Probióticos em dietas para tilápia do Nilo durante a reversão sexual

Albuquerque, Daniele Menezes; Marengoni, Nilton Garcia; Boscolo, Wilson Rogério; Ribeiro, Ricardo Pereira; Mahl, Ilson; Moura, Milton Cézar de

doi:10.1590/s0103-84782013000800026

Cited by 10 publications

(9 citation statements)

References 18 publications

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“…group exhibited three different virulence profiles, and were also positive for biofilm formation, being the third group in pathogenic potential. Many studies in literature have used Bacillus species as probiotics (Cruz, Ibáñez, Hermosillo, & Saad, 2012;Albuquerque, Marengoni, & Boscolo, 2013), however, in this study, the isolated strains showed an enzymatic profile that probably conditioned them to the non-expression of their beneficial effects on the cultured organisms. Staphylococcus spp.…”

Section: Virulence Factors and Biofilm Formationmentioning

confidence: 64%

Aquatic microbiota diversity in the culture of Nile tilapia (Oreochromis niloticus) using bioflocs or periphyton: virulence factors and biofilm formation

Silva

Cavalcante

Carvalho

et al. 2016

Acta Sci. Anim. Sci.

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The following research isolated and identified the main bacterial groups present in the culture of juvenile Nile tilapia in the presence of bioflocs and/or periphyton. The strains were also tested for the production of exoenzymes, indicative of potential virulence factors, and ability to form biofilm. The water samples were taken from tilapia cultured in the presence of bioflocs (T1), in the presence of bioflocs and periphyton (T2), from traditional culture (T3) and from culture in the presence of periphyton (T4). In the growth and selection of the bacterial groups, pour plate method was used, along with the following media: Plate Count Agar (PCA - DIFCO), Aero Pseudo Selective Agar (GSP - Himedia) and Nutrient Agar (AN - Merck). 46 strains were isolated in the following distribution: T1 (n = 12); T2 (n = 10); T3 (n = 14) and T4 (n = 10). Among the isolates, the most frequent genera were: Pseudomonas spp., Aeromonas spp., Staphylococcus spp., Bacillus spp., Mycobacterium spp., Micrococcus spp., and Corybacterium spp. Bacterial isolates in treatments T1 and T3 tested positive for five virulence profiles each, while those isolated from T2 and T4 for two and three virulence profiles, respectively. Treatments in bioflocs and periphyton (T2) or only periphyton (T4) yielded bacteria of less pathogenic potentials. In relation to the fish growth, T1 and T4 resulted in a higher final weight.

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Section: Virulence Factors and Biofilm Formationmentioning

confidence: 64%

Aquatic microbiota diversity in the culture of Nile tilapia (Oreochromis niloticus) using bioflocs or periphyton: virulence factors and biofilm formation

Silva

Cavalcante

Carvalho

et al. 2016

Acta Sci. Anim. Sci.

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“…Toyoi e B. subtilis C-3102 são produtos aprovados pela Autoridade Europeia para a Segurança dos Alimentos (AESA). Estes aditivos são usados comercialmente para bovinos, aves, coelhos e suínos (Silley, 2006) e recentemente em peixes (Moura, 2011;Dias et al, 2012;Albuquerque et al, 2013;Nakandakare et al, 2013aNakandakare et al, , 2013bWild et al, 2014). Porém, poucas pesquisas são encontradas com relação à utilização de agentes antimicrobianos como medida preventiva à contaminação do ambiente por parasitos em sistemas de cultivo de tilápias em tanque-rede.…”

Section: Introductionunclassified

Influência de probióticos na prevalência parasitária e níveis de glicose e cortisol em tilápia do Nilo

et al. 2015

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A adição de probióticos em rações visa atuar como um bioestimulante da flora intestinal das tilápias. A fase de alevinagem em tanques-rede utiliza grande densidade de peixes, o que pode potencializar os efeitos de estresse. Os probióticos surgem como uma alternativa para a mitigação ou prevenção de danos. O objetivo deste trabalho foi avaliar a influência dos probióticos Bacillus cereus var. Toyoi e Bacillus subtilis C-3201 na prevalência parasitária e verificar o estado de saúde por meio do perfil bioquímico de glicose e cortisol e do fator de condição de Fulton (Kf) para atuar como indicador quantitativo do bem-estar de tilápia do Nilo da linhagem GIFT cultivada em tanques-rede. Foram utilizados 1800 juvenis de tilápia do Nilo distribuídos em 20 tanques-rede de 0,5 m x 0,5 m x 0,7 m instalados em tanques com baixa renovação de água. O grupo de peixes sem a adição de probióticos (T1) recebeu apenas dieta basal. Os probióticos liofilizados foram incluídos na ração utilizando 2 % de óleo vegetal na mesma proporção utilizada em todos os grupos experimentais. Na ração basal foram adicionados níveis de 0,5 % B. cereus (T2), 0,5 % de B. subtilis (T3), 0,25 % de B. cereus + 0,25 % B. subtilis (T4). As dietas com adição de B. cereus e/ou B. subtilis não foram eficientes no controle da infestação ectoparasitária por monogenóides e trichodinídeos. Houve maior (p

