Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-20T03:41:02.016Z Has data issue: false hasContentIssue false
  • English
  • Français

Morphological variation between isolates of the nematode Haemonchus contortus from sheep and goat populations in Malaysia and Yemen

Published online by Cambridge University Press:  26 November 2012

A.A. Gharamah ,
W.A. Rahman  and
M.N. Siti Azizah
A.A. Gharamah*
Affiliation:
School of Biological Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
W.A. Rahman
Affiliation:
School of Biological Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
M.N. Siti Azizah
Affiliation:
School of Biological Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
*
*E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

Haemonchus contortus is a highly pathogenic nematode parasite of sheep and goats. This work was conducted to investigate the population and host variations of the parasitic nematode H. contortus of sheep and goats from Malaysia and Yemen. Eight morphological characters were investigated, namely the total body length, cervical papillae, right spicule, left spicule, right barb, left barb, gubernaculum and cuticular ridge (synlophe) pattern. Statistical analysis showed the presence of morphological variation between populations of H. contortus from Malaysia and Yemen, with minor variation in the synlophe pattern of these isolates. Isolates from each country were grouped together in the scatterplots with no host isolation. Body, cervical papillae and spicule lengths were the most important characters that distinguished between populations of the two countries. This variation between Malaysia and Yemen may be attributed to geographical isolation and the possible presence of a different isolate of this worm in each country.

Type
Research Papers
Information
Journal of Helminthology , Volume 88 , Issue 1 , March 2014 , pp. 82 - 88
Copyright
Copyright © Cambridge University Press 2012 

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

Barger, I.A., Siale, K., Banks, D.J.D. & Le Jambre, L.F. (1994) Rotational grazing for control of gastrointestinal nematodes of goats in a wet tropical environment. Veterinary Parasitology 53, 109–116.Google Scholar
Budiño, B., Lamas, J., Pata, M.P., Arranz, J.A., Sanmartín, M.L. & Leiro, J. (2011) Intraspecific variability in several isolates of Philasterides dicentrarchi (syn. Miamiensis avidus), a scuticociliate parasite of farmed turbot. Veterinary Parasitology 175, 260–272.Google Scholar
Chandrawathani, P. (2004) Problems in the control of nematode parasites of small ruminants in Malaysia: Resistance to anthelmintics and the biological control alternative. Unpublished PhD thesis, Swedish University of Agricultural Sciences, Uppsala, Sweden.Google Scholar
El-Azazy, O.M.E. (1995) Seasonal changes and inhibited development of the abomasal nematodes of sheep and goats in Saudi Arabia. Veterinary Parasitology 58, 91–98.Google Scholar
Gharamah, A.A., Rahman, W.A. & Siti Azizah, M.N. (2011a) Phenotypic differences of Haemonchus contortus from sheep and goats in the States of Perak and Kelantan, Peninsular Malaysia. Acta Parasitologica 56, 412–417.CrossRefGoogle Scholar
Gharamah, A.A., Rahman, W.A. & Siti Azizah, M.N. (2011b) Morphological characterization of Haemonchus contortus in sheep (Ovis aries) and goats (Capra hircus) from two governorates in Yemen. World Journal of Zoology 6, 263–276.Google Scholar
Gibbons, L.M. (1979) Revision of the genus Haemonchus Cobb, 1898 (Nematoda: Trichostrongylidae). Systematic Parasitology 1, 3–24.CrossRefGoogle Scholar
Hunt, P.W., Knox, M.R., Le Jambre, L.F., McNally, J. & Anderson, L.J. (2008) Genetic and phenotypic differences between isolates of Haemonchus contortus in Australia. International Journal of Parasitology 38, 885–900.Google Scholar
Hunter, A.G. & Heath, P.J. (1984) Ovine internal parasitism in the Yemen Arab Republic. Tropical Animal Health Production 16, 95–106.CrossRefGoogle ScholarPubMed
Jacquiet, P., Cabaret, J., Cheikh, D. & Thiam, E. (1997) Identification of Haemonchus species in domestic ruminants based on morphometrics of spicules. Parasitology Research 83, 82–86.CrossRefGoogle ScholarPubMed
Lichtenfels, J.R. & Hoberg, E.P. (1993) The systematics of nematodes that cause ostertagiasis in domestic and wild ruminants in North America – an update and a key to species. Veterinary Parasitology 46, 33–53.Google Scholar
Lichtenfels, J.R. & Pilitt, P.A. (2000) Synlophe patterns of the Haemonchinae of ruminants (Nematoda: Trichostrongyloidea). Journal of Parasitology 86, 1093–1098.Google Scholar
Lichtenfels, J.R., Pilitt, P.A. & Le Jambre, L.F. (1986) Cuticular ridge patterns of Haemonchus contortus and Haemonchus placei (Nematoda, Trichostrongyloidea). Proceedings of the Helminthological Society of Washington 53, 94–101.Google Scholar
Lichtenfels, J.R., Pilitt, P.A. & Le Jambre, L.F. (1988) Spicule lengths of the ruminant stomach nematodes Haemonchus contortus, Haemonchus placei, and their hybrids. Proceedings of the Helminthological Society of Washington 55, 97–100.Google Scholar
Lichtenfels, J.R., Pilitt, P.A. & Hoberg, E.P. (1994) New morphological characters for identifying individual specimens of Haemonchus spp. (Nematoda, Trichostrongyloidea) and a key to species in ruminants of North America. Journal of Parasitology 80, 107–119.Google Scholar
MAFF (Ministry of Agriculture, Fisheries and Food) (1986) Manual of veterinary parasitological laboratory techniques. 3rd edn.160 pp. London, HSMO Publications.Google Scholar
Measures, L.N. & Anderson, R.C. (1983) New subspecies of the stomach worm, Obeliscoides cuniculi (Graybill), of Lagomorphs. Proceedings of the Helminthological Society of Washington 50, 1–14.Google Scholar
Nation, J.L. (1983) A new method using hexamethyldisilazane for preparation of soft insect tissues for scanning electron microscopy. Stain Technology 58, 347–351.Google Scholar
Rossanigo, C.E. & Gruner, L. (1995) Moisture and temperature requirements in faeces for the development of free-living stages of gastrointestinal nematodes of sheep, cattle and deer. Journal of Helminthology 69, 357–362.Google Scholar
Sani, R.A., Adnan, M., Cheah, T.S. & Chandrawathani, P. (2004) Helminth control for small ruminant in Malaysia. Journal Veterinary Malaysia 16, 1–8.Google Scholar
Soulsby, E.J.L. (1965) Textbook of veterinary clinical parasitology. Helminths. Vol.1. 1120 pp. Oxford, Blackwell Scientific Publications.Google Scholar
Troell, K., Waller, P. & Hoglund, J. (2005) The development and overwintering survival of free-living larvae of Haemonchus contortus in Sweden. Journal of Helminthology 79, 373–379.Google Scholar
Urquhart, G.M., Armour, J., Duncan, J.L., Dunn, A.M. & Jennings, F.W. (1996) Veterinary parasitology. 2nd edn.284 pp. Oxford, Blackwell Science Publications.Google Scholar
USAID (United States Agency for International Development) (2009) Unhealthy animal markets in Yemen threaten domestic livestock. Available at website http://urbanhealthupdates.wordpress.com/category/countries/yemen/ (accessed 15 July 2011).Google Scholar
Whitlock, J.H. & Le Jambre, L.F. (1981) On the taxonomic analysis of the genus Haemonchus Cobb, 1898. Systematic Parasitology 3, 7–12.Google Scholar