Determination of the optimum dietary essential amino acid profile for growing phase of Nile tilapia by deletion method

Autor(es)

do Nascimento, Thiago M. T. ^[1] ; Mansano, Cleber F. M. ^[2] ; Peres, Helena ^[3] ; Rodrigues, Fabio H. F. ^[1] ; Khan, Kifayat U. ^[1] ; Romaneli, Rafael S. ^[1] ; Sakomura, Nilva K. ^[4] ; Fernandes, Joao B. K. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista UNESP, Fac Agr & Vet Sci, Aquaculture Ctr, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP - Brazil

^[2] Brazil Univ, Campus Fernandopolis, Est Projetada F-1 S-N, BR-15600000 Fernandopolis, SP - Brazil

^[3] Univ Porto, CIMAR CIIMAR Ctr Interdisciplinar Invest Marinha, Rua Bragas 289, P-4050123 Porto - Portugal

^[4] Univ Estadual Paulista UNESP, Fac Agr & Vet Sci, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Aquaculture; v. 523, JUN 30 2020.
• Citações Web of Science: 1

Resumo

The present study aimed to determine the optimal ratios of essential amino acids (EAAs) for Nile tilapia (Oreochromis niloticus) juveniles (150-200 g) using the deletion method. A total of 880 Nile tilapia juveniles (158.78 +/- 0.9 g) were randomly distributed among 44 tanks (20 fish per tank/replicate) of 1500-L capacity each. During the 53 days feeding trial, fish were fed with the respective diets and daily feed intake was regularly recorded. In order to prevent any feed wastage, the fish were hand-fed three times a day until apparent satiation. A balanced diet (BD) and other ten diets were formulated by the deletion method, where the BD diet was adjusted to result in a reduction of 45% of each tested EAA. A group of fish at the beginning and at the end of the experiment was euthanized for the determination of the carcass nitrogen (N) composition. Based on the results of the present study, the optimal balance of essential amino acids for Nile tilapia juveniles weighing 150 and 200 g (g 16 g(-1) N) was estimated as, arginine 4.88, lysine 5.87, threonine 6.02, histidine 1.73, isoleucine 3.26, leucine 4.82, methionine 2.36, phenylalanine 3.66, valine 3.46 and tryptophan 0.87. (AU)

• Processo FAPESP: 16/11016-3 - Método de determinação da composição corporal de peixes in vivo pelo uso da técnica não-invasiva
• Beneficiário: Cleber Fernando Menegasso Mansano
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 15/06093-6 - Modelo de predição das exigências nutricionais de tilápias e pacus
• Beneficiário: Thiago Matias Torres Do Nascimento
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 13/25761-4 - Modelagem da produção e das exigências nutricionais de aves e peixes
• Beneficiário: Nilva Kazue Sakomura
• Modalidade de apoio: Auxílio à Pesquisa - Temático