Data/hora: 24/06/2024 05:53:11

Biblioteca(s): | Embrapa Amazônia Oriental.
Data corrente: | 02/01/2020
Data da última atualização: | 02/01/2020
Autoria: | CORREA, R. de O.; AGUILAR, F. A. A.; CRUZ, T. M. P. da; SABIONI, R. E.; CYRINO, J. E. P.
Afiliação: | ROSELANY DE OLIVEIRA CORREA, CPATU; Fredy Armando Aguilar Aguilar, Fundación Universitaria Agraria de Colombia; Thaline Maira Pachelli da Cruz, USP/ESALQ; Rafael Estevan Sabioni, USP/ESALQ; José Eurico Possebon Cyrino, USP/ESALQ.
Título: | Partial substitution of fishmeal with soybean protein-based diets for dourado Salminus brasiliensis.
Ano de publicação: | 2020
Fonte/Imprenta: | Scientia Agricola, v. 77, n. 2, e20180046, 2020.
DOI: | 10.1590/1678-992X-2018-0046
Idioma: | Inglês
Conteúdo: | Cost and environmental restrictions limit the use of fishmeal (FM) in aquafeeds and plant protein (PP) sources. Soybean by-products are important alternative; however, their antinutritional factors may reduce fish growth. This study evaluates the effect of FM substitution for PP (soybean meal and soy protein concentrate) in diets of dourado (Salminus brasiliensis), a promising species for fish farming and empirically considered highly tolerant to PP-based diets. A control diet was formulated to contain 20 % of fishmeal and 61 % of plant protein (SBM) and other five diets with decreasing FM graded levels (16 %, 12 %, 8 %, 4 %, 0 %), which were replaced by soybean protein concentrate (SPC), comprising six treatments and four replicates. Fifteen dourados (6.73 ± 0.2 g) were stocked into 200 L tanks in a recirculating system, fed with experimental diets three times a day to apparent satiation for 90 days. Growth performance, food conversion ratio, protein efficiency ratio and protein retention efficiency of fish were impaired when FM substitution exceeded 13.05 % (the broken line analysis method). Histological analysis of intestinal mucosa showed a decrease in villus height when fishmeal was totally replaced by PP, which probably impaired digestive functions of fish and reflected in a severe loss on growth performance.
Thesagro: | Aquicultura; Nutrição; Proteína.
Thesaurus Nal: | Aquaculture; Enteritis; Nutrition; Protein sources; Salminus brasiliensis.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/208025/1/1678-992X-sa-77-02-e20180046.pdf
Registro original: | Embrapa Amazônia Oriental (CPATU)
Exemplares: | CPATU - (56221-1) - UPC - AP - DD -  -  -  - DIS