Nitrous oxide emission from excreta of different beef cattle breeds finished in feedlot

O objetivo deste trabalho foi comparar as emissões de óxido nitroso (N2O) pela urina e pelas fezes de bovinos Nelore e mestiços (Nelore x Angus) terminados em confinamento. Vinte bois Nelore e 20 mestiços foram alimentados com dieta composta de 75% de concentrado e 25% de volumoso. As excretas foram aplicadas nos currais após 43 dias de confinamento, quando se iniciou o monitoramento de N2O por meio de câmaras estáticas. Os dados foram submetidos à análise de variância, e as médias foram comparadas pelo teste de Tukey. Os fluxos de N2O da urina e das fezes foram semelhantes entre as raças, com picos importantes após a ocorrência de chuvas. As emissões cumulativas de N2O da urina por quilograma de ganho de peso corporal (GPC) e as emissões totais das fezes por quilograma de GPC foram 22,7% e 24,4% maiores na raça Nelore. Não há efeito da raça sobre o fluxo de N2O e as emissões cumulativas de excretas de bovinos de corte confinados; entretanto, o gado mestiço emite menos por quilograma de GPC. Há alta correlação entre o volume de chuva e as emissões de N2O do dia seguinte, o que indica um período entre a ocorrência de chuva e o aumento da emissão de N2O.The objective of this work was to compare nitrous oxide (N2O) emissions from urine and manure of Nellore and crossbred (Nellore x Angus) cattle finished in feedlot. Twenty Nellore and 20 crossbred bulls were fed a diet consisting of 75% concentrate and 25% roughage. Excreta were applied to the pens after 43 days of confinement, when N2O monitoring started through static chambers. The data were subjected to the analysis of variance, and averages were compared by Tukey’s test. The N2O fluxes from urine and manure were similar among the breeds, with important peaks after rain events. The cumulative emissions of N2O from urine per kilogram of body weight gain (BWG) and the total emissions from manure per kilogram of BWG were 22.7% and 24.4% higher in Nellore cattle. There is no breed effect on N2O flux and cumulative emissions by excreta from confined beef cattle; however, the crossbreed emits less per kilogram of BWG. There is a high correlation between rainfall volume and the N2O emissions of the next day, which indicates a period between rain occurrence and the increase in N2O emission

Nitrous oxide emission from excreta of different beef cattle breeds finished in feedlot

Abstract The objective of this work was to compare nitrous oxide (N2O) emissions from urine and manure of Nellore and crossbred (Nellore x Angus) cattle finished in feedlot. Twenty Nellore and 20 crossbred bulls were fed a diet consisting of 75% concentrate and 25% roughage. Excreta were applied to the pens after 43 days of confinement, when N2O monitoring started through static chambers. The data were subjected to the analysis of variance, and averages were compared by Tukey’s test. The N2O fluxes from urine and manure were similar among the breeds, with important peaks after rain events. The cumulative emissions of N2O from urine per kilogram of body weight gain (BWG) and the total emissions from manure per kilogram of BWG were 22.7% and 24.4% higher in Nellore cattle. There is no breed effect on N2O flux and cumulative emissions by excreta from confined beef cattle; however, the crossbreed emits less per kilogram of BWG. There is a high correlation between rainfall volume and the N2O emissions of the next day, which indicates a period between rain occurrence and the increase in N2O emission

Catálogo Taxonômico da Fauna do Brasil: setting the baseline knowledge on the animal diversity in Brazil

The limited temporal completeness and taxonomic accuracy of species lists, made available in a traditional manner in scientific publications, has always represented a problem. These lists are invariably limited to a few taxonomic groups and do not represent up-to-date knowledge of all species and classifications. In this context, the Brazilian megadiverse fauna is no exception, and the Catálogo Taxonômico da Fauna do Brasil (CTFB) (http://fauna.jbrj.gov.br/), made public in 2015, represents a database on biodiversity anchored on a list of valid and expertly recognized scientific names of animals in Brazil. The CTFB is updated in near real time by a team of more than 800 specialists. By January 1, 2024, the CTFB compiled 133,691 nominal species, with 125,138 that were considered valid. Most of the valid species were arthropods (82.3%, with more than 102,000 species) and chordates (7.69%, with over 11,000 species). These taxa were followed by a cluster composed of Mollusca (3,567 species), Platyhelminthes (2,292 species), Annelida (1,833 species), and Nematoda (1,447 species). All remaining groups had less than 1,000 species reported in Brazil, with Cnidaria (831 species), Porifera (628 species), Rotifera (606 species), and Bryozoa (520 species) representing those with more than 500 species. Analysis of the CTFB database can facilitate and direct efforts towards the discovery of new species in Brazil, but it is also fundamental in providing the best available list of valid nominal species to users, including those in science, health, conservation efforts, and any initiative involving animals. The importance of the CTFB is evidenced by the elevated number of citations in the scientific literature in diverse areas of biology, law, anthropology, education, forensic science, and veterinary science, among others

