Instituto Politécnico de Viseu
Repositório Científico
Entradas recentes
Bovine colostrum for animal nutrition and feed additive for poultry and aquaculture
Publication . Costa, José; Santos, Maria Isabel; Oliveira, Jorge; Rahul Mehra; Raquel P.F. Guiné; Harpal S Buttar; Shiv Kumar
Diversity and antimicrobial resistance profile of bacteria isolated from sheep mastitis and bulk-tank milk in the east-centre region of Portugal
Publication . Pereira, Maria; Baptista, Alexandra Lameira; Rosário, Mariana; Cruz, Rita; Esteves, Fernando; Madanelo, João; Nóbrega, Carmen; Mega, Cristina; Garcia, C.; Coelho, Catarina; Arede dos Santos, Carla Sofia; Malva, Madalena; Vala Correia, Helena Maria; Ferreira, Tiago
The microbiological quality of milk reflects both udder health and the subsequent contamination that can occur through direct and indirect reservoirs. This study aimed to identify bacterial diversity in milk samples from ewes with mastitis and in bulk-tank milk, and to investigate their antibiotic susceptibility/resistance profiles. A total of 232 milk samples were analysed and 22 bacterial species were isolated, with Staphylococcus aureus (20.3%) and S. epidermidis (18.6%) as the dominant species. The diversity of bacterial species isolated from the bulk-tank was higher and included 44 species, dominated by E. coli (20.6%), S. aureus (7.8%) and Hafnia alvei (7.2%). Antimicrobial susceptibility testing was performed on 217 bacterial isolates. E. coli isolated from individual milk samples revealed high rates of resistance to penicillins and tetracyclines, whereas S. aureus revealed high rates of resistance to aminoglycosides, polymyxin, sulfonamides and tetracycline, maintaining high levels of susceptibility to third generation cephalosporins, lincosamides, some macrolides, penicillins, phenicols and pleuromutilins. The resistance profile of bacteria isolated from the bulktank milk was more concerning than that of the milk of ewe with mastitis. These results point to the need to implement structural improvements on farms and raise awareness about strengthening biosecurity, medical prophylaxis and control of access to veterinary medicines to improve milk quality and reduce the use of antibiotics.
Health literacy and its determinants among pregnant women in Portugal
Publication . Ferreira, Nuno; Ferreira, Manuela; Santos, Eduardo José Ferreira; Ferreira, Sofia; Arriaga, Miguel Telo; Costa, Andreia
Background Health literacy is a key determinant of health outcomes and equity, particularly during pregnancy, a period marked by increased information needs and critical health decisions. Despite its importance, data on health literacy among pregnant women in Portugal remain scarce. This study aimed to assess general health literacy levels and their associations with sociodemographic, health-related, and pregnancy-specific factors in a large sample of pregnant women from the district of Viseu, Portugal. Methods A cross-sectional study was conducted with 886 pregnant women aged 18 years or older, using the validated HLS19-Q12 instrument to measure general health literacy. Data collection occurred between October 2023 and May 2024 using a multimodal approach (online, interview, and paper-based). Health literacy was categorized into four levels and also dichotomized as limited versus not limited. Descriptive statistics, bivariate analyses, and binary logistic regression were performed to identify determinants of limited health literacy. Results The mean general health literacy score was 68.3 (SD±10.9). A total of 46.7% of participants were classified as having limited health literacy. Among the pregnant women surveyed, 18.8% were born outside Portugal. Of these, 74.7% were classified as having limited health literacy, compared to 40.2% among Portuguese-born participants. Higher prevalence was observed among women aged 18–29, those born outside Portugal, with lower education, in undifferentiated professions, and facing financial hardship. In the final adjusted logistic regression model, which combined variables selected through forward stepwise inclusion with theoretically important covariates entered in a second block, significant predictors of limited health literacy included being born outside Portugal (adjusted OR 2.43; 95% CI: 1.56–3.80), having lower education (up to high school), holding lower-skilled occupations, financial difficulties, and rating current health as equal or worse. Pre-pregnancy Body Mass Index was also negatively associated with health literacy levels, with higher BMI more prevalent among women with limited health literacy. The model showed good discriminatory ability (area under the ROC curve=0.78). Conclusions A considerable proportion of pregnant women demonstrated limited health literacy, particularly among socioeconomically vulnerable and migrant groups. These findings underscore the urgency of adopting antenatal care approaches that are responsive to health literacy needs. Incorporating brief assessments during early prenatal visits, using plain language and visual communication tools, and offering targeted support to high-risk groups may enhance informed decision-making, promote equity, and improve maternal and neonatal outcomes.
