PubMed Central (PMC3 - NLM DTD)
Archive of life sciences journal literature at the U.S. National Institutes of Health (NIH), developed and managed by NIH's National Center for Biotechnology Information (NCBI) in the National Library of Medicine (NLM).
The Canadian Veterinary Journal
Mostrando recursos 13,281 - 13,300 de 14,151
A degenerative encephalomyelopathy in 7 Kuvasz puppies - Hazlett, Murray J.; Smith-Maxie, Laura L.; de Lahunta, Alexander
Seven Kuvasz puppies from 2 same-parentage litters developed weakness and ataxia. Six necropsied dogs had lesions in caudate nucleus, cerebellar nuclei and folia, and spinal cord. Lesions seen were felt to be familial or due to the effects of an amprolium-induced thiamine deficiency on the developing brains of these puppies.
The effect of treatment duration on weaning weights in a cow-calf herd with a protracted severe outbreak of diarrhea in calves - Gow, Sheryl; Waldner, Cheryl; Ross, Carol
The objective of this study was to describe a multiyear outbreak of calf diarrhea in an Alberta cow-calf herd and the impact of severe diarrhea on calf productivity. A retrospective analysis was performed through the use of detailed individual animal records and laboratory reports. The most significant laboratory finding was Salmonella Typhimurium isolated from the fecal samples of 2 ill members of the treatment crew and from 3 calves on postmortem examination. In 2002, at the peak of the outbreak, 90.3% (325/360) of the calves required treatment and 8.9% (32/360) of the calves died. In 2003, the severity of the...
A cross-sectional study of reproductive indices and fawn mortality in farmed white-tailed deer - Haigh, Jerry; Berezowski, John; Woodbury, Murray R.
Data were obtained from a questionnaire administered to a random sample of Canadian and United States white-tailed deer (WTD) farmers. Reproductive indices and survival of fawns from birth until 1 y of age were examined. Major factors in limiting herd increase were a low reproductive rate (88 fawns per 100 does exposed to bucks) and a 30% mortality of fawns from birth until 1 y of age. The latter figure differs from reported mortality rates in fallow deer and red deer/wapiti. The unacceptably high neonatal mortality on WTD farms was determined to be as important to herd productivity as failure...
Medical management of a patent ductus venosus in a dog - McQuaid, Timothy S.
A 2.5-year-old dog with signs of weight loss, vomiting, and hepatic encephalopathy was diagnosed with a patent ductus venosus, based on serum biochemical analysis, jejunal portography, and biopsies, and treated with lactulose, antibiotics, and a reduced protein diet. Two years after initial presentation, the dog is still being managed medically.
Prevalence of Cryptosporidium parvum infection in southwestern Ontario and its association with diarrhea in neonatal dairy calves - Trotz-Williams, Lise A.; Jarvie, Brenna D.; Martin, S. Wayne; Leslie, Kenneth E.; Peregrine, Andrew S.
Cryptosporidium parvum infection was detected in 203 (40.6%) of 500 Ontario dairy calves aged 7 to 21 d, on a convenience sample of 51 farms with a history of calf diarrhea. Within-farm prevalence ranged from 0% to 70%, and both shedding and intensity of shedding were significantly associated with diarrhea. This parasite appears to be common in Ontario dairy calves and important as a cause of dairy calf scours in the province.
A clinical trial to assess the use of sodium hypochlorite and oxytetracycline on the healing of digital dermatitis lesions in cattle - Silva, Luiz A.F.; Silva, Carla A.; Borges, José R.J.; Fioravanti, Maria C.S.; Borges, Gabriela T.; Atayde, Ingrid B.
The increased frequency of diseases, especially those of the hoof, cause economic losses, such as premature culling of affected animals, decreased milk production, weight loss, reduced fertility, and the high costs of treatment. A great variety of hoof conditions may affect cattle, one of them is digital dermatitis. These conditions are probably due to multiple factorial diseases and present with similar clinical signs. Bovine lameness is typically treated by foot trimming and debridment of the lesions, coupled when necessary with systemic antibiotics and therapeutic footbaths, which results in a clinical cure in the majority of the cases. The objective of...
Congenital aganglionosis in a 3-day-old Holstein calf - Forzán, María J.; McClure, J T.
Necropsy of a 3-day-old Holstein heifer revealed proximal megacolon and distal colorectal hypoplasia. Histologically, the hypoplastic distal colon and rectum lacked submucosal and myenteric ganglia. Clinical history, physical examination, and pathologic findings were consistent with intestinal aganglionosis, a congenital anomaly well documented in humans and foals but not previously reported in cattle.
Insulinoma in 2 guinea pigs (Cavia porcellus) - Vannevel, Janice Y.; Wilcock, Brian
This paper describes an insulinoma in 2 guinea pigs (Cavia porcellus). Both guinea pigs presented with neurologic signs and low blood glucose readings. The neurologic signs resolved with dextrose administration. Insulinoma was confirmed on postmortem examination.
Adenomyosis with severe inflammation in the uterine cervix in a dog - Tamada, Hiromichi; Kawate, Noritoshi; Inaba, Toshio; Kuwamura, Mitsuru; Maeda, Masaya; Kajikawa, Taketsugu; Sawada, Tsutomu
A dog with purulent vulval discharge was found to have many cysts containing purulent mucus in the uterine cervix. The uterine horns did not contain any pus. Histological examination revealed a cervical adenomyosis infiltrated by many neutrophils. After an ovariohysterectomy including the whole cervix, the dog recovered well.
