Anthelmintic Properties of Essential Oils to Control Gastrointestinal Nematodes in Sheep-In Vitro and In Vivo Studies

Overview

Journal Vet Sci

Publisher MDPI

Specialty Veterinary Medicine

Date 2022 Feb 24

PMID 35202346

Authors

Filip Strbac

Antonio Bosco

Maria Paola Maurelli

Radomir Ratajac

Dragica Stojanovic

Natasa Simin

Dejan Orcic

Ivan Pusic

Slobodan Krnjajic

Smaragda Sotiraki

Giorgio Saralli

Giuseppe Cringoli

Laura Rinaldi

Affiliations

Soon will be listed here.

Abstract

Herbal products such as essential oils may play a promising role in the treatment of infections caused by gastrointestinal nematodes (GINs). The aim of this study was to evaluate the in vitro potential of 11 essential oils (EOs) and one binary combination of isolated EO compounds, as well as the in vivo anthelmintic efficacy of two EO formulations. Four GIN genera were identified in the coproculture examination: , , and . The in vitro egg hatch test (EHT) was performed at six different concentrations (50, 12.5, 3.125, 0.781, 0.195 and 0.049 mg/mL) for each EO, whereas in the in vivo faecal egg count reduction test (FECRT), each EO sample was diluted in sunflower oil and orally administrated at a dose of 100 mg/kg to the different group of animals. In the EHT, the EOs of , , , and two types of were the most effective. The dominant compounds of these EOs were carvacrol, thymol, anethol, p-cymene and γ-terpinene, indicating their importance for the anthelmintic activity. In the FECRT, both EO type 1 and linalool:estragole combination show an anthelmintic potential with a mean effect on FECR of approximately 25%. The results suggest the possible role of tested EOs as anthelmintic agents in sheep farms, although further in vivo tests are needed.

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