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

Performance, animal health and fillets quality of tilapia fed diets supplemented with bacterial biomass

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Author(s):
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E.F.E. Santo [1] ; T.L.M. Grassi [2] ; M.T.S. Marcos [3] ; D.L. Oliveira [4] ; J.F. Cavazzan [5] ; P.C. Ciarlini [6] ; L.G. Narciso [7] ; A.A. Torres [8] ; G.S. Gonçalves [9] ; E.G. Abimorad [10] ; E.H.G. Ponsano [11]
Total Authors: 11
Affiliation:
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[1] Instituto Federal do Amazonas - Brasil
[2] Universidade Estadual Paulista - Brasil
[3] Universidade Estadual Paulista - Brasil
[4] Universidade Estadual Paulista - Brasil
[5] Universidade Estadual Paulista - Brasil
[6] Universidade Estadual Paulista - Brasil
[7] Universidade Estadual Paulista - Brasil
[8] Universidade Estadual Paulista - Brasil
[9] Instituto de Pesca - Brasil
[10] APTA - Brasil
[11] Universidade Estadual Paulista - Brasil
Total Affiliations: 11
Document type: Journal article
Source: Arquivo Brasileiro de Medicina Veterinária e Zootecnia; v. 68, n. 2, p. 525-534, 2016-04-00.
Abstract

Modern aquaculture is one of the fastest growing food sectors in the world. Beyond having productivity advantages, tilapia fish yields products with great market acceptance. For its nutrition, additives aiming at increasing zootechnical, pigmenting or antioxidant features may be used. This study aimed to evaluate the effect of the supplementation of tilapia diets with Rubrivivax gelatinosus biomass on the performance and the health of animals (histology and hematology), and on the quality of fillets (pH, proximate composition, color and rancidity). The experiment comprised six treatments, made of a control group with no additives, a group containing commercial pigments and four groups with biomass at 175, 350, 700 and 1400 mg/kg. Fish weighing 21.42±5.65g were reared for 74 days in a system with water recirculation and slaughtered for analyzes. No differences were detected for performance, histological and hematological analyzes. Fillets of the groups fed additives had lower moisture content than the control group while the fillets of the groups fed the biomass had the highest protein percentages. No differences were detected among treatments for pH​, lipids and ash values. Regarding to the color of the fillets, all treatments with additives increased redness. For all treatments, rancidity in the fillets increased during storage, although the groups treated with the highest biomass concentrations had the lowest values. R. gelatinosus biomass did not change performance and animal health, and proved to be capable of improving fillets quality features and conservation. (AU)

FAPESP's process: 11/01103-2 - Bacterial biomass in the tilapia fish farm
Grantee:Edson Francisco Do Espírito Santo
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 11/50274-4 - Bacterial biomass in the breeding of animals: performance, quality of products and economic viability
Grantee:Elisa Helena Giglio Ponsano
Support type: Regular Research Grants