Helminthiasis characterization and anthelmintic efficacy for ewes and lambs raised in tropical semiarid region

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dc.creatorGabriela Almeida Bastos
dc.creatorLeydiana Duarte Fonseca
dc.creatorAdriano Vinícius de Paiva Ferreira
dc.creatorMarco Aurélio Morais Soares Costa
dc.creatorMaria Luiza França Silva
dc.creatorViviane de Oliveira Vasconcelos
dc.creatorRogério Marcos de Sousa
dc.creatorEduardo Robson Duarte
dc.date.accessioned2023-03-01T12:02:06Z
dc.date.accessioned2025-09-09T01:24:18Z
dc.date.available2023-03-01T12:02:06Z
dc.date.issued2017-03-28
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipOutra Agência
dc.identifier.doi10.1007/s11250-017-1276-x
dc.identifier.issn1573-7438
dc.identifier.urihttps://hdl.handle.net/1843/50546
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.rightsAcesso Restrito
dc.subjectCordeiros
dc.subjectDoenças parasitárias
dc.subjectTrichostrongylidae
dc.titleHelminthiasis characterization and anthelmintic efficacy for ewes and lambs raised in tropical semiarid region
dc.typeArtigo de periódico
local.citation.epage943
local.citation.spage937
local.citation.volume49
local.description.resumoIn this study the helminthiasis and anthelmintic effectiveness in ewes and lambs were evaluated in a semiarid region of Brazil. Twelve sheep farms were investigated using semi-structured questionnaires and fecal egg count (FEC) reduction test was employed to analyze the profile of anthelmintic resistance. Groups of at least 10 animals with FEC ≥ 300 were selected. After 12 h of fasting, homogeneous groups of lambs or ewes were treated with albendazole, levamisole moxidectin, or oxfendazole and control groups were not treated. Feces were collected before treatments and 14 days after, and larvae genera were identified after cuprocultures in both periods. Extensive grazing was the predominant creation system, using hybrid Santa Ines animals. The separation by age was promoted in 75% of herds; however, maternity pickets there were only in three farms. The strategic treatments were performed only in 8.4% of sheep farms and 16.6% used the anthelmintic efficacy test and alternated anthelmintic classes after 1 year. The initial FEC means for lambs were significantly higher than ewe FEC averages. For lamb tests, moxidectin and levamisole showed higher efficacy (p ≤ 0.05) than benzimidazoles. For ewe tests, moxidectin and levamisole showed efficiencies >75%. Haemonchus spp. and Trichostrongylus spp. were the most frequent nematodes before treatments and the genus Haemonchus was the most prevalent after anthelmintic treatments (p < 0.05). Variations of anthelmintic susceptibility were observed for categories and herds evaluated, which emphasizes the importance of the effectiveness tests for the choice of anthelmintics for ewes and lambs.
local.publisher.countryBrasil
local.publisher.departmentICA - INSTITUTO DE CIÊNCIAS AGRÁRIAS
local.publisher.initialsUFMG
local.url.externahttps://link.springer.com/article/10.1007/s11250-017-1276-x

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