Affiliation:
1. Dnipro State Agrarian and Economic University , S. Efremova St., 25, Dnipro , 49600 , Ukraine
2. Oles Honchar Dnipro National University , Gagarin Ave. 72, Dnipro , 49010 , Ukraine
Abstract
Summary
The laboratory experiment described in this article evaluated the death rate of larvae of Haemonchus contortus (Rudolphi, 1803) nematodes of the Strongylida order and Strongyloides papillosus (Wedl, 1856) of the Rhabditida order under the impact of different concentrations of 8 flavouring acids and source materials approved for use in and on foods and in medicine (formic, wine, benzoic, salicylic, stearic, kojic, aminoacetic, succinic acids). Minimum LD50 for third stage larvae of (L3) S. papillosus was observed with salicylic and wine acids, for L3
H. contortus larvae – with formic acid. Minimum impact on all studied stages of development of nematodes was caused by stearic, kojic, aminoacetic and succinic acids: larvae did not die in the course of one day even at 1 % concentration of these substances. The best parameters of LD50 were observed for benzoic and formic acid. Further experiments on flavouring acids and source materials approved for use in and on foods and in medicines, and also their compounds, will contribute to developing preparations with a stronger impact on nematode larvae – parasites of the digestive tract of vertebrate animals and humans.
Subject
Animal Science and Zoology,Parasitology
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