Influence of the Training Process on the Health Literacy of Angolan Health Promoters
Publication . Ferreira, Manuela; Santos, Eduardo José Ferreira; Andrade, Joana; Figueiredo, Inês; Martins, Vitor; Margarida Campos, Sofia
Background: As part of the research project ‘Seigungo–Gungo’s Health, Education, and Maternal and Child Quality of Life: An Action-Research Project’, a study was conducted in the Gungo community in Angola, a region facing significant challenges in terms of access to healthcare and health literacy. The primary aim of the study was to evaluate the effectiveness of an intervention training model designed to improve the health literacy of the participants. Methods: The sample consisted of 30 trainees, 60% of whom were male, with an average age of 45.6 years. Most participants were single (53.3%) and had completed 6 years of formal education (26.7%). Health literacy levels were assessed using the HLS-EU-PT-Q16, a short 16-item questionnaire designed to assess three key domains: healthcare, disease prevention, and health promotion. These domains are related to the focus of the training programme. Data collection took place throughout the year 2024. Results: According to the data obtained, prior to attending the training program, 60% of the participants demonstrated an inadequate level of health literacy. Following the intervention, this percentage dropped significantly to 20%. In contrast, the proportion of participants with sufficient to excellent health literacy rose from 16.7% to approximately 40%. The results indicate that the training program had a positive and statistically significant impact on improving health literacy in the Gungo community. Conclusions: These findings highlight the importance of targeted training and sustained intervention efforts to address the specific health education needs currently affecting this community.
Dieta da parturiente de termo sem patologia associada: revisão sistemática da literatura
Publication . Rodrigues, Clara; Ferreira, Manuela; Margarida Campos, Sofia; Pousadas, Daniel; Igual, Ana; Pires, Ana; Firmo, Ana; Cosme, Ana; Santos, Eduardo José Ferreira; Coutinho, Emília
Introdução: A ingestão oral em trabalho de parto é praticada de forma inadequada em muitos hospitais e maternidades portugueses, com relatos onde o jejum é uma prática comum e é perpetuado de forma rotineira em todas as parturientes. Objetivo: Identificar a melhor evidência científica sobre qual a dieta mais adequada na parturiente de termo sem patologia associada. Métodos: Foi realizada uma Revisão Sistemática da Literatura (RSL) segundo o método da Joanna Briggs Institute (JBI) e foi redigida de acordo com o Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA 2020). Resultados: A pesquisa foi feita em 5 bases de dados, CINAHL Complete, B-On, PUBMED, MEDLINE Complete e Nursing & Allied Health Colection, no dia 30 de março de 2023. Foram utilizados descritores (MeSH) e termos em linguagem natural, com os operadores boleanos “AND” e “OR”. Os limitadores utilizados foram todos os estudos em língua inglesa, portuguesa e espanhola, com friso temporal de 5 anos. Foram avaliados e analisados para elegibilidade 67 artigos por dois revisores independentes e incluídos 11 artigos na revisão. Conclusão: Os estudos apontam os líquidos claros sem resíduos, ricos em hidratos de carbono e proteínas como a dieta mais adequada e segura em parturientes de termo sem patologia associada, e identificam inúmeros benefícios para a parturiente, para o trabalho de parto e parto, para o feto e recém-nascido.