Российский паразитологический журнал (Oct 2019)
Anthelmintic efficacy of preparations against ascariasis in chickens
Abstract
Objective of research: The purpose of this study is to evaluate the anthelmintic efficacy of preparations against chicken ascariasis under conditions of Western Kazakhstan. Material and methods: Experiments were performed in May 2016 on 43 chickens from the zoo of the West Kazakhstan Regional Ecological and Biological Center of the Uralsk city of the Republic of Kazakhstan spontaneously infected with Ascaridia galli. The infection rate was estimated using the helminthovoscopic methods of examinations by Fulleborn. All chickens were divided into four groups of 10-20 individuals each. Ivermec OR was administered to chickens of the first group at a single dose of 0,04 ml/kg orally individually; of the second group - Alvet at the dose of 50 mg/kg orally twice at a 24 hour interval, individually; of the third group- Piperazine at the dose _of 250 mg/kg orally twice at a 24 hour interval, individually. Chickens of the fourth group did not receive the preparation and served as controls. The efficacy of preparations was evaluated 7 days after dehelmintization according to the result of «the control test». Eggs A. galli were detected by the flotation method with the use of VIGIS counting chamber for calculation of helminth eggs in 1 g of feces. During the experiment we observed the dynamics of discharge of dead ascarides, carried out helminthoscopy every 12 hours, and after the introduction of anthelmintics on the first day - every 4-6 hours. Results and discussion: No ascarides were found in all chickens of the first and second experimental groups that received Ivermec OR and Alvet respectively; the extenseffectiveness (EE) of preparations was 100 %. No ascarides were detected only in 8 chicken of the third group; the extenseffectiveness (EE) was 80 %. Chickens of the control group remained infected with A. galli at the beginning and at the end of experiment. After giving the anthelmintics to chickens, no side effects were observed.
