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26 - 50 of 1922
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User interfaces to information retrieval systems play a major role in assisting users to search, browse and retrieve information relevant to their needs. This paper provides a review of a category of information ...
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Bluetongue (BT) is an important viral disease of ruminants that is transmitted by hematophagous Culicoides midges. We examined the seasonal patterns of abundance and infection of Culicoides sonorensis at four dairy farms in the northern Central Valley of California to develop estimates of risk for b...
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Toxigenic strains of P. multocida were readily differentiated from non-toxigenic strains by an agarose overlay method using bovine turbinate cells or bovine lung cells. Cells which were young and densely confluent were best suited to this assay. The incubation period required to distinguish toxigeni...
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Half the sows and boars on each of 5 commercial farms that had histories of seasonal infertility were given 4 g vitamin C daily. The other half was unsupplemented. Of 423 sows which were allocated to the experiment during the summer-early autumn of 1978-79, 392 were available for mating during the c...
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This epidemiological study investigates the relationship between various factors associated with swine farms and the nitrate concentration of well water in the USA. Through a random sampling procedure, 605 swine farms located in 18 states were selected for inclusion in this study. A total of 631 wel...
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Several aquatic environments of the province of Córdoba (Argentina) are used for sport fishing and catching of bait fish. The aim of this paper is to describe the characteristics of 9 outbreaks of disease on wild fish in the central-south region of Córdoba (31° and 35°S, 62° and 65°W). Fish we...
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Intratesticular injection of EsterilSol (zinc gluconate neutralized with arginine) is a chemical sterilant for male dogs sometimes used in population control campaigns. Adverse reactions have been reported in 1% to 4% of treated dogs, but detailed histomorphologic descriptions are lacking. During a ...
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The practice of disease surveillance has shifted in the last two decades towards the introduction of systems capable of early detection of disease. Modern biosurveillance systems explore different sources of pre-diagnostic data, such as patient's chief complaint upon emergency visit or labo...
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A stratified random sample of 43 dairy herds in California was studied for 1 year as a component of the National Animal Health Monitoring System (NAHMS). Costs associated with clinical disease and disease prevention were determined and the resulting costs extrapolated to the entire California dairy ...
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On the Internet, there is an uneasy tension between the security and usability of authentication mechanisms. An easy three-part classification is: 'something you know' (e.g. password); 'something you hold' (e.g. device holding digital certificate), and 'who you are' ...
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Bluetongue is an economically important arboviral disease of ruminants that is transmitted by hematophagous Culicoides midges. In light of dramatic recent changes in the global distribution of bluetongue virus (BTV), the goals of this study were to re-evaluate the prevalence of BTV infection of catt...
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In this communication chalimus lice numbers in the second, third and fourth quarters of the production cycle are examined in relation to a range of prevailing risk factors using an approach based on that already taken for mobile stages (Revie et al. in press). A total of 54 two-year production c...
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The objectives of the current study were to estimate the sensitivity and specificity of three real-time polymerase chain reaction (PCR) tests for diagnosis of feline immunodeficiency virus (FIV) infection in domestic cats, both individually and when interpreted in series with one of two serological ...
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Kenyan community leaders called for strengthened sustainable livelihoods for farmers and in 1992 formed a self-help dairy group that was reorganized in 2009 to form the Wakulima Dairy Ltd. (WDL). At WDL, members sell surplus milk to the dairy and, through nongovernmental organization (NGO) partnersh...
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The objective of this study was to evaluate the effects of feeding pigmented feed (50 ppm astaxanthin) to diploid or triploid Arctic charr, Salvelinus alpinus, on growth rate, color of fillets, and the variability of color within fillets. Arctic charr with an average weight of 419.9 g ± 83.3 g, inc...
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Blood samples were collected from 145 goats >2years of age: 60 from the University farms and 74 and 12 goats from 2 farms which had a clinical history of caseous lymphadenitis. The synergistic haemolytic inhibition (SHI) test identified 36 goats that gave a positive reaction to caseous lymphadenitis...
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A computer simulation study was carried out using production and reproduction data from 1642 dairy herds for 1984 to determine an optimum combination of sampling plan and sample size for obtaining precise estimates of the population and disease parameters of the California dairy cattle production. T...
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Two newly-born Anglo Nubian kids with clinical evidence of a severe neurological condition were examined. Pathological examination revealed extensive cytoplasmic vacuolation in neural tissue and in localized areas in the kidney, pancreas and lymphoid tissue. Biochemical investigations demonstrated a...
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"This book started life as a veterinary text: Veterinary Epidemiologic Research. ... Methods in Epidemiologic Research is based heavily on the material covered in Veterinary Epidemiologic Research, with 2 major changes. Firstly, all of the veterinary examples have been replaced with human medic...
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The salmon louse Lepeophtheirus salmonis is the most important ectoparasite of farmed salmonids in the Northern hemisphere, having a major economic and ecological impact on the sustainability of this sector of the aquaculture industry. To a large extent, control of L. salmonis reli...
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