A comparison of the filtration, concentration, and thick smear techniques in the diagnosis of Schistosoma bovis infection in cattle and goats.
The syringe and the modified Bell filtration techniques, the cellophane faecal thick smear (Kato/Katz) and Teesdale (sandwich) smear techniques, and the formol-ether concentration technique were compared for efficiency for detection of eggs of Schistosoma bovis in faeces from cattle and goats. Both filtration techniques were highly effective as revealed by high sensitivity and mean egg counts. However, efficiency declined markedly using formalin-fixed faecal material. The efficiency of the Teesdale technique was comparable to that of the filtration techniques, whereas the efficiency of the Kato/Katz technique in goats and the formol-ether concentration technique in cattle was markedly lower. The ease of performance combined with the high sensitivity make the syringe filtration and the Teesdale techniques recommendable for field diagnosis of schistosomiasis in domestic stock.
Olaechea
F V
FV
Danish Bilharziasis Laboratory, Charlottenlund, Denmark.
Christensen
N O
NO
Henriksen
S A
SA
D000704:Analysis of Variance; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000175:diagnosis*; D005243:Feces / Q000469:parasitology*; D005374:Filtration; D015511:Goat Diseases / Q000175:diagnosis*; D006041:Goats; D010270:Parasite Egg Count / Q000662:veterinary; D011237:Predictive Value of Tests; D012547:Schistosoma / Q000302:isolation & purification*; D012552:Schistosomiasis / Q000175:diagnosis / Q000662:veterinary*