| seroprevalence of anti-toxoplasma igg in canadian swine. | in 1990, 1443 sera randomly selected by computer generated random numbers from a bank of greater than 15,000 sera collected earlier from sows at slaughter in various geographic regions of canada were tested for anti-toxoplasma immunoglobin g (igg) by the modified direct agglutination test. one hundred and thirty-six (9.4%) samples were positive for anti-toxoplasma igg while 36 (2.5%) of the sera gave borderline reactions. the highest prevalence of anti-toxoplasma igg was in swine originating in ... | 1991 | 1790495 |
| the rancher and veterinary services. | | 1974 | 4814029 |
| status of trichinella spiralis in domestic swine and wild boar in canada. | evidence of the status of trichinellosis in canada's national swine herd is provided from data acquired through national surveillance programs and from a prevalence study of trichinella in wild boar and domestic swine. more than 500,000 swine tested at abattoirs in ongoing animal health surveys since 1980 and 2 national swine serological surveys (1985 and 1990) showed no evidence of trichinella infection, except for 3 occurrences in a small infected zone in nova scotia. the prevalence study of d ... | 1997 | 9342448 |
| prevalence of hepatitis e virus antibodies in canadian swine herds and identification of a novel variant of swine hepatitis e virus. | swine hepatitis e virus is a newly identified potentially zoonotic virus from pigs of particular concern for possible direct transmission to a human xenotransplant recipient by organ transplantation. in the present study, prevalence of serum antibodies to hepatitis e virus was examined in canadian swine herds. a total of 998 serum samples collected from 6-month-old healthy slaughter hogs were examined by enzyme immunoassay and western blot analysis for antibodies to the recombinant open reading ... | 2001 | 11687465 |
| ascaris suum: seasonal egg development rates in a saskatchewan pig barn. | this study investigated the effects of seasonal temperature variations on the rate of development to infectivity of ascaris suum eggs under western canadian climatic conditions. flasks containing a suspension of a. suum eggs were placed inside a pig barn located near saskatoon, saskatchewan, canada, at monthly intervals from july 1997 to july 1998. eggs from each flask were monitored weekly for development to the infective larval stage. infectivity of eggs was confirmed using a mouse bioassay. d ... | 1999 | 10447194 |
| typhlocolitis caused by clostridium difficile in suckling piglets. | | 1998 | 9526873 |
| ascaris suum prevalence and intensity: an abattoir survey of market hogs in saskatchewan. | two surveys examining the prevalence and intensity of ascaris suum were conducted at a saskatchewan abattoir. in the first, 2500 livers from market weight animals were examined and scored for lesions consistent with ascarid migration. forty-four percent displayed some degree of scarring with approximately 8% being severely damaged. in the second, both livers and intestinal contents from 500 market weight animals were examined. seventeen percent were infected with intestinal a. suum (mean of 2.5 ... | 1997 | 9477517 |
| anthelmintic use on saskatchewan pig farms: results from a postal survey. | a postal survey to determine anthelmintic use in saskatchewan was sent to 580 pig producers in march, 1996. response rate was 33%. of all respondents, 76% treated at least some animals. sows were treated on 90% of farms, weanlings on 86%, boars on 75% and growers on 67%. injectable treatment with a macrolide was used by more than half the producers. in-feed treatment, with a variety of anthelmintics, was less common and in-water treatment was used least often. the majority of respondents (62%) u ... | 1997 | 9477516 |
| antimicrobial use through feed, water, and injection in 20 swine farms in alberta and saskatchewan. | antimicrobial resistance (amr) is an emerging animal welfare and public health issue linked to antimicrobial use (amu) in livestock. this study was conducted in 2004 on 20 swine farms in alberta and saskatchewan. on-farm records and questionnaires were used to retrospectively describe the antimicrobial exposures of pigs through feed, water, and injection. antimicrobial use in all production categories was described over 12 months. on-farm records and questionnaires provided sufficient data to de ... | 2008 | 18505203 |
| isolation of circovirus from lesions of pigs with postweaning multisystemic wasting syndrome. | postweaning multisystemic wasting syndrome (pmws), an apparently new disease, has been recognized in swine herds in western canada. young pigs with this disease have progressive weight loss, tachypnea, dyspnea, and jaundice, accompanied by interstitial pneumonia, lymphadenopathy, hepatitis, and nephritis. we examined more than 400 pigs from more than 70 herds in alberta, saskatchewan, and manitoba with cases of pmws. a small virus was isolated from a range of tissues from 8 of 8 affected pigs ex ... | 1998 | 9442952 |
