01.1 - Graduação (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2
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Item Histologia intestinal de tilápia do Nilo Oreochromis niloticus submetidas a diferentes níveis de suplementação do extrato hidroalcoólico de Anacaridium occidentale na dieta(2024-10-10) Silva, Klarissa Albuquerque Larocerie da; Silva, Suzianny Maria Bezerra Cabral da; http://lattes.cnpq.br/8569566022920336; http://lattes.cnpq.br/3138623022102113This study evaluated the effect of supplementation with the hydroalcoholic extract of Anacardium occidentale bark on the intestinal morphology of Nile tilapia (Oreochromis niloticus) fingerlings. After a 15-day acclimation period, during which the fish were maintained in 250-liter tanks, they were transferred to 40-liter experimental units at a density of 250 fish/m³ each. The hydroalcoholic extract of Anacardium occidentale bark was added to the diets administered to the animals at concentrations determined in the minimum inhibitory concentration (MIC) assays. Four treatments were evaluated: (i) commercial feed with 3% A. occidentale extract, (ii) commercial feed with 4% A. occidentale extract, (iii) commercial feed with 5% A. occidentale extract, and (iv) control group (commercial feed without extract addition), all with four replicates each. The experiment lasted 30 days, and the diets were offered three times a day (08:00, 12:00, and 16:00 hours) to apparent satiety. For histological analysis, five fish were collected at the beginning and one fish at the end of the experimental period (one per replicate for each treatment). The intestines were exposed in Petri dishes and divided into three segments: anterior, middle, and posterior. A 3 cm portion of the middle intestine was used, which was longitudinally cut to expose the villi. The total height, height, width, and thickness of the villi were measured. As a result, higher mean values for all intestinal morphology variables evaluated (height, total height, thickness, and width of the villi) were observed in the groups supplemented with 3%, 4%, and 5% of the hydroalcoholic extract of A. occidentale bark compared to the control group, with no differences among the treatments that received the extract. In conclusion, the supplemental use of the hydroalcoholic extract of Anacardium occidentale bark in the diet of Nile tilapia fingerlings resulted in a beneficial effect on the intestinal morphology of the supplemented animals, indicating improved development regarding intestinal health.Item Equiparação de atividade de Programa de Iniciação Científica (PIBIC): relatório final sobre avaliação da Tecnologia do ultrassom sobre aspectos físicos, químicos e nutricionais de filés de tilápias do Nilo (Oreochromis niloticus)(2024-06-06) Silva, Eloá Dandara Carvalho da; Oliveira Filho, Paulo Roberto Campagnoli de; http://lattes.cnpq.br/8043850276929205; http://lattes.cnpq.br/2682308411839274Item Avaliação da digestibilidade de farinha de cefalotórax de camarão (Penaeus vannamei) em dietas para tilápia (Oreochromis niloticus)(2023-09-22) Campelo, Kesya Leal; Santos, Juliana Ferreira dos; http://lattes.cnpq.br/6621907859216486; http://lattes.cnpq.br/2587814165212462In order to promote knowledge about alternative ingredients for aquatic animal feed formulations, the apparent digestibility coefficients (ADC) of protein, dry matter and crude energy of two ingredients in tilapia feed were determined. Seventy-two juvenile Nile tilapia (Oreochromis niloticus) with an average weight of 61.85±10.06 g were used in a completely randomized experimental design with three treatments, three replications and eight fish per box, alternating between the box and the hatchery. Three treatments were used: Reference feed, based on the nutritional needs of the species; Test feed consisting of the reference feed with the addition of shrimp cephalothorax meal (P. vannamei) whole with reference feed; Test feed consisting of the reference feed with the addition of shrimp cephalothorax meal (P. vannamei) with low fat content. The ADC was determined by the indirect method using 1% celite as an inert indicator. The CDA for crude protein was 94.14% and 94.22% and digestible values for crude protein were 51.96% and 56.90%; for dry matter, 92% and 91.8%; for energy, 92%; and digestible values of 80 and 89% were found. Shrimp cephalothorax waste was considered a potential substitute for protein in feed for the species.Item Efeito da inclusão de farinha de minhoca com e sem zeólita natural na dieta de tilápia (Oreochromis niloticus) sobre os parâmetros de carcaça(2022-10-07) Oliveira, Elton Francisco de; Ludke, Maria do Carmo Mohaupt