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Environmental rearing conditions are key determinants of changes in immune gene...
Pilotto, Mariana Rangel; Argenta, Nicolas; Forte, Jamille Martins; Hostins, Bárbara; Menezes, Francisca Gleire R.; Maggioni, RodrigoThe super-intensive BioFloc Technology (BFT) system has been highlighted as a promising eco-friendly alter-native to the traditional shrimp rearing systems. To gain insight into the impact of environmental rearingconditions on shrimp intestinal immunity, we assessed the expression profile of key immunological genes in themidgut ofLitopenaeus vannameishrimp reared in two contrasting culture systems: the indoor s...
Tolerance to glyphosate and antibiotic resistance in gram-negative bacteria iso...
Oliveira, Raul Vítor Ferreira de; Gallo, Margareth Borges Coutinho; Sousa, Oscarina Viana de; Ribeiro, Álef Vasconcelos; Lima, Tatiana SalataBrazil is among the world’s largest consumers of pesticides, with glyphosate (GLY) being the most commercialized herbicide in the country. Studies showed microorganisms suffer selective pressure when exposed to pesticides, developing tolerance to pesticides and resistance to antibiotics (ABs), in a phenomenon known as “cross-resistance”. The present work aimed to evaluate the occurrence of glyphosate-tolerance ...
An integrated approach to analyzing the effect of biofloc and probiotic technol...
Vieira, Jhones de Lima; Nunes, Larissa dos Santos; Menezes, Francisca Gleire Rodrigues de; Mendonça, Kamila Vieira de; Sousa, Oscarina Viana deAquaculture is essential to meet the demand for seafood due to the decrease in fish stocks caused by predatory fishing. Even though aquaculture is a sustainable seafood option, shrimp farming is often associated with eutrophication, mangrove destruction, disease propagation, and biodiversity reduction in coastal regions. These environmental problems generate financial losses, and to minimize the impacts on shri...
Periphyton use on microbial dynamics, water quality, and Nile tilapia growth in...
Silva, Jéssica Lucinda Saldanha da; Carvalho, Fátima Cristiane Teles de; Carvalho, Rubson Mateus Matos; Sousa, Oscarina Viana deThe objective of this work was to evaluate the effect of the use of an artificial substrate for periphytic biofilm growth on the microbiological composition of the biofilm, water quality, and zootechnical performance of Nile tilapia (Oreochromis niloticus) in rearing tanks. The experiment consisted of two treatments: presence and absence of artificial substrate for the growth of periphyton, with five replicates...
Genetic manipulation of native Bacillus cereus : a biotechnological tool for aq...
Costa Filho, João; Riet, Jade Oliveira; Santos, Kamila; Sousa, Oscarina Viana de; Maggioni, Rodrigo; Feijó, Rubens Galdino; Wasielesky Júnior, WilsonThis work aimed to perform the genetic manipulation of the native B. cereus #25 strain and to evaluate the colonization in the intestinal tract of Litopenaeus vannamei. The expression of the GFPmut1, absence of amylase activity, and growth in spectinomycin plates confirmed the transformation of the strain (BC25GM). In the shrimp bioassay, its addiction in the feed showed non-difference for water quality, growth...
Potencial antibacteriano de plantas do semiárido: um estudo etnofarmacológico e...
Vasconcelos, Lorrana Santana de; Menezes, Francisca Gleire Rodrigues de; Carvalho, Fátima Cristiane Teles de; Gracez, Danielle SequeiraA Etnofarmacologia associa os saberes populares referentes às plantas medicinais, com estudos químicos e farmacológicos. Com esta ramificação da Etnociência percebe-se que o respeito ao saber popular e ao meio ambiente são primordiais para o desenvolvimento sustentável. Em áreas de Caatinga, a flora medicinal é muito utilizada e algumas plantas possuem capacidade de curar sintomas de doenças gastrointestinais c...
Produção de bioflocos em sistema de lodos ativados tratando efluente de carcini...
Santaella, Sandra Tédde; Vale, Maria do Socorro; Almeida, Clara Cabral; Cavalcante, Willame de Araújo; Nunes, Alberto Jorge PintoThe release of wastewater and the shrimp feed cost are the main challenges faced by the shrimp farming industry. An alternative solution to both problems is biofloc production in a unit external to the farm, in an activated sludge system for effluent treatment. The treatment system’s influent was composed of the shrimp farm wastewater supplemented with urea and sugarcane molasses. The results show that the aver...
Preliminary evaluation of the use of bacteria isolated from the digestive tract...
Soares, Danyela Carla Elias; Abreu, Jade Oliveira; Silva, Jéssica Lucinda Saldanha da; Sousa, Oscarina Viana deThis study aims at investigating to follow the formation and development of biofloc aggregates in a system with the introduction of an in vitro selected bacterial consortium (Bacillus thuringiensis, Bacillus sp., Staphylococcus cohnii) in order to induce fast formation of biofloc and to compare it to the development of spontaneous formation biofloc. Two experimental groups were evaluated for biofloc formation, ...
Uso de extrato de sementes de Moringa, Moringa oleifera, na redução de coliform...
Vieira, Regine Helena Silva dos Fernandes; Vieira, Cláudia Brandão; Sousa, Oscarina Viana de; Vieira, Gustavo Hitzschky FernandesThe present paper has addressed the reductive action of the saline extract of “moringa” (Moringa oleifera) on thermotolerant coliforms (TC) found in seabob shrimp (Xiphopenaeus kroyeri) sold on the Mucuripe fi sh market, Fortaleza, Ceará State, under the immersion time periods of 5, 10, 15 and 20 min. Each sample was broken down into three groups, namely SCS – shrimp control sample, MTS – moringa-treated shrimp...
Balneabilidade das águas da Praia do Futuro, Fortaleza-Ceará
Vieira, Regine Helena Silva dos Fernandes; Silva, Paulo Roberto Ferreira Gomes da; Sousa, Oscarina Viana de; Lehugeur, Loreci Gislaine de OliveiraDuring 11 months the bacteriological pollution by total (TC) and fecal coliforms (FC) were studied at five beaches (Caça e Pesca-S1, Chico do Caranguejo-S2, Barraca do Louro–S3, Barraca Sobre as Ondas-S4 and Titanzinho-S5) on the eastern coast of Fortaleza, Ceará State, Brazil. The results were matched to the pluviometric variation. In spite of the methodology having not followed the 274/2000 Act CONAMA, it was...