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Point-of-service diagnostic technology for detection of swine viral diseases
2020
Nannucci, Lapo | Barattini, Paolo | Bossis, Ioannis | Woźniakowski, Grzegorz | Balka, Gyula | Pugliese, Carolina
A research project is underway aiming to develop a field diagnostic tool for six important viruses of the pig sector, namely: African swine fever virus (ASFV), porcine reproductive and respiratory syndrome virus (PRRSV), swine influenza virus (SIV), porcine parvovirus (PPV), porcine circovirus (PCV2), and classical swine fever virus (CSFV). To obtain a preliminary sounding of the interest in this type of instrument among its potential operators, a questionnaire was drawn up and submitted to three categories of stakeholders: farmers, veterinarians, and others (including scientific and technical staff working on animal farms). Four countries participated: Italy, Greece, Hungary, and Poland. In total, 83 replies were collected and analysed in a breakdown by stakeholder type and pertinence, where the areas were the importance of the main diseases within the different countries, diagnostic tool operational issues, and economic issues. The main end-users of this kind of instrument are expected to be private veterinarians and pig producers. The infectious agents seeming to be most interesting to diagnose with the instrument are PRRSV, SIV, PPV, and PCV2. The most decisive parameters which have been selected by the stakeholders are sensitivity, cost, simplicity, and time required to obtain results. The economic issue analysis showed that the majority of those who would prefer to buy rather than rent the device are willing to pay up to €3,000 for a diagnostic field tool.
Show more [+] Less [-]Calculation of body surface area via computed tomography–guided modeling in domestic rabbits (Oryctolagus cuniculus)
2012
Zehnder, Ashley M. | Hawkins, Michelle G. | Trestrail, Earl A. | Holt, Randall W. | Kent, Michael S.
Objective: To optimize the use of CT-guided modeling for the calculation of body surface area (BSA) in domestic rabbits (Oryctolagus cuniculus). Animals: 12 domestic rabbits. Procedures: Adult rabbits (body weight, 1 to > 4 kg) that were client-owned animals undergoing CT for disease diagnosis or deceased laboratory animals donated from other research projects were scanned with a CT scanner. Images were transferred to a radiation therapy planning software program. Image slices were captured as contiguous slices at 100 kVp and 100 mA and processed to 0.1-cm-thick sections. The length of each contoured slice was summed to calculate a final BSA measurement. Nonlinear regression analysis was then used to derive an equation for the calculation of BSA in rabbits. Results: The constant calculated by use of this method was 9.9 (range, 9.59 to 10). The R2 for the goodness of fit was 0.9332. The equation that best described BSA as a function of body weight for domestic rabbits with this method was as follows: BSA = (9.9 × [body weight {in grams}]2/3)/10,000. Conclusions and Clinical Relevance: The BSA calculated via the CT-guided method yielded results similar to those obtained with equations for other similarly sized mammals and verified the use of such equations for rabbits. Additionally, this technique can be used for species that lack equations for the accurate calculation of BSA.
Show more [+] Less [-]An overview of research and industry connectivity for EBN
2018
Anun | Aini Ideris | Rosini | Ramlan M. | Jalila Abu
As of 2016, a total of 38 research projects have been undertaken, with the involvement of 38 principal researchers and 266 co-researchers from various Malaysian universities, research institutes and government agencies, in collaboration with industry partners, to help solve some of the issues faced by EBN industry. In the early stage, research areas were focused onfundamental works which are important to provide the scientific basis for some of the claims made by producers, assisting in issues raised by ranchers and industry, and to gather new knowledge in swiftlet and EBN. The researchers worked mainly based on the problems faced by the industry. Besides publications in journals, proceedings and books, more than 30 Masters, PhDs and technical experts have been trained under these projects. In addition, several patents have been filed, social innovations and ideas have been shared with the community and industry. A few products are ready to go to the next level for commercialisation. Industry partners are involved in many of these stepsand outputs. Some of the issues faced by the industry have been partially solved and are in the process of refinement. The engagement with the industry will be further strengthened by getting more industry partners to be involved in the relevantprojects specific to problems faced by the industry, for the benefits of EBN industry and nation’s wealth creation.
Show more [+] Less [-]The brucellosis and tuberculosis status of wood bison in the Mackenzie Bison Sanctuary, Northwest Territories, Canada
1993
Tessaro, S. V. | Gates, C. C. | Forbes, L. B.
Postmortem examinations were done on 51 wood bison (Bison bison athabascae) killed as part of a multidisciplinary research project in the Mackenzie Bison Sanctuary, Northwest Territories, Canada, between 1986 and 1988. There was no gross, histological or bacteriological evidence of brucellosis or tuberculosis in these bison. Traumatic lesions were seen in one calf that had been attacked by wolves and a second calf that had been gored. Antibody titers to Brucella abortus were not found in sera from these 51 animals or an additional 112 wood bison that were chemically-immobilized or killed in the Sanctuary between 1986 and 1990. The combined prevalence of the diseases in the population could not have exceeded 5.95% for the necropsy survey to have missed finding at least one infected animal, and the prevalence of brucellosis in the population would have had to be less than 1.95% for the broader serological survey to have failed to find at least one reactor animal on the battery of tests. These results, and the cumulative epidemiological information on brucellosis and tuberculosis in bison, indicate that bovine brucellosis and tuberculosis are not enzootic in the wood bison population in and around the Mackenzie Bison Sanctuary, and suggest that the population is free of these diseases. However, this expanding population is at risk of contracting both diseases from the infected bison population in and around nearby Wood Buffalo National Park.
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