A retrospective study of the diagnoses and survival of elk admitted to a large animal referral clinic - Keppie, Nathan J.; Naylor, Jonathan M.
Abstract Information for veterinarians regarding diseases of farmed elk remains scarce despite an increase in the size of the industry. This retrospective study examines all (n = 245) elk cases admitted to the Western College of Veterinary Medicine over an 11-year period (1991 to 2001). Age, gender, date of admission, diagnosis, and outcome were examined. Diarrhea, fractures, and other musculoskeletal problems were most common. Most (76%) cases involved elk under 1 y of age; these were more commonly diagnosed with fractures or diarrheal disease. Elk older than 1 y of age tended to be diagnosed with fractures or noninfectious...
Chronically starved horses: Predicting survival, economic, and ethical considerations - Whiting, Terry L.; Salmon, Ray H.; Wruck, Gustave C.
Nine of 45 horses subjected to prolonged malnutrition died subsequent to being placed with a responsible caregiver and being provided an appropriate diet. Initial extreme poor body condition score tended to be associated with death, although individual response to refeeding varied. The financial costs of stabilizing the group of horses significantly exceeded their free market price. Responsible management of chronically starved commercial animals should include options for immediate euthanasia.
Bile peritonitis associated with gastric dilation-volvulus in a dog - Hewitt, Saundra A.; Brisson, Brigitte A.; Holmberg, David L.
This report describes a case of septic peritonitis and gall bladder rupture in German shepherd dog that developed 7 d after surgical treatment for gastric dilation-volvulus. Histological examination confirmed gall bladder necrosis, secondary to an acute ischemic event. Postoperative acute necrotizing cholecystitis has not been a previously reported complication in dogs.
A comparison of the cytobrush and uterine lavage techniques to evaluate endometrial cytology in clinically normal postpartum dairy cows - Kasimanickam, Ramanathan; Duffield, Todd F.; Foster, Robert A.; Gartley, Cathy J.; Leslie, Ken E.; Walton, John S.; Johnson, Walter. H.
This study compares cytobrush and lavage techniques for the assessment of endometrial cytology (EC) in clinically normal postpartum dairy cows. The EC samples were collected from Holstein cows (n = 35) during visit 1 (V1) at 20 to 33 d in milk (DIM) and 2 wk later during visit 2 (V2) at 34 to 47 DIM by using both techniques. A minimum of 100 cells were counted to determine the percentage of cells that were neutrophils (%PMN). The mean %PMN was significantly different between the techniques at V1 (P = 0.001), but not at V2 (P = 0.474). Overall, the...
A preliminary equine abuse policy with potential application to veterinary practice - Christie, Julie L.; Hewson, Caroline J.; Riley, Christopher B.; McNiven, Mary A.; Dohoo, Ian R.; Bate, Luis A.
An equine abuse policy was developed as an adjunct to an equine management survey. If at least 3 of 5 categories caused concern, a report to the authorities was indicated. The policy was not used but, in the absence of other guidelines, it might assist veterinarians considering potential abuse cases.
Bilateral flexor tendon contracture following onychectomy in 2 cats - Cooper, Maureen A.; Laverty, Peter H.; Soiderer, Emily E.
Two cats presented with bilateral flexor tendon contracture following onychectomy. This previously unreported complication proved to be painful and debilitating. Deep digital flexor tenectomy successfully resolved the problem. Twelve months after surgery, the first cat remains free of complications. The second cat recovered full limb function, but died of unrelated causes.
A review of Neospora caninum in dairy and beef cattle a Canadian perspective - Haddad, João Paulo A.; Dohoo, Ian R.; VanLeewen, John A.
Neospora caninum is one of the most important causes of abortion in cows. The occurrence of N. caninum infection in beef and dairy cattle has been reported worldwide, and in most provinces in Canada. The objective of this review is to summarize our current understanding of N. caninum in dairy and beef cattle for Canadian bovine practitioners. The review covers the life cycle of the agent, its mechanisms of transmission, clinical signs, and tests for diagnosing the infection. Data on the prevalence of the infection in Canadian dairy and beef cattle are reviewed and briefly compared with estimates from other...
Choanal lymphosarcoma in a 7-year-old golden retriever: Diagnosis and treatment - Shankel, Catharine A.
A 7-year-old, spayed female, golden retriever with a 1-year history of progressive stertor and reverse sneezing was referred for further diagnostics. Endoscopy and computed tomography of the head revealed a bilobed mass in the choanae. Cytologic and histopathologic examinations of the mass were consistent with lymphosarcoma. Treatment consisted of chemotherapy.
Primary splenic mesenchymal chondrosarcoma in a dog - Miller, Jonathan M.; Walshaw, Richard; Bourque, Andrea C.
A large splenic mass was found during exploratory celiotomy in a 12-year-old Labrador retriever. Histologic examination of the mass revealed a mesenchymal chondrosarcoma. The dog was euthanatized 7 wk postoperatively, due to suspected tumor recurrence. Extraskeletal mesenchymal chondrosarcomas are rare in dogs and are associated with a guarded prognosis.