Prevalence and prognostic role of L wave and selected clinical and echocardiographic variables in dogs with atrial fibrillation     

Giovanni Romito  Stefana Darida  Carlotta Valente  Helen Poser  Barbara Contiero  Mario Cipone  Carlo Guglielmini 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2023,37(1):47-57

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Serological survey for antibodies against selected infectious agents among fallow deer (Dama dama) in central Italy     

Cuteri V  Diverio S  Carnieletto P  Turilli C  Valente C 《Zentralblatt für Veterin?rmedizin. Reihe B. Journal of veterinary medicine. Series B》1999,46(8):545-549

Sera were collected from 224 fallow deer (Dama dama) in reserves in central Italy. Samples were tested for antibodies against Chlamydia spp., Brucella spp. and Coxiella spp. with the complement fixation (CF) test. Indirect immunofluorescence was used to test for antibodies against Borrelia spp. and agglutination tests were conducted for Leptospira interrogans antibodies. Enzyme-linked immunosorbent assay (ELISA) tests were used to detect antibodies against bovine herpesvirus-1 (BHV-1) and bovine viral diarrhoea virus (BVDV). All samples were negative for antibodies against Brucella spp., L. interrogans, Coxiella spp. and BHV-1. Four samples (1.8%) had antibodies against Chlamydia spp., nine (4%) against Borrelia spp. and 10 (4.5%) against BVDV. These results indicate that fallow deer in central Italy have a low rate of exposure to pathogens typical of domestic livestock.  相似文献   

A serological survey of Rhodococcus equi infection in foals in central Italy: comparison of two antigens using an ELISA test     

Cuteri V  Takai S  Moscati L  Battistacci L  Pieramati C  Valente C 《Comparative immunology, microbiology and infectious diseases》2003,26(1):17-23

A serological survey of Rhodococcus equi infection was carried out on 602 blood samples collected from foals in central Italy. The assay was performed with an ELISA test using two different antigens prepared with reference strains of R. equi, ATCC 33071 and ATCC 6939. A positive reaction was obtained on 81 serum samples (13.45%) (OD > or = 0.3) using antigen ATCC 33071, and on 73 serum samples (12.12%) using antigen ATCC 6939. Although the frequency of the disease was not high, the serological positivity was about 13%. There was no statistically significant difference between males and females. The ELISA test using either Antigen 33071 or Antigen 6939 is a rapid and reliable tool for detecting antibodies against R. equi in foals.  相似文献   

Evaluation of the Abbott LCx Mycobacterium Tuberculosis Assay for Direct Detection of Mycobacterium Bovis in Bovine Tissue Samples     

Valente C  Cuteri V  Ausili E  Piersimoni C 《Veterinary research communications》2002,26(1):21-27

The commercial LCx amplification assay, usually employed to detect the Myocobacterium tuberculosis complex in respiratory specimens, was evaluated by comparing the results it gave with those obtained using Löwenstein-Jensen solid medium and pathological findings on 55 lymph nodes from cattle with positive and 10 lymph nodes from cattle with negative skin tests for tuberculosis. Fifty-three cultures (51 and 2, respectively) were positive for M. bovis, while the results for the LCx assay and the histological method were positive in 48 (45, 3) and 24 (20, 4) samples, respectively. None of the samples from cattle from certified tuberculosis-free herds were positive by any of the procedures. The results obtained with the LCx assay, compared with the culture procedure, regarded as the gold standard among the diagnostic techniques, gave a specificity of 91.6% and sensitivity of 90.5%. Although the sensitivity of LCx was suboptimal, DNA of M. bovis was detected in 81.8% of the skin test-positive animals. Amplification techniques could provide a rapid and reasonably reliable tool for detecting bovine tuberculosis.  相似文献   

Radiographic features of the limbs of juvenile and subadult loggerhead sea turtles (Caretta caretta)          下载免费PDF全文

Ana Luisa Valente  Ignasi Marco  Maria Angeles Zamora  Maria Luz Parga  Santiago Lavín  Ferran Alegre    Rafaela Cuenca 《Canadian journal of veterinary research》2007,71(4):305-313

This study aimed to provide the normal radiographic anatomic appearance of the limbs of the loggerhead sea turtle, Caretta caretta. Dorsopalmar and dorsoplantar radiographs were taken of the forelimbs and hindlimbs of 15 juvenile and 15 subadult loggerhead sea turtles, 17 alive and 13 dead. For comparison, computed tomographic, gross anatomic, osteologic, and histologic studies were performed on the limbs of 5 of the sea turtles. Bones from the distal part of the fore and hind flippers were seen in detail with a mammographic film-screen combination. The pectoral and pelvic girdles, superimposed by the carapace, were better seen on standard radiographs with the use of rare-earth intensifying screens. Mammographic radiographs of the manus of 5 small juvenile turtles showed active growth zones. Visualization of bone contours in the distal part of the limbs was clearer than in mammals owing to the very few superimpositions. The presence of a substantial amount of cartilage in the epiphyses produced better visibility of limb ends. We conclude that use of a mammography film-screen combination is the best way to evaluate the bony and joint structures of the limbs of sea turtles. Radiography provides reliable images for clinical purposes. Considering the low cost and logistics of this technique, it is a practical ancillary test for marine animal rehabilitation centers to use.  相似文献   

