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76 - 100 of 1901
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Selected alternative treatments for preventing or controlling gastrointestinal nematodes (GIN) in sheep under field conditions were evaluated using a systematic review-meta-analysis methodology. Forty-three publications reporting 51 studies (21 controlled studies (CS) and 30 challenge studies (ChS))...
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The causes, incidence and control of arthritis in swine are discussed. Abattoir condemnation of carcasses for arthritis caused major economic losses for producers in New South Wales. Of 1 117 818 pigs slaughtered in 1979-1980, 1979 (0.18%) were condemned for arthritis.
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Study of how user-centred design can be applied in the development of a web-based Library.
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A serosurvey of antibodies to canine parvovirus (CPV), canine distemper virus (CDV), and Ehrlichia canis in African (Lycanon pictus) and sympatric domestic canids was conducted in the Maasai Mara, Kenya, in 1989 and 1990. Samples were collected from about 20% of the sympatric and wild dog population...
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Collection of blood from amphibians, as in other classes of vertebrate animals, is essential to evaluate parameters of health, diagnose hemoparasitism, identify viral and bacterial pathogens, and measure antibodies. Various methods of blood collection have been described for amphibians. Most can be ...
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In everyday life there are low risk situations where resources normally need to be protected and thus access to them controlled, but at the same time the implications of occasional unauthorized access are not severe. In these situations using an authentication technique that is expensive or requires...
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The primiparous food-restricted sows were investigated as to whether individual differences and/or daily variations in levels of chain manipulation and excessive drinking are correlated to individual differences and/or daily variations in pre- or postfeeding glucose concentrations. Blood samples wer...
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A prospective cohort study was undertaken in a farrow-to-farrow pig herd to describe patterns of pneumonia, and to identify host risk factors associated with the extent of pneumonic lesions in 2 weight groups of slaughter swine. The risk of coughing and pneumonic lesions increased with increasing ag...
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We developed and validated an enzyme immunoassay for immunoreactive pregnanediol-3-glucuronide (iPdG) in feces to monitor reproductive status in desert and Rocky Mountain bighorn sheep (Ovis canadensis). Fecal iPdG concentrations were strongly correlated (r = 0.71) with serum progesterone concentrat...
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Conservation management of wild fish may include fish health management in sympatric populations of domesticated fish in aquaculture. We developed a mathematical model for the population dynamics of parasitic sea lice (Lepeophtheirus salmonis) on domesticated populations of Atlantic salmon (Salmo sa...
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Thesauri have been important information and knowledge organisation tools for more than three decades. The recent emergence and phenomenal growth of the World Wide Web has created new opportunities to introduce thesauri as information search and retrieval aids to end user communities. While the...
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The spreadsheet program based on Quattro-Pro version 2.0 was developed to assist researchers, teachers, and practitioners answer questions related to the development and application of diagnostic tests in epidemiological studies and clinical veterinary medicine. Many results are presented graphicall...
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The zoonotic protozoan parasites Cryptosporidium parvum, and Giardia duodenalis can colonize the gastrointestinal tracts of many farmed, domestic and wild animals, and are capable of causing disease in humans. Due to their high prevalence in dairy and beef cattle, farms are considered to be potentia...
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A longitudinal study was undertaken in a swine herd with a continuous problem of foot abscess in unweaned pigs reared on a woven-wire floor. Of 3322, 4-day-old pigs, 199 (6%) developed abscess lesions involving claws and accessory digits before weaning. Lesions were first detected in 4-day-old pigs;...
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There are currently four invasive tunicate species which are causing significant challenges to the aquaculture industry in Atlantic Canada: Ciona intestinalis, Styela clava, Botryllus schlosseri and Botrylloides violaceus. Molecular PCR based assays have been developed in previous studies as high th...
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Studies were conducted under experimental and field conditions to determine the effect of infection with M. hyopneumoniae on the immune response in serum as measured by ELISA. Following intratracheal challenge or contact exposure, serologically negative pigs derived from mycoplasma-free piggeries de...
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The invention provides a method and apparatus for remote sensing of livestock, using a thermographic image sensing system, in order to determine one or more of the number, weight, location, temperature, carcass pH, etc., of animals in a surveillance area. A thermographic image comprising pixels of t...
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Using computerized decision-tree analysis and simulation modelling to evaluate control and eradication strategies for pseudorabies virus (PRV) three alternative actions were considered for a hypothetical 100-sow, farrow-to-finish operation: (1) depopulation-repopulation, (2) test-and-removal of sero...
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With the increasing spread of invasive marine species and their detrimental effects on aquaculture operations globally, mitigation strategies need to be optimized to mitigate economic impacts. The efficacy of a potassium monopersulphonate triple salt based disinfectant used in the aquaculture indust...
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Antimicrobial use (AMU) data are critical for formulating policies for containing antimicrobial resistance. The present study determined AMU on Canadian dairy farms and characterized variation in AMU based on herd-level factors such as milk production, somatic cell count, herd size, geographic regio...