| positive human health effects of dust suppression with canola oil in swine barns. | a crossover trial was conducted to evaluate the acute human health effects of a dust control technology in a swine confinement facility. twenty lifetime nonsmoking male subjects, with no evidence of allergy or asthma and no previous swine barn exposure, participated in the study, which included a laboratory session (baseline), 5-h exposure in a swine room sprinkled with canola oil (treatment) and 5-h exposure in a traditional swine room (control). mean values of inhalable dust concentrations and ... | 1997 | 9279217 |
| insect succession and decomposition patterns on shaded and sunlit carrion in saskatchewan in three different seasons. | a study was conducted on decomposition and insect succession in the prairie ecozone of saskatchewan in the year 2000. eighteen domestic pig carcasses (42-79 kg) were employed as human models for applications to future homicide investigations in this region. two major variables were considered including the effect of season and habitat (sun versus shade). research was conducted over 25 weeks, spanning three seasons: spring, summer and fall. ambient temperature, internal carcass temperature, fauni ... | 2008 | 18662603 |
| accelerated lung function decline in swine confinement workers. | we conducted a longitudinal study to determine the annual rate decline in pulmonary function measurements in male swine confinement workers. for comparison, a grain farming group and a nonfarming rural-dwelling control group were also chosen for the longitudinal study. two hundred seventeen swine confinement workers, 218 grain farmers, and 179 nonfarming control subjects had valid pulmonary function measurements at the baseline observation conducted in 1990 to 1991 and at the second observation ... | 1997 | 9187201 |
| respiratory health status in swine producers using respiratory protective devices. | a cross-sectional survey on respiratory health in swine producers showed that 30% of 301 examined men usually used a dust mask when working inside a barn. they did not differ significantly from dust mask nonusers in respect to respiratory symptoms and lung function. this analysis was undertaken to determine whether the respiratory health of dust mask users was associated with reasons why they had started individual respiratory protection. the subjects were recontacted in order to identify those ... | 1993 | 8506852 |
| respiratory health of swine producers. focus on young workers. | in this report, we compare the respiratory health of swine producers, grain farmers, and nonfarming control subjects, separately in all age groups and in young subjects. we examined 249 swine producers (age 37.7 years), 251 grain farmers (age 44.7 years), and 263 nonfarming subjects (age 40.7 years). swine producers had significantly more symptoms of chronic bronchitis (15.3 percent) than did grain farmers (7.2 percent) or nonfarming men (5.7 percent). after controlling for age, height, and smok ... | 1993 | 8449055 |
| pneumonia in saskatchewan swine: abattoir incidence of intrathoracic lesions in pigs from a herd infected with haemophilus pleuropneumoniae and from other herds. | a 1978-79 survey of the incidence of thoracic cavity lesions at slaughter had shown that the overall incidence of pleurisy in saskatchewan swine was low (2%). therefore, in the summer of 1979 a comparison was made between the incidence of pleurisy in a herd of pigs chronically affected with haemophilus pleuropneumoniae pneumonia and in animals from other herds slaughtered at the same time. the incidence of pleurisy in control pigs (3.6%) was slightly higher than in the large scale survey but in ... | 1981 | 7340926 |
| an abattoir survey of the incidence of pneumonia in saskatchewan swine and an investigation of the microbiology of affected lungs. | the lungs of 15 409 pigs, mostly from saskatchewan, slaughtered at an abattoir were examined over a one year period. the incidence of lesions was 36.7% for "enzootic" pneumonia and 2.1% for pleurisy unassociated with pneumonia. seasonal variations were recorded and compared with the results of similar surveys carried out in australia, belgium and england. mycoplasmological examination of lungs from 347 animals was consistently negative for mycoplasma hyopneumoniae. pasteurella multocida was the ... | 1981 | 7248880 |
| family outbreak of yersiniosis. | yersinia enterocolitica biotype 1, serotype o:21 was isolated from feces or rectal washings of three members of one family in northwestern saskatchewan. the three isolates gave positive pathogenicity tests in guinea pigs with cultures grown at 22 degrees c as inoculum. all three cases showed clinical symptoms consistent with yersiniosis. all three cases had symptoms of diarrhea and abdominal pain, and two cases had recorded fever. in two cases, appendicitis was initially suspect. one case with i ... | 1982 | 7153310 |
