Navegando por Autor "Santos, Juliana Ferreira dos"

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Aplicação do processo de design no desenvolvimento de um produto de software para suporte à inovação social
(2018) Santos, Juliana Ferreira dos; Souza, Ricardo André Cavalcante de; http://lattes.cnpq.br/7101881357139219; http://lattes.cnpq.br/8780029383567585
Innovation can be described as a good Idea of solving a relevant problem implemented. Social Innovation is na innovation that at the same time meets a social need and creates new relationships or social collaborations. Social innovations of high impact and high scalability are generally aided by ICT(InformationandCommunicationTechnology).In thiscontext,this work presents the application of the Design Process for the inception, design and implementation of a software product to support Social Innovation. To do so, it was necessary to align the Design Process with a Social Innovation Model. The social innovation treated in this work consists in fomenting a social network of rainfall (Rainwater measurement) to support several áreas (agriculture, livestock, mobility, etc.) that use climatologic information in decision making. The developed software product maintains the Record and visualization of the pluviometric information shared by the people and consists of the first implemented capacity of a Time and Weather Collaboration Network.
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/2587814165212462
In 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.
Criopreservação de sêmen de peixe de águas doces tropicais: uma revisão tecnológica
(2021-12-09) Oliveira, Kleydson Thyago Araujo de; Santos, Juliana Ferreira dos; http://lattes.cnpq.br/6621907859216486; http://lattes.cnpq.br/2338985038059708
The aim of this article is to identify the techniques used in cryopreservation of fish semen. The methodology used was the integrative review of articles on the topic researched on Capes' Journal Portal and nine articles were chosen to be analyzed, as they contained all the information analyzed by the researcher. A table was also developed which contains a summary of the technique used in cryopreservation, in particular the biotechnological aspects, such as: diluents, cryoprotectants, packaging, freezing, storage, thawing and the activating solution. A mental map of the cryopreservation technique was developed, from fresh semen preparation to thawing and eventual use. The bibliography analysis shows that glucose is the most used diluent, together with Dimethylsufoxide - DMSO, as an internal cryoprotectant, the product is packaged in straws or microtubes, freezing is mainly done using a Dry Shipper and subsequent storage in liquid nitrogen (-196ºC) and the thawing is done quickly and for a short time and the subsequent activation is done with sodium chloride or sodium bicarbonate. It is concluded that the technique is well described and there is already a protocol for the development of cryopreservation.
Plano de negócio para piscicultura ornamental em área urbana na cidade de Recife - Pernambuco
(2022-05-27) Sales, Dennys César Alexandre de; Santos, Juliana Ferreira dos; http://lattes.cnpq.br/6621907859216486; http://lattes.cnpq.br/5652245847264693
Worldwide, ornamental fish farming has been growing over the years and in Brazil, it is estimated that the development of this sector will follow this same trend. Knowing this, a business plan for an ornamental fish farm aims to trace a path to minimize errors and increase successes in the conditions of an enterprise described here. The species chosen for the present work is the guppy (Poecilia reticulata) of the full red lineage and the city where the company will be installed is Recife, state of Pernambuco. A positive point for installing the company in this region is the temperature, which has an annual average of 25.7°C, favoring the well-being of the species under study, as it has an ideal temperature between 23° and 28°C. Larviculture and fattening have an estimated time of 6 months, totaling under these conditions seven cycles in a year. In addition, the guppy is an easy-to-handle fish and has a good acceptance of inert food. The present work analyzed four scenarios with different quantities produced throughout the year (scenario 1 production of 5,292.00 fingerlings, scenario 2 production of 2,646.00 fingerlings, scenario 3 production of 3,969.00 fingerlings and scenario 4 with production of 4,410.00 fingerlings), with all scenarios presenting the same amount of invested capital, R$ 26,964.12. Scenario 1 was the one with the best results, with a return on invested capital in four years and five months, with annual net revenue of R$ 5,694.35. The other scenarios were not economically viable, as there was no payback. Among all the situations analyzed, scenario 1 was the one that presented economic viability, compared to the others.
Regulação fisiológica da butirilcolinesterase através do uso de aditivos alimentares e sua aplicação em rações para camarão marinho
(2023-04-19) Souza, Douglas Lemos de; Santos, Juliana Ferreira dos; http://lattes.cnpq.br/6621907859216486; http://lattes.cnpq.br/2715233041393261
Litopenaeus vannamei is the most cultivated crustacean species in the world, representing 51.7% of total production. In Brazil, the species leads the national shrimp farming earning about R$1.6 million. Seeking to optimize cultures, new methods of physiological regulation can generate important results. The investigation of the modulation of the action of enzymes in the endocrine/digestive systems is an alternative with the potential to obtain significant results. Recently, it was proposed that the enzyme butyrylcholinesterase (BChE) plays a role in the metabolism of ghrelin, known as the “hunger hormone” and may influence feed intake and productive performance. The present study aimed to investigate the in vitro effect of BChE inhibitors as a physiological tool using food additives and their application in marine shrimp diets. Juveniles of L. vannamei in the fattening phase (2g, 4g and 6g) were obtained from a local producer and enzyme activity tests were carried out in different tissues (eye, muscle and hepatopancreas) using the IC50 parameter (concentration that inhibits the enzymatic activity by 50%). Tests were carried out to evaluate the inhibitory effect of the following plants: arugula (Eruca sativa), Swiss chard (Beta vulgaris) and spinach (Spinacea oleracea). The best inhibition results were arugula IC50: 0.019μg/mL in 6g shrimp; chard IC50: 0.14μg/mL in 4g shrimp and spinach IC50: 0.20μg/mL in 4g shrimp, chard showed better results for use as an additive. The feed was processed, and inhibitor extracts were added to the feed, in different samples, using grain alcohol as an incorporating vehicle. The physical and bromatological evaluations were then conducted, in the physical tests the repelletized rations showed a difference only in apparent density, even the repelletized rations being denser the buoyancy was not affected, for the bromatological tests they only showed lower humidity, due to the time in the oven. It can be concluded that individuals of average weight (4 g) have greater BChE activity, suggesting that this phase is ideal for introducing feeds with BChE inhibitors and that the inclusion of additives in shrimp feed, using the repellent method, can be used without impairing the nutritional and physical quality of the feed.