Entrecruzamento de desigualdades: gênero e maternidade na carreira de médicas de família e comunidade

The growing trend towards the feminization of Family Practice puts on the agenda of scholars the concern with the factors and impacts of this trend in the trajectories of female medical careers, especially those who are working in peripheral areas. The aim of the study, from which this article results, was to understand how medical women justify their choices and permanence in the Family Practice career, while working in contexts considered potentially violent. We carried out a qualitative study, which dialogues with aspects of cartography, based on interviews with eight family doctors, who settled in areas of high social vulnerability in a Brazilian capital. The analysis of the statements pointed to gender as the major axis of category of difference highlighting the momentum exercised by maternity, the concept of gender understood in its intersectional dynamics. Our study identified that the duty of care persists impacting women's decision-making, (re)defining the balance between personal/family life and (de)limiting their career trajectories.O estudo da crescente feminização da área da Medicina de Família e Comunidade coloca na agenda de estudiosos a preocupação com os fatores e impactos dessa tendência nas trajetórias das carreiras das médicas, principalmente daquelas que estão exercendo suas atividades em áreas periféricas. O objetivo do estudo do qual resulta este artigo foi compreender como as médicas justificam suas escolhas e permanências no exercício da Medicina de Família e Comunidade, mesmo em contextos considerados potencialmente violentos. Realizamos uma investigação de caráter qualitativo, que dialogou com aspectos da cartografia, a partir de entrevistas realizadas com oito médicas de família que se fixaram em áreas de alta vulnerabilidade social em uma capital brasileira. A análise dos enunciados apontou para o gênero como o eixo marcador de diferença, destacando o empuxo exercido pela maternidade, o conceito gênero em sua dinâmica interseccional. Identificamos que a responsabilização pelo cuidado permanece impactando o processo decisório das mulheres, (re)definindo o equilíbrio entre vida pessoal/familiar e trabalho e (de)limitando as trajetórias de suas carreiras

Tomographic imaging of lunulae in capybara knees

The lunulae, ossification of the meniscus, are found in several species of rodents. Some studies suggest that the lunulae may be anatomical features, because there are not any pathological findings in microscopy. The objective of this study was to investigate the presence of lunulae in capybara knees, the world's largest rodent, by simple tomographic scans and three-dimensional reconstruction. For this purpose, we used two adult capybaras, in which both knees were evaluated. The lunulae were visualized with three-dimensional images, and revealed a total of two cranially. With the presence of lunulae confirmed, the capybara may be included in the group of rodents that have this structural feature, which can also contribute to the distinction between pathological processes and normal anatomic structures on imaging tests

Analysis of the Coping Strategies of Primary Health Care Professionals: Cross-Sectional Study in a Large Brazilian Municipality

Objective: To analyze the coping strategies used by primary healthcare (PHC) professionals. Methods: A cross-sectional, descriptive-analytical study realized with professionals working in primary healthcare units in São José do Rio Preto, a large city in the interior of São Paulo, Brazil. For data collection, we used an instrument developed by the researchers containing sociodemographic and professional variables, as well as the Problem Coping Modes Scale (EMEP). Results: We evaluated 333 PHC professionals. A difference was observed between the scores of the four coping strategies (p < 0.001), with the highest score for the problem-focused strategy (3.8) and the lowest score for the emotion-focused strategy (2.4). Physicians had the lowest scores in coping strategies focused on religious practices/fantastical thinking (p < 0.001) and pursuit of social support (p = 0.045), while community health agents had the highest scores in these coping strategies. Conclusions: Professionals working in PHC have different coping strategies for the problems and stressful situations experienced in the work environment. These strategies can involve more positive attitudes focused on confrontation and problem solving, and on emotional responses that involve attitudes of avoidance and denial of the problem

Anti-CHIKV IgG by ELISA Seroprevalence in the Population Study between 2015 and 2019 According to Age and Sex.

Anti-CHIKV IgG by ELISA Seroprevalence in the Population Study between 2015 and 2019 According to Age and Sex.</p

Chikungunya-confirmed cases in São José do Rio Preto (SJRP), SP, between 2015 and 2019, according with epidemiological bulletins.

Chikungunya-confirmed cases in São José do Rio Preto (SJRP), SP, between 2015 and 2019, according with epidemiological bulletins.</p