Haemonchus contortus with exceptionally long spicules recovered from vaal ribbok and bontebok, measurements

gastrointestinal nematodes in calves (exper.) causing severe anemia, effect on preparation of carrier erythrocyte ghosts and erythrocyte survival

mature Ostertagia ostertagi and immature Ostertagia spp. in naturally infected dairy calves, activity of levamisole; overwinter survival on pasture of gastrointestinal helminth free-living stages as found in necropsy of previously helminth free calves placed on pasture in April: Kentucky

helminths and arthropods collected from warthogs at monthly intervals, prevalence, rainfall and temperature data, clear patterns of seasonal abundance could be determined only for Physocephalus sexalatus and Haematopinus phacochoeri

gastrointestinal nematodes, calves (exper.), efficacy of ivermectin given subcutaneously or given orally as drench or paste

strongyles (predominantly cyathostomes), mares and their foals, dynamics of transmission studied on pastures previously free of parasites, fecal egg counts beginning day of parturition and based on time of year, relationship between weather conditions and pasture larval counts, necropsy findings in two foals: Texas

Strongylus vulgaris, establishment of patent infections in 6 of 8 helminth-free ponies given adult worms via nasogastric tube, removal of worms from cecum and ventral colon of donor horses, initial appearance of eggs in feces and maximum egg counts of recipients, percentage survival of adults after intragastric inoculation determined at necropsy

sarcocystosis causing death in calf immediately after birth, rosette and palisade configurations of merozoites in schizonts observed in histologic sections of gray and white matter from cerebrum; encephalitis, to lesser extent meningitis, and necrosis of cerebrum, cerebellum, and brain stem; calf's dam probably was exposed to infective cysts in feed or water contaminated by feces from carnivores

Sarcocystis odocoileocanis, S. odoi n. sp., and Sarcocystis sp. found in muscles of white-tailed deer, measurements, ultrastructure; cat fed Sarcocystis-infected meat from deer shed sporocysts 24 days later which probably belonged to S. odoi n. sp.

Sarcoptes scabiei var. suis, ivermectin, single treatment of infected sows before farrowing eliminated scabies from sows and prevented its transmission to their offspring, offspring remained uninfected throughout study regardless of whether they were treated with ivermectin at weaning, infection (epizootic) in growing pigs could be controlled by single treatment of all in-contact pigs but routine treatment of all pigs at weaning does not seem justified