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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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8251 - 8275 of 8334
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Ecological monitoring and its associated research programs have often provided answers to various environmental management issues. In the face of changing environmental conditions, ecological monitoring provides decision-makers with reliable information as they grapple with maintaining a sustainable...
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The causes of morbidity and mortality in 17 free-living raptorial bird species of northern California between 1983 and 1994 were studied. Of 409 birds examined at the Veterinary Medical Teaching Hospital, University of California, USA, 58% died of traumatic injuries and 30% died of infectious diseas...
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Sera from 111 Ovis canadensis and 95 Odocoileus hemionus from california, USA, were tested using an indirect immunofluorescence assay for antibodies to 2 isolates of Babesia spp. recently obtained from these hosts in California. The study populations were from 6 locations: 3 areas of real or potenti...
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Selenium concentration was measured in paired maternal blood samples and fetal liver specimens collected at a San Joaquin County, California, abattoir (beef = 19, dairy = 54) and from bovine aborted fetuses submitted to the California Veterinary Diagnostic Laboratory System (CVDLS; beef = 20, dairy ...
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A description of earlier work that demonstrated that cattle inoculated with a polynucleotide vaccine encoding bovine herpesvirus type 1 (BHV-1) gD are protected from challenge with virulent BHV-1. More recently, a mouse model has been used to identify the main parts of immunomodulation by polynucleo...
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Factors associated with umbilical hernias were evaluated in a 320-sow, farrow-to-finish herd. Health, production, and treatment records for a cohort of 2958 pigs were used to determine whether umbilical infection and sire of the pig increased the risk of herniation. Although herniation was infrequen...
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Serum neutralization testing was used to determine transmissible gastroenteritis (TGE) titres of up to 10 sows per herd for 392 herds that participated in the 3 month monitoring of sows and litters in the National Swine Survey. Of the sampled herds, 101 (25.8%) had sow seroprevalences of at least 80...
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A total of 96 isolates of P. multocida from swine herds with progressive atrophic rhinitis were characterized by restriction endonuclease analysis (REA) of whole-cell DNA, ribotyping and plasmid analysis. For REA bacterial DNA was digested with SmaI and electrophoresed in 0.7% agarose, and fragments...
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95 Thoroughbred racehorses that died between 1994 and 1996 examined through the California Horse Racing Board Postmortem Program were used in this investigation. 38 quantitative measures of hoof size, shape and balance were obtained from orthogonal digital images of the hoof and were compared betwee...
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201 Thoroughbred racehorses that died or were killed at California race-tracks between August 1992 and July 1994 were examined PM. Shoe characteristics were compared between case horses affected by fatal musculoskeletal injury (FMI, 155 horses), suspensory apparatus failure (SAF, 79), and cannon bon...
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Kidney tissues were sampled on 3 dates (March 1995, July 1995 and August 1996) from 162 juvenile rainbow trout obtained from a California State fish hatchery where N. salmonis (formerly Enterocytozoon salmonis) was endemic. Kidney tissues were used to prepare imprints stained with May-Grünwald Giem...
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Records of 19 482 cows from 9 herds in the San Joaquin Valley of California, USA, were used to estimate culling rate in dairy herds. The cull rate derived from data on non-culled cows was estimated as the weighted slope of the cumulative proportion of cows remaining in a herd after first parturition...
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Western blots and a kinetic ELISA were used to characterize and quantify the prevalence of antibodies to Psoroptes sp. mites in elk (C. elaphus) from 9 herds in North America. Sera from infested (n = 18) and non-infested (n = 22) elk were used to optimize test methodology and to define cut-off value...
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S. enteritidis, phage type 4 (SE PT4), was isolated from 5 of 6 layer chickens (27 weeks old) submitted for PM examination from a flock of 43 000. Bacteriological and epidemiological investigations on the ranch showed that 5 of the 8 flocks (176 000 birds) were infected. The prevalence of SE PT4 in ...
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Although intramuscular (i.m.) injection of DNA encoding glycoprotein D (gD) of bovine herpesvirus-1 (BHV-1) induces immune responses in cattle, this route of delivery is inefficient. Here we assessed three parameters that may enhance the efficacy of a gD DNA vaccine in cattle. First, the immune resp...
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A combination of 3.3 mg/kg Telazol (1:1 mixture of tiletamine hydrochloride and zolazepam hydrochloride) and 1.6 mg/kg xylazine hydrochloride was used to immobilize 144 wild pigs (Sus scrofa) with blow darts. For 123 single injection immobilizations, mean induction times and effective handling perio...
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Review of PM records from Thoroughbred racehorses that sustained a fatal, exercise-related injury at a California race track during a 9-month period in 1991 revealed that 79 horses had a fatal musculoskeletal injury (FMI) while racing, with an incidence risk of 1.7/1000 race entrants. While training...
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The preferable testing and vaccination strategy for control of porcine parvovirus (PPV) during a 6-month period was investigated using decision-tree analysis and computer simulations of a 300-sow farrow-to-finish herd. The initial decision alternative was serological testing of 30 females to estimat...
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To determine risk factors associated with the introduction of porcine respiratory coronavirus (PRCV) to Denmark, a cross-sectional study of 408 swine herds was carried out between May 1985 and June 1986. The association between herd-PRCV serological status and possible risk factors, obtained from a ...
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Factors associated with foot abscess were evaluated in a cohort of 3322 suckling pigs reared on a woven-wire floor (wire diameter, 0.5 cm; size of openings, 1 × 3.8 cm). In bivariate analysis, foot abscess was significantly associated with postpartum sow illness, number of pigs born alive, and pari...
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24 Friesian heifers were fed winter diets consisting either of hay with or without selenium supplementation, or pasture and silage with or without selenium supplementation. Heifers fed hay diet (α-tocopherol concentration 19 mg/kg of dry matter) resulted in a pre-calving serum α-tocopherol concent...