Apparent digestibility coefficients of processed agro-food by-products in European seabass (Dicentrarchus labrax) juveniles

I. Campos, E. Matos, C. Aragão, M. Pintado, L. M. P. Valente*

*Autor correspondente para este trabalho

Resultado de pesquisarevisão de pares

14 Citações (Scopus)

Resumo

Apparent digestibility coefficients (ADCs) of processed agro-food by-products were assessed in European seabass (Dicentrarchus labrax). Each experimental diet was obtained by replacing 300 g/kg of a commercial-based diet used as reference (REF) with a test ingredient: wheat germ (GERM), okara meal (OKA), poultry by-product meal (POULT), steam hydrolysed (FeHY) and enzyme-treated feather meal (FeENZ), beta-lactoglobulin (β-Lg) and peptide fractions >3,000 Da obtained from brewer's yeast (YeastP) and fish by-products (FishP). Dry matter ADC was highest in β-Lg (95%) and lowest in OKA (40%). Protein ADCs were high in β-Lg, FishP, GERM and POULT (>93%); intermediate in FeHY and FeENZ (85%–88%); and moderate in OKA and YeastP (70%–78%). The essential amino acids' ADC mean was above 91% in POULT, β-Lg, GERM and FishP, 84%–89% in FeHY and FeENZ and 73%–76% in YeastP and OKA. Energy ADC was highest in POULT and β-Lg (89%–95%) and lowest in YeastP and OKA (61%–64%). Lipid ADC was highest for POULT and GERM (100%). Phosphorus ADC was lowest in GERM (19%) and highest in β-Lg (88%). FeHY, FeENZ, POULT, GERM, FishP and β-Lg are highlighted as protein sources for European seabass.

Idioma originalEnglish
Páginas (de-até)1274-1286
Número de páginas13
RevistaAquaculture Nutrition
Volume24
Número de emissão4
DOIs
Estado da publicaçãoPublished - ago 2018

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