Sejam bem-vindos ao Poraquê, o Repositório Institucional (RI) da Universidade Federal do Oeste do Pará (Ufopa). Nosso objetivo é armazenar, preservar, dar acesso e visibilidade à produção científica em formato digital da universidade. O nome Poraquê é uma alusão ao peixe-elétrico da Amazônia, em que seu corpo é capaz de produzir pulsos elétricos, é dito, que enxergar no escuro, logo, possui autonomia energética, capaz de acender uma lâmpada

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    Uso de probiótico multiespécies na fase de recria de Colossoma macropomum em sistema de bioflocos e água clara
    (Universidade Federal do Oeste do Pará, 2025-03-28) REIS, Gleika Tamires Jordão dos; CLAUDIANO, Gustavo da Silva; https://orcid.org/0000-0002-5063-9123; http://lattes.cnpq.br/6500363801545710; FUGIMURA, Michelle Midori Sena; https://orcid.org/0000-0002-1354-2277; http://lattes.cnpq.br/6107371291793259; https://orcid.org/0009-0003-1091-4180; http://lattes.cnpq.br/1882659772284380; FUGIMURA, Michelle Midori Sena; https://orcid.org/0000-0002-1354-2277; http://lattes.cnpq.br/6107371291793259; FERNANDES, Graciene do Socorro Taveira; https://orcid.org/0000-0002-2710-4251; http://lattes.cnpq.br/9121021285937589; MARCUSSO, Paulo Fernandes; http://lattes.cnpq.br/7590511974577384; VAZ, Luciano Jensen; https://orcid.org/0000-0003-2029-8011; http://lattes.cnpq.br/6586699572667482
    This study evaluated the effects of different strategies for the inclusion of a multispecies probiotic—administered via feed (PR), water (PA), or both (PAR)—in tão production systems, recirculating aquaculture system (RAS) and biofloc technology (BFT), on the zootechnical performance, body composition, physiological-immunological responses, and survival of Colossoma macropomum over a 70-day period. The BFT system presented higher pH, turbidity, and nitrite concentrations, while total ammonia levels were lower; conversely, the RAS maintained more stable water quality parameters (p < 0.05). Greater weight gain, productivity, and biomass were observed in the RAS under the PAR treatment (p < 0.05). Muscle protein content did not differ between systems (p > 0.05). Higher ash and lipid levels were detected in the RAS, although lipid content was reduced in fish receiving the PR treatment (p < 0.05). Hemoglobin and hematocrit levels were significantly higher in fish reared in BFT, whereas lower lactate concentrations were observed in the PA treatment (p < 0.05). Fish from the BFT system exhibited elevated levels of reactive oxygen species (ROS), serum lysozyme activity, and serum lytic activity (p < 0.05). Following a challenge with Aeromonas hydrophila, fish reared in RAS showed higher overall survival, while 100% survival was recorded in the BFT system under the PAR treatment (p < 0.05). These findings demonstrate that the interaction between production system and probiotic administration strategy can significantly enhance performance, health status, and disease resistance in juvenile tambaqui.
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    Utilização do extrato de própolis de abelhas sem ferrão (Scaptotrigona nigrohirta) na cicatrização de lesões cutâneas em codornas japonesas (Coturnix japonica).
    (Universidade Federal do Oeste do Pará, 2025-01-10) FERREIRA, Layza Beatriz Barroso; SANTOS, Graciene Conceição dos; http://lattes.cnpq.br/2569417574617114; MORINI, Adriana Caroprezo; https://orcid.org/0000-0001-8731-9935; http://lattes.cnpq.br/3113891989364351; https://orcid.org/0000-0002-9650-3934; http://lattes.cnpq.br/0365600689450321; MORINI, Adriana Caroprezo; https://orcid.org/0000-0001-8731-9935; http://lattes.cnpq.br/3113891989364351; CLAUDIANO, Gustavo da Silva; https://orcid.org/0000-0002-5063-9123; http://lattes.cnpq.br/6500363801545710; PACHECO, Aline; http://lattes.cnpq.br/9030426304036868; BERNAL, Marcella Katheryne Marques; https://orcid.org/0000-0002-7229-8585; http://lattes.cnpq.br/5799385461629130
    Wound healing is one of the most studied processes and, over time, man has developed several techniques and substances to optimize tissue repair. Among these, the use of propolis as a topical therapy has been frequently used in human and animal medicine. The application of propolis to wounds can reduce inflammation, improve vascularization, stimulate the formation of granulation tissue and reduce healing time. The objective of the study was to evaluate the efficacy of the alcoholic extract of propolis from stingless bees in the healing of skin lesions in Japanese quails. The propolis used was from the species Scaptotrigona nigrohirta. The propolis was collected, processed into a hydroalcoholic extract and subjected to analyses for the physicochemical and microbiological characterization of the propolis. Forty