This study aimed to evaluate the behavior and thermal comfort of 20 Girolando cows (5/8-H/G), with light and dark coats, in the wettest period of the year, in Santarém, Pará, Brazil, in pasture with access to shade, and plenty of drinking water and mineral salt. Animal behavior categories were computed for 12 h a day, on 3 days in a row, by trained observers. Three day shifts were considered: Morning (6:00 a.m. to 9:55 a.m.), Intermediate (10:00 a.m. to 01:55 p.m.) and Afternoon (2:00 p.m. to 05:55 p.m.). The Temperature Index (TI), the Black Globe Humidity Index (BGHI) and the Comfort Index (CI) were calculated to measure thermal comfort. At all times studied, BGHI pointed that the environment was outside the thermal comfort zone. Dark-coated animals spent more 34.26% of the time in activities in the shade. The light-coated animals remained more 11.88% of the time in the sun, performing their natural behaviors. Both light and dark coat animals remained more 77 and 74.44% of the time in the sun, respectively. The behavior “in the sun while grazing” was the most evident, in both coats, in the studied shifts. The behaviors “in the shade while walking” and “in the shade while standing idle” were more evident (p < 0.01) in dark-coated cattle. The grazing behavior was higher in animals with dark coat (p < 0.05). In all evaluated shifts, there was a positive correlation between the behavior “in the sun while grazing” with the CI (r = 0.44211; p < 0.0305). Behaviors performed in the shade, such as “idleness while lying down,” “ruminating while lying down and standing up,” and behaviors “in the sun,” “idleness while lying down” and “ruminating while lying down,” were negatively correlated with CI. It is concluded that, even in the wettest period of the year, in the Eastern Amazon, Girolando dairy cows are exposed to hot environments, which causes thermal discomfort and changes in their natural behavior, as they spend more time standing in shaded areas, usually in rumination. Also, light-coated cows spend more time in the sun, while dark-coated cows spend more time in the shade. Thus, light-coated cows tend to have health and zootechnical performance negatively affected.

Thermal stress causes severe effects on the wellbeing and reproduction of cattle, including changes in oogenesis and spermatogenesis, generating great concerns, which last for decades. In cattle, the occurrence of thermal stress is associated with a reduction in the production of spermatozoids and ovarian follicles, in addition to the increase of major and minor defects in gametes or in their intermediate stages. In bovine females able to reproduce, a reduction in the rate of estrus manifestation and an increase in embryonic mortality has been observed. Therefore, keeping animals on good welfare conditions, with water supply and in shaded areas can favor the improvement of different reproductive parameters. For all this, the present study aimed to gather, synthesize and argue recent studies related to animal welfare, focusing on the effects of thermal stress on the reproduction of cattle, aiming to support possible strategies to mitigate the harmful effects of thermal stress in this species.

O objetivo neste estudo foi analisar a percepção de risco no uso de agroquímicos quanto a utilização e descarte das embalagens vazias em hortas no município de Santarém, Pará. O estudo foi realizado no município de Santarém, Pará, com o intuito de verificar a percepção dos produtores que utilizam agroquímicos em hortas, assim, foram realizadas entrevistas in loco com aplicação de questionário contendo 10 perguntas de caráter aberto e fechado, sendo avaliadas 7 comunidades produtoras de hortaliças (Área Verde, Cristo Rei, Floresta, Jutaí, Mararu, Tabocal e Urumanduba), totalizando 30 agricultores. Analisando os resultados, observou-se que todos os produtores respeitam o período de carência e grande parte faz uso de métodos convencionais, seguindo principalmente as instruções do rótulo, observou-se também que a maioria dos produtores recebe orientação de profissionais com conhecimento técnico sobre o assunto. Percebeu-se que o agroquímico mais adotado foi o inseticida, além disso, apenas uma pequena parte dos produtores utiliza equipamento de proteção individual completo e a maioria realiza a lavagem das roupas após a utilização, entretanto, não realizam a tríplice lavagem das embalagens vazias. Por fim, pode-se perceber que grande parte dos produtores não tem conhecimento sobre o posto de coleta e descartam a embalagem dos agroquímicos principalmente no lixo. Diante do exposto, conclui-se que os produtores de hortaliças do município de Santarém não fazem o descarte correto das embalagens vazias de agroquímicos, descartando-as em ambiente inadequado, sendo que nenhum produtor devolveu a embalagem no posto de coleto conforme preconiza a legislação brasileira.

