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One hundred and thirtyone faecal samples from cattle clinically suspected of having paratuberculosis were processed using the sedimentation culture method (SM) and the centrifugation culture method (CM) before inoculation into Herrold's egg yolk medium containing mycobactin J (M1), control medi...
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A retrospective cross-sectional survey of dog-owning veterinary clients was undertaken in 1996 in three Canadian provinces (New Brunswick, Nova Scotia, and Prince Edward Island) to generate a population of dogs for future use in a more detailed survey on canine behaviour. The questionnaire was desig...
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The purpose of this study was to document the effect of calfhood vaccination for Mycobacterium paratuberculosis on a serologic ELISA. Fifteen calves vaccinated with a killed paratuberculosis vaccine and 5 unvaccinated control calves were tested from the first through the fifteenth month of life. Age...
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The Canadian lobster industry holds lobsters Homarus americanus in captivity for various periods to supply markets with live product year-round. Mortality during holding results in considerable losses, estimated at 10 to 15 % yr(-1) by the industry. This study examined the prevalence of Anophryoides...
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The characteristics of 227 biting dogs, their homes, and their victims were gathered in a detailed telephone survey of general veterinary clientele in the Canadian provinces of New Brunswick, Nova Scotia, and Prince Edward Island. All of the dogs had bitten either someone living in the same househol...
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A diet containing 11.5% (dry matter basis) of a moderately high Cd sewage sludge was fed to six Hereford steers for 106 days to simulate a high sludge intake from sludge-amended soils. At a mean live weight of 460 kg, the steers were slaughtered and liver, kidney, bone, muscle, lung, brain and splee...
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Microorganisms of the genus Mycobacterium cause tuberculosis in many animal species including humans. Generally, Mycobacterium bovis (M. bovis) infects cattle and cervids, but it has the potential to infect virtually all species of mammals. This study examined and analysed the data from the nine out...
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This report describes the first 4 years of an experimental rotation in ecosystem health offered to senior veterinary students in Canada. Faculty from the 4 Canadian veterinary colleges collaborated in offering the rotation once annually at one of the colleges. The first rotation was held in Guelph, ...
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The objective of this study was to identify risk factors for productivity losses in the Canadian lobster industry. Lobster handling and fishing practices onboard 64 fishing boats and transportation conditions on 49 vehicles subsequently transporting these lobsters from fishing wharves to processing ...
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OBJECTIVE: To describe the cross-sectional relationship between an objective measure of walking (pedometer-determined steps/day) and general indicators of health, a prior diagnosis of one or more components of the metabolic syndrome, and self-reported occupational activity in a generally sedentary w...
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A dot ELISA was developed for detection of antibodies to Mycobacterium paratuberculosis. The assay was evaluated by testing sera from cattle that were determined, by bacteriologic culturing of feces, to be infected with M paratuberculosis and were suspected of having clinical disease. Further evalua...
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To develop an animal model for sickle cell anemia, we have created transgenic mice that express a severe naturally occurring human sickling hemoglobin, Hb S Antilles. Due to its low solubility and oxygen affinity, Hb S Antilles has a greater propensity to cause red cell sickling than Hb S. To make t...
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The purpose of this study was to compare the serologic responses of cows infected and non-infected with Mycobacterium paratuberculosis in infected and non-infected herds using different cut-offs between positive and negative samples. Infection status of cattle was determined by fecal culture. The se...