Detection of Ehrlichia chaffeensis in Brazilian marsh deer (Blastocerus dichotomus)     

Machado RZ  Duarte JM  Dagnone AS  Szabó MP 《Veterinary parasitology》2006,139(1-3):262-266

Ehrlichia chaffeensis was detected for the first time in blood samples from Brazilian marsh deers (Blastocerus dichotomus) captured in the marshes of Parana River in Southeast Brazil in 1998. Seven EDTA-blood samples from deers were analyzed by PCR and nested PCR for presence of Ehrlichia chaffeensis, Ehrlichia ewingii, Ehrlichia canis, Neoriickettsia risticii, Anaplasma phagocytophilum and Anaplasma marginale. Three samples showed positive reactions for E. chaffeensis and Anaplasma marginale. None contained detectable A. phagocytophilum, E. ewingii, E. canis or Neorickettsia risticii DNA. In Brazil, the wild marsh deer may be a natural reservoir of the agents that cause human monocytotropic ehrlichiosis and ruminant erythrocytic anaplasmosis.  相似文献   

Longitudinal growth of infants born to HIV-1-infected mothers in Belo Horizonte, Brazil     

Fausto MA  Carneiro M  Antunes CM  Colosimo EA  Pinto JA 《Public health nutrition》2009,12(6):783-788

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Vaccination strategies with oral booster for surubim hybrid (Pseudoplatystoma corruscans × P. reticulatum) against haemorrhagic septicaemia          下载免费PDF全文

Gabriella do Vale Pereira  Bruno Corrêa da Silva  Felipe do Nascimento Vieira  Walter Quadros Seiffert  Thiago Tetsuo Ushizima  José Luiz Pedreira Mouriño  Maurício Laterça Martins 《Aquaculture Research》2015,46(8):1831-1841

This study evaluated the efficiency of differently prepared vaccines against Aeromonas hydrophila in the hybrid surubim (Pseudoplatystoma corruscans × P. reticulatum). Survival and haemato‐immunological parameters were compared between the treatments: non‐vaccinated fish (C); bacterin‐vaccinated fish (B); bacterin plus oral booster vaccinated fish (B+O); bacterin and toxoid‐vaccinated fish (B+T) and bacterin, toxoid and oral booster‐vaccinated fish (B+T+O). Fourteen‐days vaccinated fish from B+O and B+T+O were fed with an oral booster for 4 days. After 1 week, the fish were intraperitoneally challenged with 2 × 10⁸ CFU mL^?1 of A. hydrophila. Fish from the treatment B+T+O showed the lowest cumulative mortality (11.36%) 96 h after challenge, compared with other treatments (22.72–44.04%), and a relative survival of 74%. Serum immunoglobulin in B+T+O fish was higher than in other treatments. All vaccinated fish showed an increased agglutination titre when compared with non‐vaccinated fish, both before and after challenge. Fish fed with oral booster showed an increase in phagocytic percentage before and after challenge. It can be inferred that the oral booster vaccination was efficient in reducing mortality in hybrid surubim by enhancing the response against haemorrhagic septicaemia due to A. hydrophila infection.  相似文献   

The restoration of termite diversity in different reforestated forests     

Reniel Chaves de Paula  Roberto de Moraes Lima Silveira  Maurício Martins da Rocha  Thiago Junqueira Izzo 《Agroforestry Systems》2016,90(3):395-404

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Carmustine, vincristine, and prednisone in the treatment of canine lymphosarcoma     

Ricci Lucas SR  Pereira Coelho BM  Marquezi ML  Franchini ML  Miyashiro SI  De Benedetto Pozzi DH 《Journal of the American Animal Hospital Association》2004,40(4):292-299

A chemotherapeutic protocol using carmustine in combination with vincristine and prednisone was tested in dogs with multicentric malignant lymphosarcoma. Of seven dogs treated, six (85.7%) achieved complete remission. A partial response occurred in one dog. Median survival time was 224 days (mean 386 days), and median duration of remission was 183 days (mean 323 days). Marked neutropenia was observed following carmustine administration. There were no significant alterations in platelets and red blood cell counts during treatment, and no abnormalities attributable to the chemotherapy were found in serum biochemical profiles. Results of this study showed that carmustine is an effective alternative option in the treatment of canine lymphosarcoma.  相似文献   

Hematology of free-living marsh deer (Blastocerus dichotomus) from southeast Brazil.     