| ammonia emissions from livestock industries in canada: feasibility of abatement strategies. | an updated national ammonia (nh(3)) emissions inventory was employed to study the relationship between nh(3) emissions and livestock industries in canada. emissions from animal agriculture accounted for 322kilotonnes (kt) or 64% of canadian nh(3) emissions in 2002. cattle and swine accounted for the bulk of livestock emissions. the provinces of alberta, ontario, quebec, and saskatchewan accounted for 28.1%, 22.0%, 18.7%, and 13.1% of total livestock emissions, respectively. emissions from ontari ... | 2010 | 20542610 |
| toxic blue-green algae in saskatchewan. | | 1968 | 5693281 |
| further evidence of western encephalitis infection in saskatchewan mammals and birds and in reindeer in northern canada. | | 1970 | 5530913 |
| porcine hemophilus parahemolyticus pneumonia in saskatchewan. i. natural occurrence and findings. | an outbreak of fibrinous pleuropneumonia was observed in october 1971 in saskatchewan on a farm of 900 feeder pigs. morbidity and mortality were low. pathologic-anatomic findings included fibrinous pleuritis, pulmonary vascular thrombosis and necrotizing fibrinous pneumonia. hemophilus parahemolyticus was isolated from the lungs of affected animals. in addition pulmonary lesions were found which suggested an adenovirus infection. it was speculated that the viral infection possibly predisposed th ... | 1974 | 4274828 |
| porcine hemophilus parahemolyticus pneumonia in saskatchewan. ii. bacteriological and experimental studies. | the incidence of porcine pleuropneumonia caused by hemophilus parahemolyticus has shown a marked increase in recent years in some countries. isolation of a strain distinct from european serotypes was made from a natural outbreak of the disease in pigs in saskatchewan. experimentally infected pigs did not develop clinical signs but pathologic-anatomic studies of lungs revealed the presence of necrotizing fibrinous pneumonia with intense proliferation of mesenchymal tissue elements. similar extens ... | 1974 | 4274816 |
| respiratory symptoms and alterations in pulmonary function tests in swine producers in saskatchewan: results of a survey of farmers. | to determine whether farmers who produced swine in animal confinement chambers in saskatchewan were at increased risk of developing respiratory dysfunction, we carried out a respiratory health questionnaire and spirometric pulmonary function test measurements, including forced expired volume in 1 second (fev1), forced vital capacity (fvc), and the ratio of fev1 to fvc (fev1/fvc x 100), on 504 farmers who indicated that they raised swine, and 448 rural-dwelling nonfarming control subjects. swine ... | 1988 | 3183788 |
| the epidemic of foot-and-mouth disease in saskatchewan, canada, 1951-1952. | the epidemic of foot-and-mouth disease in saskatchewan in 1951 and 1952 was studied in order to determine origins of outbreaks and methods of spread. the epidemic was initially considered to be vesicular stomatitis and foot-and-mouth disease was not recognized until february 1952, three months after the initial infection. the reports prepared at that time were reviewed in order to obtain details of the numbers of animals infected and the source and date of infection for the outbreaks. methods of ... | 1990 | 2249179 |
| airborne spread of foot-and-mouth disease in saskatchewan, canada, 1951-1952. | farms affected with foot-and-mouth disease during the epidemic in saskatchewan, in 1951-1952, for which the origin of virus was not known or uncertain, were studied to determine if infection could have been introduced by the airborne route. a short-range gaussian plume dispersion model was used to estimate the concentration of virus downwind and the dose available for individual animals. the investigation suggested that a large virus source due to infected pigs in a feedlot in january 1952 could ... | 1990 | 2174297 |
| increased airways responsiveness in swine farmers. | a respiratory questionnaire, pulmonary function tests, and an examination of airways responsiveness were conducted on 20 swine farmers and 20 control subjects. the swine farmers represented almost the complete work force from 13 hutterite colonies and had worked in confinement buildings with more than 2,000 swine (3,270 +/- 1,221 swine) for at least four hours (6.6 +/- 1.8 hours) per day for more than two years (10.5 +/- 7.5 years). the control subjects were randomly selected from outdoor city w ... | 1991 | 2009799 |
| laboratory investigation of virulence among strains of yersinia enterocolitica and related species isolated from pigs and pork products. | eighty strains of yersinia enterocolitica and related species isolated from slaughtered pigs and pork products were tested for possession of virulence-associated phenotypes by employing 12 in vivo and in vitro assays. the isolates could be broadly divided into two groups: (i) strains belonging to pathogenic bioserotypes of y. enterocolitica that displayed virulence-associated characteristics in most or all assays and (ii) strains belonging to y. enterocolitica biotype 1a and to related species t ... | 1992 | 1521193 |
