The Influence of Mechanochemical Technology on Anthelmintic Efficacy of Supramolecular Complexes of Fenbendazole with Licorice Extract

The purpose of the research is studying the effect of mechanochemical technology on anthelmintic efficacy of supramolecular complexes of fenbendazole with licorice extract. Materials and methods. Tests of the supramolecular complexes of fenbendazole (SMCF) with licorice extract (LE) were carried out on 127 heads of young sheep spontaneously infected by Nematodirus sp. and other types of gastrointestinal strongylates. For each helminthosis, animals of different groups of 8–11 animals each were given single oral administration of SMCF with LE in a dose of 2.0 mg/kg in AD in the form of 10 and 17 % powders and 2.4 and 4.5% suspensions in comparison with the basic drug – fenbendazole (FBZ) in a dose of 2.0 mg/kg. SMCF with LE was developed according to mechanochemical technology for 2 hours. The baseline was a group of sheep that did not receive the drug. The anthelmintic efficacy of the preparations was taken into account according to the results of coproovoscopic studies of sheep by flotation before and 16 days after the preparations were used. Accounting for the effectiveness of drugs was carried out according to the "control test" type. Results and discussion. SMСF with LE in a dose of 2.0 mg/kg by AD in the form of 10 and 17% powders and 2.4 and 4.5% suspensions showed respectively 89.2; 83.12; 82.09 and 83.59% effectiveness against Nematodirus spp. and 88.73; 67.3; 83.87 and 86.38% activity against other types of Strongylata when receiving 22.7 and 21.9% effect of the base drug – FBZ.

Download Full-text

Efficacy of solid dispersion of fenbendazole against gastrointestinal strongylatosis of young cattle

Russian Journal of Parasitology ◽

10.31016/1998-8435-2021-15-1-92-97 ◽

2021 ◽

Vol 15 (1) ◽

pp. 92-97

Author(s):

A. I. Varlamova ◽

I. A. Arkhipov ◽

K. M. Sadov ◽

S. S. Khalikov ◽

M. V. Arisov ◽

...

Keyword(s):

Solid Dispersion ◽

Mechanical Mixture ◽

Control Group ◽

Control Test ◽

Mechanochemical Processing ◽

Basic Drug ◽

Group V ◽

Anthelmintic Efficacy ◽

Young Cattle ◽

Flotation Method

The purpose of the research is to study the efficacy of solid dispersion of fenbendazole (SDF) against nematodoses of young cattle.Materials and methods. The study of SDF, obtained by mechanochemical processing of fenbendazole substance with polyvinylpyrrolidone (PVP) polymer, was carried out on 126 young cattle naturally infected with nematodiroses and other gastrointestinal strongylatoses. The animals were divided into 6 experimental groups of 10–11 animals each and SDF was administered once orally at doses of 2.0; 3.0 and 4.0 mg/kg of active substance (a.s.) (I-III groups) in comparison with the mechanical mixture of fenbendazole (FBZ) and PVP in a ratio of 1:9 (IV group) and substance FBZ at a dose of 3.0 mg/kg (group V) against each helminthosis. The control group of animals did not receive the drugs. Anthelmintic efficacy was evaluated in the "control test" based on the data of ovoscopic examination of feces of young cattle by flotation method before and 17 days after drugs administration.Results and discussion. SDF with PVP at a dose of 2.0; 3.0 and 4.0 mg/kg of a.s. in the form of a 10% powder showed respectively 88.4; 97.3 and 100% efficiency at nematodiroses and 89.2; 98.4 and 99.5 % activity against other types of gastrointestinal strongylates upon obtaining 32.3 and 32.4 % effect of the mechanical mixture of FBZ with PVP and 29.7 and 27.4% efficiency of the base preparation at a dose of 3.0 mg/kg. SDF showed 88.4; 97.3 and 100% of efficacy at doses of 2.0; 3.0 and 4.0 mg/kg of a.s., respectively, against nematodiroses and 89.2; 98.4 and 99.5% against other gastrointestinal strongylatoses in the form of 10% powder. It should be noted that mechanical mixture of PBZ with PVP showed 32.3 and 32.4% efficacy and the efficacy of the basic drug was 29.7 and 27.4% at a dose of 3.0 mg/kg against each helminthosis.

Download Full-text