Matias Pablo Juan Szabó  Eliana Reiko Matushima  Márcio Botelho de Castro  Danilo Alvaro Santana  Cátia Dejuste de Paula  José Maurício Barbanti Duarte 《Journal of zoo and wildlife medicine》2005,36(3):463-469

This work reports basic hematologic values of a sample of a population of free-living marsh deer (Blastocerus dichotomus) living by the Paraná River in Southeast Brazil. Hematologic values are presented separately for male, female, and young animals as well as for anesthetized and nonanesthetized cervids. Nonanesthetized deer restrained by physical means had significantly higher erythrocyte indices and total leukocyte counts. Comparisons of blood parameters of anesthetized animals of different ages and gender differed slightly, with only two significant differences observed: young animals had significantly higher red blood cell counts than adult males and a lower blood total protein content when compared to adult females. Results indicate that two main reference ranges for blood values should be considered for marsh deer, for blood obtained from anesthetized or physically restrained individuals.  相似文献   

Impact of soil types on sugarcane development monitored over time by remote sensing     

Amorim  Merilyn Taynara Accorsi  Silvero  Nélida E. Q.  Bellinaso  Henrique  Gómez  Andrés Maurício Rico  Greschuk  Lucas T.  Campos  Lucas Rabelo  Demattê  José A. M. 《Precision Agriculture》2022,23(5):1532-1552

Soil is one of the most important factors for agricultural production. In tropical regions, soil variability is considerable, with the most diverse combinations of physical and chemical characteristics, an influence factor in crop growth and productivity. In this research, the main objective was to identify how soil characteristics and parent material can influence sugarcane development over time using remote sensing. An area located in Sao Paulo, Brazil, of 182 ha (one point per ha with soil analysis), with high variability in the parent material and soil types, was selected. Images from the Sentinel2-MSI satellite were used to describe the spectral behavior of sugarcane over a period of one year. The NDRE (normalized difference red-edge index) was calculated for each image and then the leaf area index (LAI) was obtained from it. Maps of soil classes, soil properties at two depths (0–0.20 and 0.80–1.0 m), and parent material classes were related to sugarcane LAI variability over time. Production environment zones, which is a classification based on soil characteristics to support sugarcane development, were also obtained and related to LAI variability. Spectral signatures of the crop presented different behaviors through the season, soil types and soil attributes provided useful responses for this variability. At the beginning of the season, the surface and subsurface soil properties (texture and fertility) impacted differently on crop development. On the other hand, soil classes and parent material influenced LAI in all production environments studied. The results indicated that the soil types and their properties at different depths have a significant impact on sugarcane development. Furthermore, RS was able to monitor the plant evolution and be related to soil types which may assist in plant management. The results can bring light on how better sugarcane management can be conducted using remote sensing data and soils variability.

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Mortality,hematology, and histopathology of common snook Centropomus undecimalis (Perciformes: Centropomidae) exposed to acute toxicity of ammonia     

Fabiola Pedrotti  Maurício Laterça Martins  Manecas Baloi  Caio Magnotti  Fernanda Scheuer  Fabio Sterzelecki 《Journal Of Applied Aquaculture》2018,30(3):272-284