The climate can lead to the emergence of environments conducive to the proliferation of dengue vectors, in addition to diseases and illnesses related to climatic phenomena. In this context, it is necessary to relate the exposure devices, that is, as associated variables associated with dengue cases. The objective of this research was to carry out a retrospective epidemiological study, with an emphasis on sex, age group and municipalities reporting dengue cases, as well as to correlate the cases of the disease with rainfall levels, in the state of Pará, Brazil. The correlation between rainy periods, transition from rainy to less rainy (C-MC) and less rainy to rainy (MC-C) showed a statistical correlation (p <0.05) with dengue cases in the period studied. Thus, it was found that dengue cases had an increase in the year subsequent to 2018, in which the majority were women with complete high school, in the age group of 20 to 39 years old. Given this scenario, the analysis of epidemiological data is important so that preventive measures and control of the agent are adopted by the government.Keywords: clinical-laboratory; epidemiological; gender; age group. Correlação de casos de dengue e precipitação pluviométrica, no estado do Pará, Brasil (2014 a 2019) RESUMOO clima pode levar ao surgimento de ambientes propícios à proliferação de vetores da dengue, além de doenças e enfermidades relacionadas aos fenômenos climáticos. Nesse contexto, é necessário relatar os mecanismos de exposição, ou seja, as variáveis climáticas associada aos casos de dengue. O objetivo desta pesquisa foi realizar um estudo epidemiológico retrospectivo, com ênfase no sexo, faixa etária e municípios que notificaram casos de dengue, bem como correlacionar os casos da doença com os níveis de precipitação, no estado do Pará, Brasil. A correlação entre os períodos chuvoso, transição de chuvoso para menos chuvoso (C-MC) e menos chuvoso para chuvoso (MC-C) apresentou correlação estatística (p <0,05) com os casos de dengue no período estudado. Assim, constatou-se que os casos de dengue aumentaram no ano subsequente a 2018, em que a maioria eram mulheres com ensino médio completo, na faixa etária de 20 a 39 anos. Diante desse cenário, a análise dos dados epidemiológicos é importante para que medidas preventivas e de controle do agente sejam adotadas pelo poder público.Palavras-chave: clínico-laboratorial; epidemiológico; Gênero sexual; grupo de idade.

The work aims to study the economical losses of the condemnation of bovine and buffalo carcasses, in order to estimate the losses in animals slaughtered in Santarém-Pará, Brazil, between 2016 and 2018, with data obtained from the Municipal Department of Agriculture and Fisheries. Sex, age, origin, total number of animals slaughtered and causes of condemnation of carcasses were considered. All analyzes were performed in RStudio version 1.1.463. In this study, 71,277 bovine carcasses and 2,016 buffalo carcasses were inspected, of which 300 bovine and 71 buffalo were condemned. The highest prevalence of causes of condemnation in cattle was recorded for brucellosis (0.0020%) and tuberculosis (0.0019%). In buffaloes, tuberculosis (0.0307%) peritonitis (0,0019%) were the main causes of condemnations. Economical losses were more evident in females, for both species. The projection of economical losses related to the condemnation of carcasses showed a sharp growth for the next three years, if the average growth remains constant. The biggest projected loss was for bovine females, with an accumulated projection of $ 5,451.44. The smallest estimated loss was for buffalo males, projected at more than thirty-two thousand reais. The most important causes of condemnation report the diseases brucellosis and tuberculosis, as the ones with the greatest impact. In the buffalo species this was even more accentuated, even though the number of buffaloes slaughtered is more than 35 times smaller than the number of cattle.