Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Helminth infections and hybridization between Haemonchus contortus and Haemonchus placei in sheep from Santana do Livramento, Brazil

Texto completo
Autor(es):
de Almeida, Fabiana Alves [1] ; Bassetto, Cesar Cristiano [1] ; Vendrame Amarante, Monica Regina [1] ; Alexandre de Albuquerque, Ana Claudia [2] ; Costa Starling, Renan Zappavigna [2] ; Talamini do Amarante, Alessandro Francisco [1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Estadual Paulista, UNESP, Inst Biociencias, Botucatu, SP - Brazil
[2] Univ Estadual Paulista, UNESP, Fac Med Vet & Zootecnia, Botucatu, SP - Brazil
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Revista Brasileira de Parasitologia Veterinária; v. 27, n. 3, p. 280-288, JUL-SEP 2018.
Citações Web of Science: 1
Resumo

The occurrence and intensity of helminth infections were evaluated in sheep from pastures shared with cattle. In 2015 and 2016, young male sheep acquired in Santana do Livramento, Rio Grande do Sul, Brazil, were finished in integrated crop-livestock system. We selected the 12 sheep that showed the highest number of nematode eggs per gram of faeces to search for worms in the gastrointestinal tract. Haemonchus contortus and Trichostrongylus colubriformis were the major parasites. H. contortus presented mean intensities of 1,159 and 257 worms in 2015 and 2016, respectively. T. colubriformis displayed mean intensities of 4,149 and 2,427 worms in 2015 and 2016, respectively. Of the 127 male specimens of Haemonchus spp. analysed by Polymerase Chain Reaction (PCR), 125 were H. contortus, one Haemonchus placei and one hybrid. Other species detected were Cooperia punctata, Cooperia pectinata, Cooperia spatulata, Cooperia curticei, Ostertagia ostertagi, Teladorsagia circumcincta, Trichostrongylus axei, Nematodirus spathiger, and Trichuris ovis. Twenty lambs presented cysts of Taenia hydatigena in the liver and mesentery. One lamb presented Coenurus cerebralis, the larval stage of Taenia multiceps, in the brain. In conclusion, sheep from pasture shared with cattle presented a high diversity of nematode species. H. contortus and H. placei co-infection occur with consequent hybridization. (AU)

Processo FAPESP: 15/25718-7 - Profilaxia da verminose ovina utilizando o sistema de integração lavoura-pecuária (ILP)
Beneficiário:Fabiana Alves de Almeida
Linha de fomento: Bolsas no Brasil - Pós-Doutorado