Japanese quails were used, distributed into 5 groups according to the healing time. Ointments with different concentrations of propolis extract (10% and 20%) were prepared and applied to induced lesions, with monitoring for 21 days. The wounds were classified according to the experimental dose/treatment: Treatment 1 (T1) - control wound, Treatment 2 (T2) - wound with application of dry extract ointment, Treatment 3 (T3) - wound with application of 10% liquid extract ointment and Treatment 4 (T4) - wound with application of 20% liquid extract ointment. The analysis included macroscopic and histological evaluations. The results revealed that, although the parameters of alcohol content and solubility were within the standards, the dry extract content and bioactive compounds presented levels below those required by current legislation. Microbiological tests, such as Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC), highlighted the efficiency of the extract in combating Salmonella typhimurium. The results showed that treatment with the propolis-based ointment accelerated the tissue regeneration process and reduced inflammation. Histological analyses showed the formation of granulation tissue, collagen and neovascularization, highlighting the potential of propolis as a healing agent in topical therapies. Keywords:
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    Práticas etnoveterinárias no Município de Oriximiná, Baixo Amazonas, Pará
    (Universidade Federal do Oeste do Pará, 2025-01-29) LIMA, Misael Brito de; TAUBE JÚNIOR, Paulo Sérgio; https://orcid.org/0000-0001-5786-7615; http://lattes.cnpq.br/9036985941582601; MORINI, Adriana Caroprezo; https://orcid.org/0000-0001-8731-9935; http://lattes.cnpq.br/3113891989364351; http://lattes.cnpq.br/0854746833471442; MORINI, Adriana Caroprezo; https://orcid.org/0000-0001-8731-9935; http://lattes.cnpq.br/3113891989364351; TAUBE JÚNIOR, Paulo Sérgio; https://orcid.org/0000-0001-5786-7615; http://lattes.cnpq.br/9036985941582601; TALGATI, Davia Marciana; BANDEIRA, Renato da Silva; http://lattes.cnpq.br/3913332521462583; MONTEIRO, Maria Vivina Barros; http://lattes.cnpq.br/5908000167831590
    Ethnoveterinary medicine is the science responsible for the study of ideas, practices, methods and knowledge used in the treatment of diseases in animals. This practice has been passed down from generation to generation through oral tradition. However, the current context, marked by rapid cultural changes, has led to the loss of much of this information, making it necessary to document this knowledge. In this context, this study aimed to conduct an ethnoveterinary survey in urban and rural areas of the municipality of Oriximiná, in the Lower Amazon region. For this purpose, six rural communities and six neighborhoods of the city were visited. The visits were carried out in homes with the supervision of Community Health Agents (CHAs). Semi-structured questionnaires were applied in the interviews, which addressed issues related to the use of plants or other natural products for treating diseases in animals. The use value (VU) of the cited species, Informant Consensus Factor (ICF) were calculated and a statistical test (T) was performed with a significance level of P < 0.05 to assess whether there were significant differences in the number of plants cited between the genera and by the interviewees in rural and urban areas. The results showed that of the 89 people who were aware of the use of natural products to treat diseases in humans and were interviewed in the municipality of Oriximiná, 57 (64%) of them also used these products to treat diseases in animals. Fifty species of plants used to treat diseases were cited in 11 different categories of use. The leaves and seeds were the most commonly used parts in medicinal preparations and the most common forms of use were tea and juice. Among the species mentioned, four of them stood out with the highest use values (VU), pião branco (Jatropha curcas L.) VU (0.38), copaiba (Copaifera duckei Dwyer) VU (0.32), urucum (Bixa orellana L.) V (0.29) and andiroba (Carapa guianensis Aubl.) VU (0.23). Regarding the informant consensus factor (ICF), four categories of use stood out: ICF poisoning (1), ICF dermatological disorders (0.83), ICF parasitosis (0.72) and ICF respiratory disorders (0.61). In addition to the use of medicinal plants, there were also reports of the use of products of animal origin, with the anaconda being the most cited animal species (43%) and lard as the most used byproduct. This work contributed to the cataloging of information regarding the use of ethnoveterinary practices by the population of Oriximiná, in addition to organizing an inventory of plant species and other natural products with therapeutic potential.
