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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Partial substitution of fishmeal with soybean protein-based diets for dourado Salminus brasiliensis

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Author(s):
Correa, Roselany de Oliveira [1] ; Aguilar Aguilar, Fredy Armando [2] ; Pachelli da Cruz, Thaline Maira [3] ; Sabioni, Rafael Estevan [3] ; Possebon Cyrino, Jose Eurico [3]
Total Authors: 5
Affiliation:
[1] Embrapa Amazonia Oriental, Tv Dr Eneas Pinheiro S-N, BR-66017970 Belem, Para - Brazil
[2] Fdn Univ Agr Colombia, Fac Ciencias Agr, Calle 170 54A-10, Bogota - Colombia
[3] Univ Sao Paulo, ESALQ, Dept Zootecnia, Ave Padua Dias 11, BR-13418900 Piracicaba, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Scientia Agricola; v. 77, n. 2 2020.
Web of Science Citations: 1
Abstract

ABSTRACT 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. (AU)

FAPESP's process: 12/19549-0 - Detoxified Jatropha curcas L. kernel meal: evaluating the purpose of use in pacu (Piaractus mesopotamicus) and dourado (Salminus brasiliensis) feeds
Grantee:José Eurico Possebon Cyrino
Support Opportunities: Regular Research Grants