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“…toyoi and B. subtilis C-3102 are products approved by the European Food Safety Authority (EFSA). These probiotics have been recently used in Nile tilapia (Albuquerque, 2011;Moura, 2011;Albuquerque et al, 2013;Mello et al, 2013;Nakandakare et al, 2013;Wild et al, 2014) and shrimp research (Silva et al, 2011;Souza et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Quantification of intestinal bacteria, operating cost and performance of fingerlings Nile tilapia subjected to probiotics

Garcia-Marengoni¹,

Menezes-Albuquerque²

2015

lajar

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ABSTRACT. The use of microorganisms of the genus Bacillus in aquaculture is a nutritional management practice that is rapidly expanding in regions with intensive fish farming. This study aimed to quantify the total bacteria and total coliforms from the intestinal microbiota and estimate the partial operating costs and growth performance of Nile tilapia (Oreochromis niloticus) of the GIFT strain. A total of 1,200 post-larvae (24.7 ± 0.50 mg) were distributed into 24 aquaria (0.03-m³ capacity) within a completely randomized design in 2 x 3 factorial (phase × bacteria), with four replications. Each aquarium, containing 50 post-larvae (sex reversal phase) or 30 fish (fingerlings phase), it was considered to be an experimental unit, consisting of three treatments (diet+Bacillus subtilis C-3102, diet+Bacillus cereus var. toyoi and diet without probiotic addition). The quantification of the total bacteria and total coliforms of the intestinal microbiota of tilapia were influenced (P < 0.05) by the stages of culture. The bacterial count was not influenced (P > 0.05) by adding probiotics in the diets and no effect of the interaction between phase and bacteria was observed. The weight gain, average daily weight gain, specific growth rate and apparent feed conversion were not affected (P > 0.05) by inclusion of probiotics as part of the diets. The inclusion of B. subtilis and B. cereus as part of diets for Nile tilapia promotes intestinal colonization and improves the survival rate without negatively influencing the feed intake, total biomass, gross revenue and partial operating costs and net revenue. Therefore it recommends the use of these probiotics to growth of tilapia fingerlings Nile, GIFT strain. Keywords: economic analysis, microbiology, tilapia culture, probiotics, aquaculture.Cuantificación de las bacterias intestinales, costo de operación y desempeño de alevines de tilapia del Nilo sometido a probióticos RESUMEN. El uso de microorganismos del género Bacillus en la acuicultura es una práctica de manejo nutricional que se está expandiendo rápidamente en las regiones con la piscicultura intensiva. Este estudio tuvo como objetivo cuantificar las bacterias totales y coliformes totales de la microbiota intestinal y estimar los costos operativos parciales y comportamiento productivo de la tilapia del Nilo (Oreochromis niloticus) de la cepa GIFT. Un total de 1.200 post-larvas (24,7 ± 0,50 mg) fueron distribuidas aleatoriamente en 24 acuarios (capacidad 0,03 m³) en un diseño completamente al azar en factorial 2 x 3 (fase × bacterias), con cuatro réplicas. Cada acuario, que contiene 50 post-larvas (fase de inversión sexual) o 30 peces (fase de alevines), se consideró como una unidad experimental, que consta de tres tratamientos (dieta+Bacillus subtilis C-3102, la dieta+Bacillus cereus var. toyoi y dieta sin adición de probiótico). La cuantificación de las bacterias totales y coliformes totales de la microbiota intestinal de tilapia fueron afectados (P < 0,05) por las etapas del cultivo. El recuento de bacterias no fue afe...

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Probióticos em dietas para tilápia do Nilo durante a reversão sexual

Cited by 10 publications

References 18 publications

<b>Aquatic microbiota diversity in the culture of Nile tilapia (<i>Oreochromis niloticus</i>) using bioflocs or periphyton: virulence factors and biofilm formation

<b>Aquatic microbiota diversity in the culture of Nile tilapia (<i>Oreochromis niloticus</i>) using bioflocs or periphyton: virulence factors and biofilm formation

Influência de probióticos na prevalência parasitária e níveis de glicose e cortisol em tilápia do Nilo

Quantification of intestinal bacteria, operating cost and performance of fingerlings Nile tilapia subjected to probiotics

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