Context: Sustainable agricultural production in semiarid regions is limited by water scarcity and soil degradation. Forage cactus (Opuntia stricta) has high drought tolerance but requires effective water and soil management to maximize yield. Objective: To evaluate the effects of mulching and intercropping with gliricidia and moringa, under treated wastewater irrigation, on forage cactus productivity and soil p...
Caatinga biome, located in the Brazilian semi-arid region, is the most populous semi-arid region in the world, causing intensification in land degradation and loss of biodiversity over time. The main objective of this paper is to determine and analyze the changes in land cover and use, over time, on the biophysical parameters in the Caatinga biome in the semi-arid region of Brazil using remote sensing. Landsat-...
This study aimed to analyze the principal components of the meteorological variables, physiological and behavioral response of cows subjected to different cooling times and their influence on milk quality, in the dry and rainfall periods, and to establish multiple regression models for milk quality. The data used in the study came from an experiment conducted in the Agreste Region of Pernambuco. The pre-milking...
Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Faculdade de Ciência da Informação, 2019.; Submitted by Luanna Maia (luanna@bce.unb.br) on 2021-07-30T17:38:57Z No. of bitstreams: 1 2019_MarcosViniciusDaSilva_tcc.pdf: 1072934 bytes, checksum: 60291b6161995aa0e3ce48be8a6f3ec8 (MD5); Approved for entry into archive by Luanna Maia (luanna@bce.unb.br) on 2021-07-30T17:40:04Z (GMT) No. of bitstre...
The aim of this study was to employ the principal component technique to physiological data and environmental thermohygrometric variables correlated with detection of clinical and subclinical mastitis in dairy cattle. A total of 24 lactating Girolando cows with different clinical conditions were selected (healthy, and with clinical or subclinical mastitis). The following physiological variables were recorded: u...
Monografia (graduação)—Universidade de Brasília, Instituto de Letras, Departamento de Línguas Estrangeiras e Tradução, Línguas Estrangeiras Aplicadas ao Multilinguismo e à Sociedade da Informação, 2015.; Submitted by Cristiane Maria Mendes (mcristianem@gmail.com) on 2015-02-02T16:06:50Z No. of bitstreams: 1 2015_MarcosViniciusDaSilva.pdf: 780216 bytes, checksum: fc61853428e50d6adbe708311cf9558b (MD5); Approved ...
A 2 years old child living in an area of the State of São Paulo, known in the past as endemic for rickettsiosis developed clinical evidences of spotted fever after a tick bite. Rickettsiae were isolated from guinea pigs inoculated with a skin homogenate. In sera tested by indirect immunofluorescence with Rickettsia rickettsii standard antigen, IgG specific antibody titers raised from 1:512 in the first sample t...
The dot-enzyme-linked immunosorbent assay (dot-ELISA) was standardized using somatic (S) and excretory-secretory (ES) antigens of Toxocara-canis for the detection of specific antibodies in 22 serum samples from children aged 1 to 15 years, with clinical signs of toxocariasis. Fourteen serum samples from apparently normal individuals and 28 sera from patients with other pathologies were used as controls. All sam...
O teste imunoenzimático (ELISA) foi avaliado para detecção de anticorpos da classe IgA na leptospirose humana. Nas amostras de soro analisadas o teste demonstrou ser sensível e específico, quando comparado ao teste ELISA-IgM. Os resultados encontrados sugerem que os anticorpos da classe IgA aparecem tardiamente na leptospirose, e poderão ser um marcador sorológico evolutivo na progressão da doença; An Enzyme-li...
Thirty-seven sera samples from patients with leptospirosis icterohaemorrhagic form were studied with a time interval of 2 to 12 days between the beginning of the symptoms and the collection blood samples. It was isolated leptospira of 5 patients' heinocultures (13.5%) and from 4 of these the etiological agent pertained to the serogroup Icterohaemorrhagiae serovar copenhageni. Thirty-five of them (94.6%), includ...