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    Análise epidemiológica das intoxicações exógenas no Estado do Pará: notificação da exposição de mulheres a agrotóxicos de 2007 a 2023
    (Universidade Federal do Oeste do Pará, 2025-02-27) SOUZA, Simone Imaculada Sardinha de; BARROS, Emerson Cristi de; https://orcid.org/0000-0002-9044-7994; http://lattes.cnpq.br/8801933458141018; LOPES, Ruy Bessa; https://orcid.org/0000-0002-4806-8835; http://lattes.cnpq.br/4195469692527946; http://lattes.cnpq.br/6515451160623537; LOPES, Ruy Bessa; https://orcid.org/0000-0002-4806-8835; http://lattes.cnpq.br/4195469692527946; TAUBE JÚNIOR, Paulo Sérgio; https://orcid.org/0000-0001-5786-7615; http://lattes.cnpq.br/9036985941582601; MOURA, Lucinewton Silva de; https://orcid.org/0000-0002-9266-946X; http://lattes.cnpq.br/2577499231565227; FERNANDES, Graciene do Socorro Taveira; https://orcid.org/0000-0002-2710-4251; http://lattes.cnpq.br/9121021285937589
    The use of pesticides in Brazil has increased significantly in recent decades, leading to numerous instances of exogenous poisoning. This study aims to describe the epidemiology of these poisonings that occurred in females, utilizing data from the Notifiable Diseases Information System (Sinan) in the State of Pará from 2007 to 2023. The study will be descriptive in nature, employing a mixed qualitative and quantitative approach, using secondary data from the Sinan database. Four inclusion criteria were used: (1) the period from 2007 to 2023, (2) toxic agents: agricultural, domestic, public health, veterinary, and rodenticide pesticides, (3) final classification as poisoning, and (4) female gender. A total of 911 notifications met these criteria. Using the Sinan exogenous poisoning report, two groups were selected with sociodemographic and exposure information, and within these groups, 13 variables were considered. These notifications were analyzed through descriptive statistics using graphs and tables. The results indicated that most of the poisonings occurred in women aged 20 to 34 years (27,76%), and the majority (80%) were residents of urban areas. Additionally, significant underreporting was observed among the elderly and minors. The analysis also revealed that rodenticides were the most reported toxic agents, accounting for 38% of the cases. Agricultural pesticides (22.61%) and domestic-use pesticides (13.61%) also stood out as frequent causes of poisoning. Moreover, 31.61% of the cases involved women whose pregnancy status was either not applicable or ignored, highlighting gaps in data collection regarding pregnant women. Regarding employment status, 11.42% of the poisonings occurred among unemployed women, suggesting the possibility of exposure in domestic or informal settings. Another significant finding is that 27.11% of the cases had unreported educational levels, which may hinder a more detailed analysis of the relationship between educational attainment and exposure. In conclusion, the evaluated data reveal concerning patterns, particularly among young women residing in urban areas, with low educational attainment, and frequent use of rodenticides. The high rate of poisoning through ingestion of these products, often linked to suicide attempts, points to the urgent need for interventions in mental health care and stricter control of pesticide use, especially in domestic environments.
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    Análise do impacto das mudanças climáticas e variabilidade natural do clima em produtos da bioeconomia da Região Norte – Amazônia- Brasil
    (Universidade Federal do Oeste do Pará, 2024-12-16) PEREIRA, Waldeir dos Santos; COSTA, Gabriel Brito; https://orcid.org/0000-0002-5254-489X; http://lattes.cnpq.br/0980355943575182; http://lattes.cnpq.br/3367942815484251; COSTA, Gabriel Brito; https://orcid.org/0000-0002-5254-489X; http://lattes.cnpq.br/0980355943575182; LARA, Túlio Silva; http://lattes.cnpq.br/4770463407331465; ANDRADE, Antônio Marcos Delfino de; http://lattes.cnpq.br/1598464572396546; SERUFFO, Marcos César da Rocha; https://orcid.org/0000-0002-8106-0560; http://lattes.cnpq.br/3794198610723464
    The primary objective of this research is to establish cause-effect relationships between climate changes/natural climate variability and the production of bioeconomy products in Brazil's Northern region. It focuses on crops such as avocado, pineapple, cocoa, beans, guava, cassava, and annatto. The study uses data from the IBGE's Automatic Recovery System for Aggregated Data (SIDRA), covering production (in tons), planted area (in hectares), and harvested area (in hectares). These are correlated with total rainfall and annual mean maximum air temperatures for the Northern region, sourced from the Climate Engine platform. The results indicate a clear association between warmer, drier years and the occurrence of El Niño events, whereas wetter, cooler years align with La Niña phenomena. The study analyzed climate variability from 1994 to 2023 in Northern Brazil and its impact on various agricultural crops, correlating precipitation, temperature, and production. Findings reveal that phenomena like El Niño and La Niña significantly influence rainfall patterns, affecting crops like cassava, beans, avocado, and annatto. While wetter years with moderate temperatures enhance productivity, dry and wet periods, such as 2023, are linked to significant declines in agricultural production. Cassava was found to be the most sensitive to climatic conditions, with reduced productivity during dry years. Beans and annatto also showed precipitation dependence, whereas avocado production experienced a continuous decline due to adverse climate and economic factors. Cocoa and pineapple stood out for their climate resilience, supported by technological innovations and irrigation. The analysis concludes that climate changes, such as rising temperatures and irregular rainfall patterns, pose a threat to agricultural sustainability in the region, especially for climate-sensitive crops. Adaptive management strategies and technologies will be crucial to mitigate the anticipated impacts.