Published on: August 13, 2021
Apparent digestibility of conventional and alternative feedstuffs by hybrid tambacu juveniles
Álvaro J A Bicudo1, Thiago A T Araujo2, Luís G T Braga3
1Universidade Federal do Paraná, Departamento de Zootecnia, Rua Pioneiro, 2153, 85950-000 Palotina, PR, Brazil.
Abstract:
The apparent digestibility coefficients (ADC's) of dry matter (DM), crude protein (CP), and gross energy (GE) of conventional feedstuffs (cottonseed meal-CSM, soybean meal-SBM, wheat bran-WHB, corn-COR) and regional alternative feedstuffs (common bean residue meal-CBR, mesquite meal-MES, pasta by-product meal-PBM) were determined for hybrid juvenile tambacu Colossoma macropomum × Piaractus mesopotamicus. The apparent DM and GE digestibility of feedstuffs decreased (p<0.05) as fiber content of the ingredients increased. No differences (p>0.05) were found among ADC's of PBM and COR. The lowest CP ADC among energy sources was observed in MES; the lowest CP ADC among plant protein sources was observed in CBR. Information about the ADC's of conventional and alternative feedstuffs for tambacu is essential to formulate low-cost diets and can contribute to regional development.
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