Title:	Effects of different sampling intervals on apparent protein and energy digestibility of common feed ingredients by juvenile oscar fish (Astronotus ocellatus).
Authors:	NASCIMENTO, T. M. T. do FABREGAT, T. E. H. P. RODRIGUES, L. A. SAKOMURA, N. K. FERNANDES, J. B. K.
Affiliation:	THIAGO MATIAS TORRES DO NASCIMENTO, FACULDADE DE CIÊNCIAS AGRÁRIAS E VETERINÁRIAS DE JABOTICABAL, UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO"; THIAGO EL HADI PEREZ FABREGAT, UNIVERSIDADE DO ESTADO DE SANTA CATARINA; LAURINDO ANDRE RODRIGUES, CPAMN; NILVA KAZUE SAKOMURA, FACULDADE DE CIÊNCIAS AGRÁRIAS E VETERINÁRIAS DE JABOTICABAL, UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO"; JOÃO BATISTA KOCHENBORGER FERNANDES, FACULDADE DE CIÊNCIAS AGRÁRIAS E VETERINÁRIAS DE JABOTICABAL, UNIVERSIDADE ESTADUAL PAULISTA "JÚLIO DE MESQUITA FILHO".
Date Issued:	2012
Citation:	Acta Scientiarum. Animal Sciences, Maringá, v. 34, n. 2, p. 143-147, abr./jun. 2012.
Description:	This study evaluated the apparent protein and energy digestibility of common feed ingredients (soybean meal, fish meal, wheat meal and corn) by juvenile oscars using two different sampling intervals (30 min. and 12h). The 160 juvenile oscar fish tested (22.37 ± 3.06 g BW) were divided into four cylindrical plastic net cages, each one placed in a 1000 L feeding tank. The experiment was completely randomized in a 2 x 4 factorial design (2 feces collection intervals and 4 feed ingredients) with four replications. The statistical tests did not detect an interaction effect of sampling interval and type of ingredient on digestibility coefficients. Sampling interval did not affect protein and energy digestibility. The physical characteristics of juvenile oscar feces likely make them less susceptible to nutrient loss by leaching and can therefore be collected at longer intervals. Protein digestibility of the different ingredients was similar, showing that apparent digestibility of both animal and plant ingredients by juvenile oscars was efficient. Energy digestibility coefficients of fish meal and soybean meal were higher than those of wheat meal and corn. Carbohydrate-rich ingredients (wheat meal and corn) had the worst energy digestibility coefficients and are therefore not used efficiently by juvenile oscars.
Thesagro:	Nutrição
NAL Thesaurus:	digestible energy digestible protein nutrition
Keywords:	Ciclídeos Energia digestível Proteína digestível Peixes Cichlid Fishes
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CPAMN)