title: [Seasonal dynamics of the main helminthiases on a sheep farm pasture].
abstract: Two-year observations were made on the seasonal and age dynamic of the basic helminth infections on a pasture complex of the village of Bochkovtsi , Veliko Turnovo district. The methods of F ulleborn , Berman , successive washing, and MacMaster were employed to investigate a total of 2198 fecal samples taken from 50 permanently marked lambs, weaned lambs, and ewes. The parasite burden and the species composition of the helminths were established via complete post-mortem examinations, resp., helminthologic necropsies of 19 ewes, 7 weaned lambs, and 5 lambs. Studied were also the surrounding field conditions in order to discover and investigate the biotopes. A total of 517 fresh-water snails of the Limnea truncatula species and 640 land ones of the Helicella obvia species were examined. The helminth fauna was established with the various categories of animals raised on the pasture complex along with the seasonal dynamic of the basic parasitic diseases. A programme for the prophylaxis and therapy was worked out.
mesh_terms: D000822:Animal Husbandry; D000818:Animals; D002031:Bulgaria; D005243:Feces / Q000469:parasitology; D005260:Female; D006373:Helminthiasis / Q000453:epidemiology / Q000469:parasitology; D006374:Helminthiasis, Animal; D010270:Parasite Egg Count / Q000662:veterinary; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology* / Q000469:parasitology
vernacular_title: Sezonna dinamika na osnovnite khelmintozi v edin pasishten ovtsekompleks.