| a livestock disease survey from auction mart inspection in saskatchewan. | the data on health problems from visual livestock inspection at an auction mart in saskatchewan during a two year period were tabulated for swine, cattle and calves. the major conditions seen in swine were underweight animals, infectious diseases or congenital abnormalities. infectious diseases such as hypoderma spp. infestations, ringworm or eye infections were the primary troubles in older cattle. young calves demonstrated a predominance of congenital (herniation) and infectious (enteritis or ... | 1979 | 534993 |
| hydrogen sulfide assessment in shallow-pit swine housing and outside manure storage. | in saskatchewan, some recent incidents have lead us to believe that certain manure management activities can potentially release high concentrations of h2s into the atmosphere of shallow-pit barns. the objectives of the monitoring project reported here were to evaluate worker exposure to h2s during the completion of the following tasks: emptying of in-barn shallow manure pits, power washing of barn rooms, and agitation and emptying of outdoor manure storage facilities. in-barn monitoring was per ... | 2003 | 14679877 |
| prevalence of giardia and cryptosporidium and characterization of cryptosporidium spp. isolated from wildlife, human, and agricultural sources in the north saskatchewan river basin in alberta, canada. | the environmental distribution of giardia spp. and cryptosporidium spp. is dependent upon human, agricultural, and wildlife sources. the significance of each source with regard to the presence of parasites in the environment is unknown. this 2-year study examined parasite prevalence in human sewage influent, wildlife, and agricultural sources associated with the north saskatchewan river basin in alberta, canada. fecal samples were collected from cow-calf, dairy, and hog operations in the watersh ... | 2002 | 12166680 |
| two cases of multicentric lymphosarcoma in swine: gross and histopathologic findings. | | 2005 | 15825523 |
| predictors of longitudinal changes in pulmonary function among swine confinement workers. | to determine predictors of longitudinal changes in pulmonary function in swine confinement workers. | 1998 | 10070175 |
| excess respiratory symptoms in full-time male and female workers in large-scale swine operations. | the respiratory health effects of working in swine operations have been previously investigated mainly in male owner/operators with intermittent exposure to indoor air contaminants. | 2007 | 17426228 |
| anthrax in saskatchewan 2006: an outbreak overview. | | 2008 | 18390096 |
| antimicrobial resistance of fecal salmonella spp. isolated from all phases of pig production in 20 herds in alberta and saskatchewan. | salmonella spp. (n = 468), isolated from the feces of sows, nursery, and grow-finish pigs in 20 farrow-to-finish herds in alberta and saskatchewan, were tested for susceptibility to 16 antimicrobials. no resistance was identified to amikacin, amoxicillin-clavulanic acid, ceftiofur, ceftriaxone, ciprofloxacin or nalidixic acid, and less than 1% of the isolates were resistant to cefoxitin and gentamicin. isolates were most commonly resistant to tetracycline (35%) and sulfamethoxazole (27%). overal ... | 2008 | 18505204 |
| antimicrobial resistance of fecal escherichia coli isolated from grow-finish pigs in 20 herds in alberta and saskatchewan. | escherichia coli (n = 1439), isolated from the feces of apparently healthy grow-finish pigs in 20 herds in alberta and saskatchewan, were tested for susceptibility to 16 antimicrobials. all isolates were susceptible to amikacin, ceftriaxone, and ciprofloxacin and less than 1% was resistant to amoxicillin-clavulanic acid, cefoxitin, ceftiofur, gentamicin, and nalidixic acid. resistance was most common to tetracycline (66.8%), sulfamethoxazole (46.0%) and streptomycin (33.4%). twenty-one percent o ... | 2008 | 18505205 |
| survey on salmonella prevalence in slaughter pigs from saskatchewan. | a study on slaughter pigs from saskatchewan detected salmonella organisms in 12.5% and 5.2% of cecal content and ileocaecal lymph node samples, respectively. cecal content prevalence was associated with larger farms and longer lairage periods. antimicrobial resistance was detected in 41.5% of the isolates. salmonella enteritidis was the second most prevalent serotype. | 2008 | 18978974 |
| quantitative polymerase chain reaction for porcine circovirus-2 in swine feces in a porcine circovirus disease-affected commercial herd and a nonaffected commercial herd. | this study examined if pigs in a porcine circovirus disease (pcvd)-affected herd (n = 100) had shed more porcine circovirus-2 (pcv-2) in their feces than pigs in a pcvd-nonaffected herd (n = 101), and if differences in shedding among production stages within and between the herds existed. the pcv-2 shedding was quantified by real-time polymerase chain reaction. the highest median pcv-2 shedding was found in the nursery of the pcvd-affected herd and in the grower of the pcvd-nonaffected herd. the ... | 2008 | 19252710 |
