EFFICACY OF ANTHELMINTIC COMPOUNDS AGAINST COMMON GASTROINTESTINAL NEMATODES IN HORSES IN NORTHERN RIO DE JANEIRO

Leticia Dutra Cirne; Edna Barcelos Alves; Maria Vitória Lamóglia Bastos Ferreira; Vanessa Cola Thomazini; CLÓVIS DE PAULA SANTOS

Todos os Trabalhos

Trabalho

Título do Trabalho

EFFICACY OF ANTHELMINTIC COMPOUNDS AGAINST COMMON GASTROINTESTINAL NEMATODES IN HORSES IN NORTHERN RIO DE JANEIRO

Autores

Leticia Dutra Cirne
Edna Barcelos Alves
Maria Vitória Lamóglia Bastos Ferreira
Vanessa Cola Thomazini
CLÓVIS DE PAULA SANTOS

Modalidade

Resumo

Área temática

Helmintologia

Data de Publicação

24/09/2026

País da Publicação

Brasil

Idioma da Publicação

pt-BR

Página do Trabalho

https://www.even3.com.br/anais/23-congresso-brasileiro-de-parasitologia-veterinaria-673729/1543668-efficacy-of-anthelmintic-compounds-against-common-gastrointestinal-nematodes-in-horses-in-northern-rio-de-janeir

ISBN

978-65-272-2733-5

Palavras-Chave

Dewormer, nematode control, FECRT, FEC

Resumo

Regular evaluation of anthelmintic efficacy is a critical strategy for mitigating the development of parasite resistance. This study aimed to evaluate the effectiveness of several anthelmintic compounds in horses from the Northern region of Rio de Janeiro. Sixty Mangalarga Marchador horses (males and females) naturally infected with gastrointestinal nematodes were selected from a stud farm in São Francisco de Itabapoana, RJ. The animals were treated with fenbendazole (FB), ivermectin (IV), piperazine (PI), pyrantel pamoate combined with ivermectin (PA+), or doramectin combined with praziquantel (DP+). Fecal samples were collected on days 0, 7, 14, and 21 post-treatment to perform fecal egg counts (FEC), determine drug efficacy via the Fecal Egg Count Reduction Test (FECRT), and conduct larval cultures to identify resistant nematode species. Results indicated that only the PA+ combination was effective, achieving a 95% reduction in egg counts, with a predominance of cyathostomins. Values below this threshold suggest suspected or confirmed resistance. These findings highlight the need for ongoing monitoring and the implementation of integrated parasite control programs to ensure the sustainability of equine activities in the region.

Título do Evento: 23º Congresso Brasileiro de Parasitologia Veterinária
Cidade do Evento: Belo Horizonte
Título dos Anais do Evento: Anais do XXIII Congresso Brasileiro de Parasitologia Veterinária
Nome da Editora: Even3
Meio de Divulgação: Meio Digital

Como citar

CIRNE, Leticia Dutra et al.. EFFICACY OF ANTHELMINTIC COMPOUNDS AGAINST COMMON GASTROINTESTINAL NEMATODES IN HORSES IN NORTHERN RIO DE JANEIRO.. In: Anais do XXIII Congresso Brasileiro de Parasitologia Veterinária. Anais...Belo Horizonte(MG) Centro de Atividades Didáticas I (CAD 1) da Universidade Federal de Minas Gerais (UFMG), 2026. Disponível em: https//www.even3.com.br/anais/23-congresso-brasileiro-de-parasitologia-veterinaria-673729/1543668-EFFICACY-OF-ANTHELMINTIC-COMPOUNDS-AGAINST-COMMON-GASTROINTESTINAL-NEMATODES-IN-HORSES-IN-NORTHERN-RIO-DE-JANEIR. Acesso em: 13/10/2026