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Title: Avaliação da suplementação alimentar com bactéria probiótica no crescimento e sanidade de Arapaima gigas em sistema de recirculação de água
metadata.dc.creator: GABBAY, Marcela Iris
metadata.dc.contributor.advisor1: FUJIMOTO, Rodrigo Yudi
Keywords: Peixe
Arapaima gigas
Lactobacillus paracasei
Patógenos bacterianos
Amazônia brasileira
Issue Date: 29-Mar-2012
Publisher: Universidade Federal do Pará
Empresa Brasileira de Pesquisa Agropecuária
Universidade Federal Rural da Amazônia
Citation: GABBAY, Marcela Iris. Avaliação da suplementação alimentar com bactéria probiótica no crescimento e sanidade de Arapaima gigas em sistema de recirculação de água. 2012. 48 f. Dissertação (Mestrado) - Universidade Federal do Pará, Núcleo de Ciências Agrárias e Desenvolvimento Rural, Empresa Brasileira de Pesquisa Agropecuária, Universidade Federal Rural da Amazônia, Belém, 2012. Programa de Pós-Graduação em Ciência Animal.
Abstract: The lactic acid bacteria has become known for playing host to the beneficial effects, among them stand out from the activation of the immune system, animal performance and feed efficiency. The objective of this work was to select potentially probiotic bacteria and to assess the growth and health of Arapaima gigas. The first step was the isolation and selection of potential probiotic bacteria from 10 juvenile A. gigas being subjected to in vitro inhibition of bacterial pathogens known to aquaculture, and the second step consisted of evaluating the in vivo intestinal tract colonization by the bacterial strain and its relation to hematology. The best strain with inhibition zone was identified with the CH API50 kit as Lactobacillus paracasei (99.9%). For in vivo evaluation, the animals were fed for 120 days with a diet containing only sterile milk (T1), diet control without bacteria (T2), diet with 105 L. paracasei (T3) and diet with 106 L. paracasei (T4). After this period the fish underwent three treatments: intraperitoneal injection with Aeromonas hydrophila, injection of saline and non-injected fish. Within 24 hours of challenge high mortality was observed fish belonging to the group T3, T4, with respect to T1. The results allow us to conclude that the strain used in in vivo tests did not influence the growth performance, and be ineffective in protecting against infection by Aeromonas.
Appears in Collections:Dissertações em Ciência Animal (Mestrado) - PPGCAN/Castanhal

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