Pathogenicity ofO. circumcincta, O. ostertagiaandH. contortusin weanling stag fawns(Cervus elaphus)

Autor:	A.S. Familton, McAnulty Rw, J.T. Johnston, Andrew R. Sykes
Rok vydání:	1984
Předmět:	Larva Veterinary medicine General Veterinary biology Ostertagia Weanling General Medicine biology.organism_classification Pathogenicity Nematode Pepsin parasitic diseases biology.protein Cervus elaphus Ostertagia circumcincta
Zdroj:	New Zealand Veterinary Journal. 32:177-179
ISSN:	1176-0710 0048-0169
DOI:	10.1080/00480169.1984.35114
Popis:	Groups of four stag fawns, weighing 51 ± 0.8 kg, were infected with 30,000 larvae of one of three nematode parasites: O. circumcincta, O. ostertagia, or H.contortus. A further four remained as control. Individual feed intake, body-weight, faecal egg count and plasma pepsinogen concentration were measured during seven weeks after infection. Only infection with H. contortus caused significant elevation of pepsinogen concentration to 380 ml/L and consistent depression of feed intake (15%). Worm egg counts were below 300 e.p.g. in deer infected with all worm species. It is concluded that while resistance to development of parasites common to other species appears to be high further investigation of the susceptibility of deer to H. contortus infection would be justifiable.
Databáze:	OpenAIRE
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