title: Comparison of microfilaria concentration method for Setaria digitata infection in cattle and for Dirofilaria immitis infection in dogs.
abstract: Several peripheral blood microfilaria concentration methods that use Acetone (Acetone test), 2% formalin (modified Knott method), 5% Tween 20 solution, distilled water, 1% or 0.1% SDS were compared for their efficacy in detecting Setaria digitata microfilaria in cattle. The Acetone test was found to be more efficacious than the modified Knott method or the 5% Tween 20 solution test for detecting the S. digitata microfilaria in bovine blood. However, besides the Acetone test, the modified Knott method was also found to be suitable for Dirofilaria immitis microfilaria detection in dogs. SDS and distilled water were found not to be effective as hemolytic agent for the disruption of the red blood cell of both the cattle and dogs. Thus, the Acetone test is recommended for the primary screening of microfilaremia of S. digitata in cattle.
authors.affiliation: Department of Veterinary Medicine, National Chung Hsing University, Taichung, Taiwan.
authors.forename: Yuko
authors.initials: Y
authors.lastname: Watanabe
authors.forename: Chen-Hsiung
authors.initials: CH
authors.lastname: Yang
authors.forename: Kwang-Chong
authors.initials: KC
authors.lastname: Tung
authors.forename: Hong-Kean
authors.initials: HK
authors.lastname: Ooi
mesh_terms: D000096:Acetone; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000175:diagnosis* / Q000469:parasitology; D004183:Dirofilaria immitis / Q000302:isolation & purification*; D004184:Dirofilariasis / Q000175:diagnosis*; D004283:Dog Diseases / Q000175:diagnosis* / Q000469:parasitology; D004285:Dogs; D005069:Evaluation Studies as Topic; D005557:Formaldehyde; D008842:Microfilariae; D011136:Polysorbates; D017182:Setaria Nematode / Q000302:isolation & purification*; D012719:Setariasis / Q000175:diagnosis*; D012967:Sodium Dodecyl Sulfate
chemical_list: D011136:Polysorbates; D000096:Acetone; D005557:Formaldehyde; D012967:Sodium Dodecyl Sulfate