Marques; http://lattes.cnpq.br/4629657233206289; http://lattes.cnpq.br/3930176884309812The purpose of this research is to evaluate the effect of the addition of earthworm flour and the inclusion of zeolite (clinoptilolite) on carcass composition parameters. In the experiment, 280 tilapia of the species Oreocrhomis niloticus were used, with an initial and final weight of 2.826±0.0896g and 13.59±0.75g, respectively. The treatments were 8 diets corresponding to a 4 x 2 factorial arrangement, with 4 levels of inclusion of earthworm flour (0, 3.5; 7.0 and 10.5%) and levels of 0 and 2% of zeolite (Clinoptilolite ), the fish were distributed in a randomized block design with 5 replications. The following parameters were evaluated: carcass yield (RC), carcass dry matter (MSC); carcass organic matter (MOC); Mineral Substrate Matter (MMC); carcass energy based on dry matter (EMSC); ethereal substrate extract (EEC); energy retention coefficient (CRE); crude carcass protein (CBP); RE= Energy retention coefficient; CRP= Protein retention coefficient; TEP= Protein Efficiency Rate; IHE= Hepatosomatic Index; IVS= Viscerosomatic Index; At the end of the experiment (85 days) the animals were stunned with eugenol and then sacrificed and frozen, later they were lyophilized for analysis. The data were submitted to analysis of variance, in order to observe the main effects and the interaction between the factors (Worm meal levels and Zeolite inclusion) on the composition and protein and energy retention in the fish body. All analyzes were performed using the GLM procedure of the SAS computational package, at a 5.0% significance level. According to the data, there was a significant reduction in the amount of lipdis (p=0.0208) and in the energy retention coefficient (CRE) (p=0.0376) in the carcass of these animals when adding Zeolite in the diets. As for earthworm meal, a significant effect (p=0.0500) on CRE was observed, where when performing the regression there was a linear increase (P=0.0188) when including this ingredient in the diets of these fish. With this, we can add up to 10.5% of earthworm meal in diets for Tilapia, however Zeolite reduced energy efficiency, not interfering with other carcassItem Relatório de Estágio Supervisionado Obrigatório(2021-12-06) Cavalcanti Neto, José Bezerra; Porto Neto, Fernando de Figueiredo; http://lattes.cnpq.br/1475750525654086; http://lattes.cnpq.br/1168297384174902Item Relatório de Estágio Supervisionado Obrigatório(2021-12-06) Andrade, Bárbara Poliana Ramos de; Porto Neto, Fernando de Figueiredo; http://lattes.cnpq.br/1475750525654086; http://lattes.cnpq.br/9881569348491890Item Aproveitamento integrado de dessalinizadores para o desenvolvimento rural sustentável no semiárido pernambucano(2014) Netto Junior, Luiz Carlos Braga; Silveira, Ana Virgínia Marinho; http://lattes.cnpq.br/8207812492517198Item Perfil hematológico de Oreochromis niloticus cultivados em sistema de bioflocos e submetidos a diferentes densidades de estocagem(2019-12-04) Silva Júnior, Álvaro Cirino da; Silva, Suzianny Maria Bezerra Cabral da; http://lattes.cnpq.br/8569566022920336Item Avaliação de linguiças de tilápias do nilo (Oreochromis niloticus) submetidas a diferentes métodos de defumação(2019-07-11) Reis, Paulo Vitor Melo; Oliveira Filho, Paulo Roberto Campagnoli de; http://lattes.cnpq.br/8043850276929205Item Análise investigatória do método de reversão sexual da tilápia do nilo (Oreochromis niloticus), linhagem Chitralada, na piscicultura Mar Doce do Nordeste(2019-07-19) Silva, Joab Joaquim da; Ponzi Junior, Manlio; http://lattes.cnpq.br/1423075666160782; http://lattes.cnpq.br/6664018329829121This work was developed inside the facilities of Mar Doce do Nordeste Piscicultura e Projetos Ltda., attempting to confirm if the sexual reversion process of the Nile Tilapia (Oreochromis niloticus) fingerlings was inside what was foreseen in Pompa & Green’s reversion technique, using the masculinizing hormone 17 α-methyltestosterone, obtaining then, as detailed by the technique, monosex specimens with reversion rate above 95%. The fishes were fed with feed containing 60 mg/kg of 17 α-methyltestosterone, which was given 6 times per day, during the period of 28 days in a masonry vivarium in the first 10 days, followed by 18 days in another vivarium dug in the ground. After 120 days of cultivation, the specimen were slaughtered and eviscerated to posterior visual analysis of the gonads. The obtained results revealed reversion rates lower than what were expected with the correct application of Popma & Green’s reversion technique, appointing the protocol’s necessity of revision, in order to reach monosex specimen and improve the quality of the commercialized tilapia’s fingerlings.