Heterobilharzia americana, dogs (exper.), diagnosis, development of indirect hemagglutination test

Dirofilaria immitis, dogs (exper.), location, growth, and time required for larvae to molt and develop

Strongylus vulgaris, ponies (exper.), diethylcarbamazine did not prevent clinical or pathological changes due to migrating larvae, fewer adults recovered at necropsy from treated vs. untreated ponies

Strongylus vulgaris, massive infections of nonimmune and immune ponies, pathogenesis characterized, blood chemical and peritoneal fluid values as possible diagnostic aids

Dermacentor andersoni, transmission of Anaplasma marginale to splenectomized calves by injection of gut homogenates from incubated vs. non-incubated adult ticks

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.

oxfendazole bolus for cattle, spray-dried lactose quality as influencing in vitro dissolution and bioavailability

nematodes of ponies, efficacy of oxibendazole in paste formulation, 1-group critical test compared with 2-group control test

Dirofilaria immitis, Dipetalonema reconditum, prevalence in dogs: Virginia; North Carolina

Sarcocystis cruzi, calves fed sporocysts of 2 different isolates from coyotes, number of merozoites in peripheral blood, duration of parasitemia, and extent of multiplication of merozoites