Helminths, Arthropods and Protozoa of Domesticated Animals

abdomen adult Africa albendazole anaemia animals anthelmintics areas arthropods birds blood body buccal capsule caecum cats cattle cause cavity cells cercariae clinical signs coccidia coccidiosis contortus cycle cysts days after infection developmental Diagnosis diarrhoea disease dogs domestic dorsal dose effective eggs measure Eimeria equines Europe experimental faeces feed female fenbendazole fish flea flies forms genera genital Genus glands goats haemorrhagic hatch heavy infections Helminth horses immunity infection infective larvae ingestion insecticides intermediate hosts large numbers larvae larval stages lesions life-cycle liver male mature membrane merozoites mg/kg microfilariae migration mites moult mucosa nematodes North America occurs Oesophagostomum oesophagus oocysts organophosphate organs pair parasites pasture Pathogenesis pathogenic pigs posterior prepatent period produced proglottids Railliet resistance schizonts segments sheep skin small intestine snails Soulsby species spicules spines Sporulation Strongylus thorax tick tissues transmitted treatment Trypanosoma turkeys usually wall weeks wild worms