This study aimed to evaluate the tolerance of common snook Centropomus undecimalis larvae and juveniles exposed to acute concentrations of un-ionized ammonia for 96 h at 35g L^?1 salinity, after 24 h starvation. For that, 10 larvae (20.85 ± 1.46 mm) of 47 days post hatch (DPH) per experimental unit (1.5 L) were exposed to 0.00 ± 0.00, 0.65 ± 0.04, 1.29 ± 0.09, 2.59 ± 0.18, 3.88 ± 0.27, 5.17 ± 0.34, and 6.47 ± 0.43 mg L^?1 NH₃, in triplicates, at 26.72 ± 0.08°C, dissolved oxygen at 5.72 ± 0.10 mg L^?1 and pH 8.45 ± 0.06. During this period, no mortalities were observed. Another trial was performed with five juveniles (20.35 ± 6.10 g, 13.90 ± 1.75 cm) per experimental unit (60 L) exposed to 0.00 ± 0.00, 2.26 ± 0.07, 2.68 ± 0.11, 3.20 ± 0.13, 3.68 ± 0.17, and 4.27 ± 0.16 mg L^?1 NH₃, in triplicates, at 21.90 ± 0.76°C, dissolved oxygen at 6.27 ± 0.21 mg L^?1 and pH at 8.38 ± 0.04. Fish mortality increased as ammonia concentrations increased at each day, and LC₅₀ 96 h was 3.52 mg L^?1 NH₃. Larvae were less sensitive than juveniles, demonstrating that the environmental toxicity of ammonia to common snook is influenced by age. Sublethal exposition to ammonia caused histological damages in gills of common snook juveniles and variation on glucose levels, hematocrit, and red blood cells number, showing negative effects on fish homeostasis. Moreover, compared to other species, the common snook has great resistance to ammonia.  相似文献   

Estimated Reduction in Solids During Sheep Bedding Composting as a Function of the Composition of the Organic Fractions     

Marco Antonio Previdelli Orrico Junior  Ana Carolina Amorim Orrico  Débora Maurício Manarelli  Walter Renato Teixeira Lopes  Alice Watte Schwingel 《Compost science & utilization》2018,26(2):91-97

The different organic matter fractions of residues significantly impact the degradability of organic material in composting windrows. Based on that, this study aimed to find out the organic matter fractions that most impact the breakdown rate during composting, besides proposing models to estimate the solids reductions in sheep bedding composting windrows. To that end, 24 sheep beddings from different locations and varied composition were composted so as to ensure the representativeness of the sample. The models found for reduction in total (TS) and volatile (VS) solids as a function of compostable organic matter (COM) and organic matter resistant to composting (OMRC) were not significant. Lignin had correlation coefficients of ?0.6, ?0.89, and ?0.84 in relation to temperature, TS reduction, and VS reduction, respectively. The hemicellulose:lignin ratio was the parameter most correlated with temperature (0.69), TS reduction (0.91), VS reduction (0.92), and nitrogen (0.5), which led to more significant predictive models. It can be concluded that the hemicellulose:lignin ratio is the parameter that most impacts the breakdown of organic matter and nitrogen losses in sheep bedding composting windrows.  相似文献   

Comparison of the surface properties of reused brazilwood (Caesalpinia echinata) and imbuia (Ocotea porosa) to peach palm (Bactris gasipaes) plantation-wood     

A. P. P. Pinheiro  M. H. P. Maurício 《Wood material science & engineering》2017,12(5):295-300

This work deals with characterization of the wear behavior of woods obtained from agribusiness waste and from post-consume items. The main goal on this research is to generate data that could contribute to highlight the engineering performance of endangered wood species, and enhance reintroduction of these species to natural environment. Post-consume samples from Brazilwood (Caesalpinia echinata) and imbuia (Ocotea porosa), and also from the pseudo-stem of peach palm (Bactris gasipaes) were tested and their abrasion behavior was characterized both mechanically and morphologically. The results obtained showed that the wear rate of the tested materials was dependent of their density, and that the pseudo-wood obtained from peach palm has a performance similar to that of several commonly used woods.  相似文献