Mini‐cutting technique application in Corymbia and Eucalyptus: effects of mini‐tunnel use across seasons of the year     

de Lima  Marllos Santos  Araujo  Maristela Machado  Berghetti  Álvaro Luís Pasquetti  Aimi  Suelen Carpenedo  Costella  Claudia  Griebeler  Adriana Maria  Somavilla  Luiza Michelon  dos Santos  Osmarino Pires  dos Reis Teixeira Valente  Brígida Maria 《New Forests》2022,53(1):161-179

New Forests - The forestry sector has been able to sustainably satisfy the increasing global demand for forest products, thereby positively impacting the economy, while mitigating climate change....  相似文献   

The first records of the invasive pest Drosophila suzukii in the South American continent   总被引：1，自引：0，他引：1  

Maríndia Deprá  Jean Lucas Poppe  Hermes José Schmitz  Daniela Cristina De Toni  Vera L. S. Valente 《Journal of pest science》2014,87(3):379-383

This paper presents the first report of the occurrence of Drosophila suzukii (Diptera: Drosophilidae) in South America. Several samples were collected during various seasons in 2012 and 2013, and a significant number of individuals were obtained and identified. Based on the data recorded during each sampling campaign, including the locality, temperature, time of year, and number of individuals collected, several conclusions were drawn about the development of this invasion in southern Brazil.  相似文献   

Growth, digestibility and nutrient utilization of rainbow trout (Oncorhynchus mykiss) and European sea bass (Dicentrarchus labrax) juveniles fed different dietary soybean oil levels     

D. Alves Martins  E. Gomes  P. Rema  J. Dias  R.O.A. Ozório  L.M.P. Valente 《Aquaculture International》2006,14(3):285-295

A shortage of marine raw ingredients, such as fish oil, is predicted in the near future. The use of suitable alternative lipid sources, such as vegetable oils, is crucial for sustainable growth of the aquaculture sector. Three isonitrogenous (50% Crude Protein) and isoenergetic (19 kJ g⁻¹) diets, in which fish oil was gradually replaced by soybean oil (0, 25 and 50% of the oil fraction) were tested for 12 weeks, using European sea bass (Dicentrarchus labrax) and rainbow trout (Oncorhynchus mykiss) juveniles. No dietary effects (p>0.05) on growth performance, feed conversion, digestibility or body composition were observed with either species. The results obtained suggest the inclusion of soybean oil up to 50% of the dietary lipid is possible, in diets for sea bass and/or rainbow trout juveniles.  相似文献   

Definition of priority areas for forest conservation through the ordered weighted averaging method   总被引：2，自引：0，他引：2  

Roberta de Oliveira Averna Valente  Carlos Alberto Vettorazzi   《Forest Ecology and Management》2008,256(6):1408-1417

The general objective of this study was to evaluate the ordered weighted averaging (OWA) method, integrated to a geographic information systems (GIS), in the definition of priority areas for forest conservation in a Brazilian river basin, aiming at to increase the regional biodiversity. We demonstrated how one could obtain a range of alternatives by applying OWA, including the one obtained by the weighted linear combination method and, also the use of the analytic hierarchy process (AHP) to structure the decision problem and to assign the importance to each criterion. The criteria considered important to this study were: proximity to forest patches; proximity among forest patches with larger core area; proximity to surface water; distance from roads; distance from urban areas; and vulnerability to erosion. OWA requires two sets of criteria weights: the weights of relative criterion importance and the order weights. Thus, Participatory Technique was used to define the criteria set and the criterion importance (based in AHP). In order to obtain the second set of weights we considered the influence of each criterion, as well as the importance of each one, on this decision-making process. The sensitivity analysis indicated coherence among the criterion importance weights, the order weights, and the solution. According to this analysis, only the proximity to surface water criterion is not important to identify priority areas for forest conservation. Finally, we can highlight that the OWA method is flexible, easy to be implemented and, mainly, it facilitates a better understanding of the alternative land-use suitability patterns.  相似文献   

Novel application of square-wave adsorptive-stripping voltammetry for the determination of xanthohumol in spent hops     

Moreira MM  Carvalho AM  Valente IM  Goncalves LM  Rodrigues JA  Barros AA  Guido LF 《Journal of agricultural and food chemistry》2011,59(14):7654-7658

This paper reports the development of a novel electrochemical assay for xanthohumol (XN) by square-wave adsorptive-stripping voltammetry (SWAdSV) with a hanging mercury drop electrode. The method showed good repeatability (CV < 2%) and linearity (between 10 and 250 μg L(-1)), as well as suitable limits of detection (2.6 μg L(-1)) and quantification (8.8 μg L(-1)). The method was applied for the quantification of this compound in spent hops, and the results obtained were compared with the HPLC-UV method. XN contents determined by the SWAdSV method were 16 ± 1 and 100 ± 4 μg L(-1) for aqueous and methanolic extracts, respectively. The developed new methodology considerably reduces the analysis time, approximately from 25 min (HPLC-UV method) to 7 min, enabling a high sample throughput. In addition, the detection and quantification limits were approximately 5-fold lower than those obtained with the chromatographic method.  相似文献