PMID: 602013Jan 1, 1977Paper

Etiology and epizootiology of helminthiases on commercial sheep raising farm complexes

Veterinarno-meditsinski nauki
D E BankovM M Spasov

Abstract

Studies were carried out on the etiology of the helminth infections at three industrial sheep complexes typical of this country. The mixed gastrointestinal infection, having an urgent epizootiologic and economic importance, proved that of H. contortus, O. circumcincta, O. trifurcata, M. marshalli, T. colubriformis, T. axei, N. spathiger, N. fillicollis, C. oncophora, B. Trigonochephalum, S. papillosus, T. ovis, Ch. ovina, and O. venulosum. The seasonal and age dynamics of the general Strongylus infection was followed up. Well established were the postpartum phase in ewes and the spring phase in weaned lambs so far as ova excretion was concerned. In goat mulleriosis there was a typically runnung postpartum and spring phase in larvae excretion. Currently dangerous for replacement animals at the complexes was spring moniesiosis, caused by M. expansa, and the autumn one, caused by M. benedeni. High percent of infection and heavy parasite burdens were shown with the infection of S. papillosus during the warm months of the year, the course of which ran without clinical symptoms. Potentially dangerous were infections of D. filaria, Protostrongylus species, M. capillaris, D. lanceatum and F. hepatica. A scheme is suggested for chemopro...Continue Reading

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