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A collection of academic publications by faculty and staff, both before and during their time at UPEI.

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8226 - 8250 of 8331
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Sea lice (Lepeophtheirus salmonis) are the most economically important ectoparasites affecting Atlantic salmon (Salmo salar) culture worldwide. In recent years the efficacy of historically successful treatments has been on the decline. As such, a new management strategy for controlling lice infectio...
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The main goal of this study was to examine different phyllotactic patterns and pattern transitions in seedlings of eastern white cedar (Thuja occidentalis L.). Four phyllotactic patterns were observed on the main stem of T. occidentalis: tetracussate, tricussate, (3, 5) spiral, and decussate. Only o...
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Sympatric bighorn sheep (Ovis canadensis, n = 31), mule deer (Odocoileus hemionus, n = 38), and domestic cattle (n = 26) in the San Bernardino Mountains of southern California (USA) were sampled for the presence of Psoroptes spp. mites and for serological evidence of exposure to bluetongue virus (BT...
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A bighorn sheep (Ovis canadensis) population in New Mexico, USA, was sampled 4 times between 1989 and 1995, and 5 bluetongue virus (BTV) diagnostic tests (virus isolation (VI), PCR, serum neutralization (SN), agar-gel immunodiffusion (AGID), and competitive-ELISA (c-ELISA)) evaluated. The c-ELISA, A...
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Delays between time of sampling and time of testing are common, therefore, the length of time that blood can be stored at various temperatures was evaluated for effects on cholinesterase activity. Six horses were treated with 16 g of trichlorfon per os, 6 horses were treated with 15 g of dichlorvos ...
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From a group of 46 young racing Standardbreds presented for problems of decreased athletic performance, 8 with complete physiological data were found to have blood in the trachea (POS) within 1 h after a maximum exercise test on a high speed treadmill. This group was compared to those horses which h...
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30 mature Merino ewes in store condition (body condition score 2) were fattened on a maize grain/lucerne chaff diet or maintained in store condition (mean body weight difference, 11 kg). All sheep were then fed a maintenance diet of oat chaff. Following synchronization of all sheep with intravaginal...
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Records were reviewed of horses that had fatal injuries at California race tracks over a 16-month period. Horses were classified for injury type, sex, age and breed. Arsenic, cadmium, copper, iron, lead, molybdenum and zinc concentrations were measured in the liver and kidneys from each horse. Arsen...
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Pregnant Thoroughbred mares (n=21) were grazed on tall fescue pasture containing Cu 4.4-8.6 mg/kg DM. Twelve mares were supplemented daily with Cu 0.5 mg/kg liveweight (LW) as copper sulphate for the final 13-25 weeks of gestation. Plasma Cu declined during the third trimester for all mares and was ...
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Nearly two-thirds of Queensland, Australia, sheep graziers who detect lice (Bovicola ovis) in their flocks do so by fleece parting or visual inspection of the skin for lice. However, visual inspection is known to have low sensitivity which varies with the number of lice per infested sheep. This repo...
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The sensitivities and specificities of 17 antibody detection tests for brucellosis in goats were estimated. Tests evaluated included the USDA card test with 8% cell concentration (8%Card), USDA rapid automated presumptive test (RAP), Mexican Rose Bengal plate tests with 8 and 3% cell concentrations ...
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A portable modified steel mesh panel trap was developed to reduce injuries that wild pigs (Sus scrofa) suffer when captured in simple square panel traps. Immobilization was done with a drug combination of Telazol® (zolazepam and tiletamine) and xylazine hydrochloride (HCl) injected with blow darts....
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A cohort of 95 piglets born to 12 sows seropositive for Mycoplasma hyopneumoniae (MH) was followed from birth until passively acquired MH antibodies, detected with an ELISA, reached their lowest concentration. The objectives of the study were to determine the half-life of maternally derived MH antib...
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Shoe characteristics of Thoroughbred racehorses that died or were killed at California race-tracks between August 1992 and July 1994 were measured. Percentage of agreement was used to compare shoe characteristics between limbs. Using χ² analysis, shoe characteristics were compared between horses g...
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Thirteen morphologic characters were evaluated on P. cuniculi to determine if measurements for these variables were influenced by the use of different fixatives and varying periods of fixation. Morphological structures composed primarily of chitin (outer opisthosomal setal lengths and right 3rd tars...
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A case-control study was conducted in the Mexicali Valley to identify risk factors for goat-herd seropositivity for Brucella melitensis. Nineteen case herds (≥2 positive results with the 8% rose bengal plate test (RBT)) and 55 control herds (zero positive results in RBT), matched for herd size and...
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Dehydroepiandrosterone (DHEA) has been shown to have antiobesity activity in rodents and spontaneously obese dogs. This study evaluated the effect of DHEA or placebo combined with a low-fat/high-fiber diet in spontaneously obese dogs in a clinical trial. Spontaneously obese, euthyroid dogs, referred...
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Furunculosis occurs in all of the Atlantic Canadian provinces of Newfoundland, Nova Scotia and New Brunswick but not Prince Edward Island. Aeromonas salmonicida has been isolated from both wild and cultured salmonids and non-salmonids. Only "atypical A. salmonicida" (A. salmonicida subsp. ...
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The objective of this ultrastructural investigation was to determine if populations of pericytes in equine dermal and skeletal capillaries increase in a head-to-foot direction, as has been reported in human skeletal muscles. Samples of equine microvessels were obtained from the longissimus dorsi ske...
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In confined pig herds, located in Northwest-Germany and affiliated to a hybrid breeding organisation, 3 retrospective observational studies were performed looking at data collected before and after 1988 to study the effects of seasons on sow fertility. A subsequent field trial with 8 pig herds in 19...
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An agar gel immunodiffusion (AGID) test to detect group-specific antibodies to infection of cattle by bluetongue viruses was evaluated using field collected sera in Queensland, Australia. The AGID test was compared to the serum neutralization (SN) test used to detect serotype-specific bluetongue vir...