Canadian journal of veterinary research = Revue canadienne de recherche vétérinaire.
Publisher:
Canadian Veterinary Medical Association,
Frequency: Quarterly
Country: Canada
Language: English
Author(s):
Canadian Veterinary Medical Association.
Start Year:1986 -
Identifiers
| ISSN: | 0830-9000 (Print) 1928-9022 (Electronic) 0830-9000 (Linking) |
| NLM ID: | 8607793 |
| (DNLM): | SR0056819(s) |
| (OCoLC): | 13561247 |
| Coden: | CJVRE9 |
| LCCN: | sn 86032928 |
| Classification: | W1 CA619 |
Vesicular exanthema of swine virus: isolation and serotyping of field samples. Virus isolation was attempted from 262 field samples of vesicular material collected during the outbreaks of vesicular exanthema of swine in the U.S.A. from 1952-54. Using primary swine kidney culture, viral cytopathogenic agents were isolated from 76.3% of the samples. However, an overall recovery rate of 82.1% was obtained after samples negative in tissue culture were inoculated intradermally in susceptible swine. All vesicular exanthema of swine virus isolates were identified as serotype B51 using complement fixation and serum neutralization tests. Two isolates did not react with antisera t...
Toxigenic characteristics of Clostridium perfringens type C in enterotoxemia of domestic animals. Eleven Clostridium perfringens type C strains isolated from fatal cases of hemorrhagic enterotoxemia of Canadian calves, a piglet, and a foal were studied for the production of soluble antigens. All the isolates from calves and a foal failed to produce delta toxin, but were capable of producing large amounts of lethal beta toxin. A strain isolated from a piglet produced delta, but very little beta toxin. Other differences were relatively minor. The results indicated that young domestic animals may be susceptible to all subtypes of C. perfringens type C. A simple method of using blood agar plat...
Strongylus vulgaris in the tunica media of arteries of ponies and treatment with ivermectin. A preliminary investigation was made into the effect of fourth-stage Strongylus vulgaris larvae sequestered in the tunica media of ileocolic arteries of pony foals treated with ivermectin. The foals had been reared parasite-free, inoculated with infective larvae and given orally a placebo or ivermectin paste. Two foals received subsequently one or two further inoculations with larvae and treatment with ivermectin. Arteriography was used to identify the lesions in the ileocolic artery following inoculation and their regression following treatment. At necropsy, foals were examined for lesions an...
Myospherulosis in the subcutis of a pony. Myospherulosis was diagnosed in a mature pony. Several parent bodies containing many spherules were observed microscopically in biopsy material from an area of cellulitis. The spherules are altered red blood cells that form as the result of prolonged contact with necrotic fat or petrolatum-based ointments. These structures must be differentiated from fungal elements. The recommended treatment is surgical excision.
Extensive large colon resection in the pony. I. Surgical procedures and clinical results. The effect of resection of 75% (length measurement) of the large colon in ponies was studied. Ten ponies in good physical condition were divided into two groups: group I consisted of the six experimental ponies and group II of four control ponies. Preoperatively and postoperatively for five months, ten clinicopathological parameters were determined: body weight, venous blood pH, plasma bicarbonate, total plasma protein concentration, serum electrolyte values (sodium, potassium, chloride), and fecal osmolarity. Subjective assessment of attitude and appetite revealed no difference between the gr...
Extensive large colon resection in the pony. II. Digestibility studies and postmortem findings. The nutritional implications and adaptive processes resulting from resection of 75% of the length of the large colon in ponies were investigated. Ten ponies in good physical condition were divided into two groups: six in the experimental group and four in the control group. During the sixth postoperative month, two digestibility studies were conducted, and phosphate fractional renal excretion and serum biochemical profiles were determined in both groups. The ponies (N = 10) were euthanized six months postoperatively, and gross and histopathological examinations were performed. Results of the s...
Career profile of the Canadian Standardbred. I. Influence of age, gait and sex upon chances of racing. The objective of the present investigation was to provide demographic information regarding the career profile of the average Canadian Standardbred racehorse for application in undergraduate teaching and clinical decision-making. The study population of 762 horses was selected at random from the 1972 registrations of the Canadian Standardbred Horse Society. Sex, birthdate, and province of origin were recorded. Records of racing performance were summarized to provide annual statistics for number of races, money won, race times, and months raced over a ten year period from 1974 to 1983 inclusive...
Career profile of the Canadian Standardbred. II. Influence of age, gait and sex upon number of races, money won and race times. The objective of the study was to examine the career profile of the average racehorse in order to establish normal values for performance. Records of race performance for a population of 762 horses randomly-selected from the 1972 registrations of the Canadian Standardbred Horse Society were summarized to provide annual statistics for number of races, money won, and times for the mile (race times) over the period 1974 to 1983 inclusive. Results were analyzed to determine the influence of sex, gait, age, and year of the first race. The transformation log (1 + X) was used to achieve normality whe...
Career profile of the Canadian Standardbred. III. Influence of temporary absence from racing and season. The objective of the study was to examine the career profile of the average racehorse in order to establish normal values for performance. Records of race performance for a population of 762 horses randomly selected from the 1972 registrations of the Canadian Standardbred Horse Society were summarized and the pattern of racing by year and month from 1974 to 1983 inclusive recorded. Results were analyzed to determine the influence of sex, gait, age, and year of first race (starting year). The transformation log (1 + X) was used to achieve normality where necessary. Of the 762 horses, 507 raced,...
Quantitative fecal culture for early diagnosis of Corynebacterium (Rhodococcus) equi enteritis in foals. Quantitative culture of Corynebacterium (Rhodococcus) equi from feces of 17 foals on a farm (A) with an endemic C. equi infection problem and 26 foals on a farm (B) without the disease in the past decade was done with a selective medium at weekly or monthly intervals from April to August of 1984. Corynebacterium equi was observed in the feces of 16 of 17 foals on farm A, and 19 of 26 foals on farm B. The mean viable count of C. equi in one gram of feces was 4.1 +/- 3.7 (log10) on farm A, and 3.9 +/- 3.4 (log10) on farm B. Corynebacterium equi was recovered from feces of foals as young as two w...
[Determination of the standard oxyhemoglobin dissociation curve in horses. Effects of temperature, pH and diphosphoglycerate]. The equine blood oxyhemoglobin dissociation curve has been traced in its entirety in standard conditions and the effects of temperature, pH and 2,3-diphosphoglycerate on this curve have been measured. When compared to that of human blood, the curve showed a higher oxygen affinity of hemoglobin (23.8 +/- 0.8 versus 26.6 mm Hg). The effect of the pH, expressed by d log P50/dpH, was found to be identical in man and horse (-0.47). The effect of temperature, however, expressed by d log P50/dT, proved to be lower in the horse (0.016 versus 0.024). The P50 showed an increase of 1 mm Hg each time 2,3-...