Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-23T19:44:56.475Z Has data issue: false hasContentIssue false
  • English
  • Français

Host-specificity and morphometrics of female Haemonchus contortus, H. placei and H. similis (Nematoda: Trichostrongylidae) in cattle and sheep from shared pastures in São Paulo State, Brazil

Published online by Cambridge University Press:  04 March 2014

M.R.L. Silva ,
M.R.V. Amarante ,
K.D.S. Bresciani  and
A.F.T. Amarante
M.R.L. Silva
Affiliation:
UNESP - Universidade Estadual Paulista, Departamento de Parasitologia, Instituto de Biociências, CEP: 18618-970, Botucatu, São Paulo, Brazil
M.R.V. Amarante
Affiliation:
UNESP - Universidade Estadual Paulista, Departamento de Parasitologia, Instituto de Biociências, CEP: 18618-970, Botucatu, São Paulo, Brazil
K.D.S. Bresciani
Affiliation:
UNESP - Universidade Estadual Paulista, Departamento de Apoio, Produção e Saúde Animal, Faculdade de Medicina Veterinária, Rua Clóvis Pestana, 793 CEP: 16050-680, Araçatuba, São Paulo, Brazil
A.F.T. Amarante*
Affiliation:
UNESP - Universidade Estadual Paulista, Departamento de Parasitologia, Instituto de Biociências, CEP: 18618-970, Botucatu, São Paulo, Brazil
*
*E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

To better evaluate the usefulness of female Haemonchus specimens for specific identification, we undertook a detailed analysis of the morphology of a collection of worms obtained from cattle and sheep in shared pastures. Based on the results, we also more precisely evaluated the host-specificity of Haemonchus contortus, H. placei and H. similis occurring sympatrically in a farm located in the western region of São Paulo State, Brazil. A synlophe analysis was employed to identify the three species of Haemonchus. In cattle, the predominant species was H. similis (90.9%), followed by H. placei (9.1%). With the exception of one H. placei specimen, only H. contortus was found in sheep. The longest body length was found for H. placei specimens, followed by H. contortus and then H. similis. It was possible to distinguish H. similis females from H. contortus and H. placei on the basis of vulval structure. The synlophe analysis proved to be very useful for identification of H. contortus, H. placei and H. similis in epidemiological studies involving different species of ruminants in the same pastures. The finding that H. placei and H. similis were adapted to cattle and that H. contortus was adapted to sheep also confirmed the high host-specificity of the three nematodes species.

Type
Research Papers
Information
Journal of Helminthology , Volume 89 , Issue 3 , May 2015 , pp. 302 - 306
Copyright
Copyright © Cambridge University Press 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Amarante, A.F.T. (2011) Why is it important to correctly identify Haemonchus species? Revista Brasileira de Parasitologia Veterinária 20, 263–268.CrossRefGoogle ScholarPubMed
Amarante, A.F.T., Bagnola, J. Jr, Amarante, M.R.V. & Barbosa, M.A. (1997) Host specificity of sheep and cattle nematodes in São Paulo state, Brazil. Veterinary Parasitology 73, 89–104.CrossRefGoogle ScholarPubMed
Bresciani, K.D.S., Nascimento, A.A., Costa, A.J., Amarante, A.F.T., Perri, S.H.V. & Lima, L.G.F. (2001) Freqüência e intensidade parasitária de helmintos gastrintestinais em bovinos abatidos em frigorífico da região noroeste do Estado de São Paulo. Semina: Ciências Agrárias 22, 93–97.Google Scholar
Condi, G.K., Soutello, R.V.G. & Amarante, A.F.T. (2009) Moxidectin-resistant nematodes in cattle in Brazil. Veterinary Parasitology 161, 213–217.CrossRefGoogle ScholarPubMed
Gasbarre, L.C., Smith, L.L., Hoberg, E. & Pilitt, P.A. (2009) Further characterization of a cattle nematode population with demonstrated resistance to current anthelmintics. Veterinary Parasitology 166, 275–280.CrossRefGoogle ScholarPubMed
Gibbons, L.M. (1979) Revision of the genus Haemonchus Cobb, 1898 (Nematoda: Trichostrongilidae). Systematic Parasitology 1, 3–24.CrossRefGoogle Scholar
Giudici, C., Aumont, G., Mahieu, M., Saulai, M. & Cabaret, J. (1999) Changes in gastro-intestinal helminth species diversity in lambs under mixed grazing on irrigated pastures in the tropics (French West Indies). Veterinary Research 30, 573–581.Google ScholarPubMed
Hoberg, E.P., Lichtenfels, J.R. & Gibbons, L. (2004) Phylogeny for species of Haemonchus (Nematoda: Trichostrongyloidea): considerations of their evolutionary history and global biogeography among Camelidae and Pecora (Artiodactyla). Journal of Parasitology 90, 1085–1102.CrossRefGoogle ScholarPubMed
Jacquiet, P., Cabaret, J., Thiam, E. & Cheikh, D. (1998) Host range and the maintenance of Haemonchus spp. in an adverse arid climate. International Journal for Parasitology 28, 253–261.CrossRefGoogle Scholar
Lichtenfels, J.R., Pilitt, P.A. & Le Jambre, L.F. (1986) Cuticular ridge patterns of Haemonchus contortus and Haemonchus placei (Nematoda: Trichostrongiloidea). Proceedings of the Helminthological Society of Washington 53, 94–101.Google Scholar
Lichtenfels, J.R., Pilitt, P.A. & Hoberg, E. (1994) New morphological characters for identifying individual specimens of Haemonchus spp. (Nematoda: Trichostrongiloidea) and a key to species in ruminants of North America. Journal of Parasitology 80, 107–119.CrossRefGoogle Scholar
Lima, W.S. (1998) Seasonal infection pattern of gastrointestinal nematodes of beef cattle in Minas Gerais State - Brazil. Veterinary Parasitology 74, 203–214.CrossRefGoogle Scholar
Nicolau, C.V.J., Amarante, A.F.T., Rocha, G.P. & Godoy, W.A.C. (2002) Relação entre desempenho e infecções por nematódeos gastrintestinais em bovinos Nelore em crescimento. Arquivo Brasileiro de Medicina Veterinária e Zootecnia 54, 351–357.Google Scholar
Riggs, N.L. (2001) Experimental cross-infections of Haemonchus placei (PLACE, 1893) in sheep and cattle. Veterinary Parasitology 94, 191–197.CrossRefGoogle ScholarPubMed
Rocha, R.A., Bresciani, K.D.S., Barros, T.F.M., Fernandes, L.H., Silva, M.B. & Amarante, A.F.T. (2008) Sheep and cattle grazing alternately: nematode parasitism and pasture decontamination. Small Ruminant Research 75, 135–143.CrossRefGoogle Scholar
Santiago, M.A.M., Costa, U.C. & Bevenenga, S.F. (1975) Estudo comparativo da prevalência de helmintos em ovinos e bovinos criados na mesma pastagem. Pesquisa Agropecuária Brasileira, Série Veterinária 10, 51–56.Google Scholar
Troell, K., Tingstedt, C. & Höglund, J. (2006) Phenotypic characterization of Haemonchus contortus: a study of isolates from Sweden and Kenya in experimentally infected sheep. Parasitology 132, 403–409.CrossRefGoogle ScholarPubMed
Ueno, H. & Gonçalves, P.C. (1998) Manual para diagnóstico das helmintoses de ruminantes. 4th edn. 143 pp. Tokyo, Japan International Cooperation Agency.Google Scholar