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1 - 25 of 1984
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Aim: Cows on smallholder dairy farms (SDF) in developing countries such as Kenya typically produce volumes of milk that are well below their genetic potential. An epidemiological study was conducted to determine reasons for this low milk production, including limited use of best management practices...
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Background: Failure of transfer of passive immunity (FTPI) is the underlying predisposing risk factor for most early losses in dairy calves. Refractometers, either optical or digital, can be used to assess FTPI as a part of calf health monitoring program on dairy operations. Objectives: To eval...
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Compared with blanket dry cow therapy (DCT), the selective antimicrobial treatment of cows based upon on-farm culture results has the potential to reduce the amount of antimicrobials used in dairy production. The objective of the current study was to determine the effect of a Petrifilm (3M Canada, L...
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Porcine reproductive and respiratory syndrome (PRRS), a viral disease of swine, has major economic impacts on the swine industry. The North American Animal Disease Spread Model (NAADSM) is a spatial, stochastic, farm level state-transition modeling framework originally developed to simulate highly c...
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Amphibian populations suffer massive mortalities from infection with Frog virus 3 (FV3, Ranavirus, Iridoviridae), a pathogen also involved in mortalities of fish and reptiles. Experimental oral infection with FV3 in captive-raised adult wood frogs, Rana sylvatica [Lithobates sylvaticus], was perform...
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Short Sequence Repeat (SSR) typing of Mycobacterium avium subspecies paratuberculosis (Map) isolates is one of the most commonly used method for genotyping this pathogen. Currently used techniques have challenges in analyzing mononucleotide repeats >15 bp, which include some of the Map SSRs. Fragmen...
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In Bhutan, Capture-Neuter-Vaccinate-Release (CNVR) programs have been implemented to manage the dog population and control rabies, but no detailed evaluation has been done to assess their coverage and impact. We compared estimates of the dog population using three analytical methods: Lincoln-Peterse...
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The focus of this research was to improve Mycobacterium avium subsp. paratuberculosis (MAP) control and management programs through increased understanding of the diagnostic detection ability of common pathogen and antibody assays over seasons and lactation stages, as well as through the novel use o...
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Background:

Cutaneous bacteria inhabiting the skin of boreal toads (Anaxyrus (Bufo) boreas boreas) and columbia spotted frogs (Rana luteiventris) from Grand Teton National Park were isolated and identified using their 16S SSU rRNA gene sequence. We also used a culture-independent method, Termina...

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In response to the global threats of emerging infectious diseases and bioterrorism events, public health surveillance developed analytical methods to cluster early health indicators from multiple data sources into “syndromes” for rapid and efficient disease detection. Syndromic surveillance has ...
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Modelling is a useful tool that has been applied in both human and animal epidemiological research. A model is a simplified system that represents a much more complex phenomenon. Various types of models are available. They are generally used for the purposes of explaining phenomena, making predictio...
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In the early 1990s, the introduction of suspended culture methods and the development of a market for cocktail oysters (65–75 mm) propelled the oyster aquaculture industry in New Brunswick forward, now producing over 140,000,000 oysters (337,000 floating bags) on 2,649 hectares of private shellfis...
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Parasite transmission between captive and wild fish is mediated by spatial, abiotic, biotic, and management factors. More effective population management and conservation strategies can result from multivariable assessments of factors associated with spatial dynamics of parasite spillover.

Obj...

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Objective:

To investigate the sensitivity and specificity of results of initial and repeated milk ELISAs (at 6- or 12-month intervals) to detect cows that were shedding Mycobacterium avium subsp paratuberculosis (ie, were infectious) and to evaluate factors influencing the probability that the r...

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Concern has been expressed over the welfare of horses transported from the USA for slaughter in Canada. United States Department of Agriculture owner/shipper certificates for the year 2009 were analyzed to provide quantitative information on the patterns and durations of these journeys. In 2009, hor...
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The objectives of this study were to use non-equilibrium gravitational field-flow fractionation (GrFFF), an immunotag-less method of sorting mesenchymal stem cells (MSCs), to sort equine muscle tissue-derived mesenchymal stem cells (MMSCs) and bone marrow-derived mesenchymal stem cells (BMSC) into s...
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Fisher's linear discriminant analysis and linear discriminant analysis (LDA) are powerful methods in multivariate data analysis. Recently, a method called “uncorrelated linear discriminant analysis (ULDA)” has attracted attention in the chemometrics community. It has been stated that the major d...
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