A massive mycetoma was observed in the abdominal cavity of a 3-year-old spayed female Labrador Retriever dog which originated from France. The mycetoma lesion involved adhesion with one-half of the spleen, several portions of the small and large intestine, and the diaphragm. Histologically the distict hypertrophy of the intestinal muscle layer and wide spread deposition of the hemosiderin through the affected abdominal organs and thrombosis of aplenic arterioles with athematous change were recognized as persistant. There were also debilitating changes in the affected organs. From the histological appearance of the fungal colonies it was presumed that the causative fungus was Allescheria boydii.

Forty–two weaned Sudan Desert lambs of both sexes were divided into three equal sex and age groups and were randomly assigned to one of three diets: Humra + limited amount of cottonseed cake and a complete ration (dura 44 % cottonseed cake 25% dry humra 29% salt 1.5% and vitamin minerals 0.5%). All diets were fed adlibitum for eleven weeks. Then differential feeding was stopped and each group was fed ad libitum on the complete ration for twelve weeks. Two lambs from both sexes were chosen at random for each nutritional treatment, and were slaughtered before the beginning of the trial. Half of the remaining lambs in each treatment was slaughtered at the end of the differential feeding period and the other half at the end of the trial. Generally, the live weight gain of lambs fed on Humra, with or without cottonseed cake, was poor whereas lambs fed on the complete ration made significantly (p

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Cytauxzoon felis, susceptibilities of (i) domestic cats to inoculation with infected bobcat blood and ground tissues; (ii) domestic cats to subinoculation with blood from cats having received bobcat blood; (iii) inoculated cats to subsequent challenge exposure with deep-frozen virulent inoculum of domestic cat origin; and (iv) eastern bobcat to reinoculation with various doses of virulent Cytauxzoon inoculum of domestic cat origin; additional experiments to determine if piroplasm levels in bobcats and domestic cats could be raised to maximize chances for further transmission of Cytauxzoon to domestic cats

nematodes, dogs, ivermectin activity; no activity against cestodes

Anaplasma marginale, morphologic characteristics of colonies in Dermacentor andersoni midgut epithelial cells

Rhipicephalus sanguineus and Ctenocephalides spp. on kennelled dogs, seasonal prevalence and mean numbers and percentages of immature and adult ticks and of fleas recovered from various sites on dogs

In 1973-1974, 4 controlled tests were performed in pony foals (n = 17) raised parasite-free and experimentally infected with Strongyloides westeri. Administration of infective larvae by stomach tube in 1 test resulted in low-grade infections and tended to invalidate the test. Intraoral and percutaneous (intra-aural) administration of larvae resulted in suitable test infections for 1 and 2 tests, respectively. A paste formulation of dichlorvos at 36.3 mg/kg of body weight removal from 4 ponies. Treatment of 4 the dosage rate of 44 mg/kg was consistently effective (greater than 99% to 100%) for eliminating intestinal infections of S westeri.

intestinal parasites, dogs, prevalence, sex of host and neutering procedure, age of host, mixed infections, diagnosis by fecal examination

Parafilaria bovicola, cattle, epizootiology, results of questionnaire survey among cattle owners revealed that (i) condemnation losses due to parasite were overrepresented among animals that came from herds held on pasture the previous year, as opposed to those from farms with indoor cattle management only; (ii) statistically significant difference between affected and nonaffected herds with respect to age groups; and (iii) frequency of lesions showed seasonal trend: Sweden