| associations between antimicrobial exposure and resistance in fecal campylobacter spp. from grow-finish pigs on-farm in alberta and saskatchewan, canada. | campylobacter spp. (n = 405), isolated from the feces of apparently healthy grow-finish pigs in 20 herds, were tested for susceptibility to 10 antimicrobials representing seven classes. twelve percent of the isolates were susceptible to all drugs, while 64% were resistant to two or more antimicrobial classes. resistance was most common to clindamycin, azithromycin, and erythromycin (71% each), and 10% of the isolates were resistant to ciprofloxacin. an antimicrobial use risk-factor analysis and ... | 2009 | 19343934 |
| reciprocal association between atopy and respiratory symptoms in fully employed female, but not male, workers in swine operations. | in large commercial swine operations, workers are exposed to indoor air-contaminants during their work-shift. in recently developed large swine operations, exposures are typically 8 or 12 hours/day and females account for a sizeable proportion of the workers. implications of enhanced exposures and gender require evaluation. two hundred and forty male and 134 female swine barn workers and 184 male and 227 female nonfarming rural dwellers (controls) (mean age +/- sd males: 36.2 +/- 11.9; females: ... | 2009 | 19437288 |
| human infection with a triple-reassortant swine influenza a(h1n1) virus containing the hemagglutinin and neuraminidase genes of seasonal influenza virus. | a reassortant influenza a(h1n1) virus of swine origin distinct from the pandemic h1n1 2009 strain was isolated from 3 patients, all of whom worked at the same large hog operation in saskatchewan, canada. the genomic composition of the isolates has not been previously reported, to our knowledge, and was the product of a genetic reassortment between seasonal h1n1 and triple-reassortant influenza virus that emerged in north american swine during the late 1990s. the neuraminidase and hemagglutinin g ... | 2010 | 20199242 |
| livestock-associated methicillin-resistant staphylococcus aureus sequence type 398 in humans, canada. | rates of colonization with livestock-associated methicillin-resistant staphylococcus aureus (mrsa) sequence type 398 have been high for pigs and pig farmers in canada, but prevalence rates for the general human population are unknown. in this study, 5 la-mrsa isolates, 4 of which were obtained from skin and soft tissue infections, were identified from 3,687 tested mrsa isolates from persons in manitoba and saskatchewan, canada. further molecular characterization determined that these isolates al ... | 2010 | 20350371 |
| distribution of salmonella serovars in breeding, nursery, and grow-to-finish pigs, and risk factors for shedding in ten farrow-to-finish swine farms in alberta and saskatchewan. | the study objectives were to investigate salmonella prevalence, serovar distribution, and risk factors for shedding in 10 purposively selected farrow-to-finish farms in saskatchewan and alberta. pooled fecal samples from the breeding and grow-finish phases and individual fecal samples from breeding, nursery, and grow-finish pigs were cultured for salmonella; serotyping of isolates was performed. pig and pen characteristics were recorded for each pig and pen sampled.overall, 407/1143 (36%) of sam ... | 2010 | 20592836 |
| canadian integrated program for antimicrobial resistance surveillance (cipars) farm program: results from finisher pig surveillance. | in 2006, the canadian integrated program for antimicrobial resistance surveillance (cipars) farm program was implemented in sentinel grower-finisher swine herds in québec, ontario, manitoba, saskatchewan and alberta. herds were visited 1-3 times annually. faecal samples were collected from pens of close-to-market (ctm) weight (>80 kg) pigs and antimicrobial use (amu) data were collected via questionnaires. samples were cultured for generic escherichia coli and salmonella and tested for antimicro ... | 2010 | 21083820 |
| porcine teschovirus polioencephalomyelitis in western canada. | beginning in 2002, a small number of pig farms in western canada began reporting 4-7-week-old pigs with bilateral hind-end paresis or paralysis. low numbers of pigs were affected, some died, most had to be euthanized, and those that survived had reduced weight gains and neurological deficits. necropsies revealed no gross lesions, but microscopic lesions consisted of a nonsuppurative polioencephalomyelitis, most severe in the brain stem and spinal cord. the lesions were most consistent with a vir ... | 2011 | 21398466 |
| disease risks associated with free-ranging wild boar in saskatchewan. | this study investigated the disease status of saskatchewan's feral wild boar population. whole carcasses, tissue samples, and/or serum from 81 hunter-killed boars from saskatchewan were submitted to the canadian wildlife health cooperative (cwhc) between 2009 and 2014. serological tests were negative for prrs, h1n1, and h3n2 swine influenza, pcv-2, and tge/prcv in 22/22 boars and for toxoplasma gondii and mycoplasma hyopneumoniae in 20/20 boars. of 20 boars whose sera were tested 20 were positiv ... | 0 | 26246630 |