Interference with sawfly (Arge pullata) poisoning in Fasciola hepatica-infected lambs.
Lambs harbouring an 8-week-old infection with Fasciola hepatica, together with fluke-free animals, were dosed orally with 2 g per kg body weight of sawfly larvae (Arge pullata). Fluke-free, non-dosed lambs and lambs infected only with F. hepatica served as controls. Clinico-pathological observations on sawfly-dosed, fluke-free lambs revealed the characteristic picture of sawfly poisoning. Four of six animals had to be killed in extremis. In contrast, sawfly-dosed, fluke-infected lambs exhibited only moderate clinico-pathological signs of sawfly poisoning and no deaths occurred. A reduction in the sawfly-induced liver pathology as a consequence of the concurrent F. hepatica infection was also noted. Possible factors responsible for the antagonistic effect of F. hepatica infection on sawfly poisoning in lambs are discussed.
Olaechea
F V
FV
Institute of Microbiology and Hygiene, Royal Veterinary and Agricultural University, Copenhagen, Denmark.
Thamsborg
S M
SM
Christensen
N O
NO
Nansen
P
P
Robles
A
A
D000818:Animals; D004798:Enzymes / Q000097:blood; D005210:Fasciola hepatica / Q000469:parasitology*; D005211:Fascioliasis / Q000662:veterinary*; D005243:Feces / Q000469:parasitology; D006790:Host-Parasite Interactions; D006927:Hymenoptera; D007814:Larva; D008099:Liver / Q000201:enzymology / Q000473:pathology; D008297:Male; D012756:Sheep; D012757:Sheep Diseases / Q000097:blood / Q000469:parasitology* / Q000473:pathology
D004798:Enzymes