bovis - Articles
Nematodirus spp
Synonym(s): Thread-necked worm
Introduction
Classification
Taxonomy
- Phylum: nematoda.
- Class: secernentea.
- Superfamily: trichostrongyloidea.
Distribution
- Worldwide: Nematodirus spp of cattle have a cosmopolitan distribution, but N. battus is more localized, generally being confined to regions in northern latitudes including Scandinavia, Britain, parts of North America.
Significance
- Nematodirus helvetianus is generally thought to be non-pathogenic in cattle.
- Nematodirus spathiger and N. battus are parasites of sheep and have only been rarely recorded in cattle.
Active Forms
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Resting Forms
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Clinical Effects
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Diagnosis
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Further Reading
Publications
Refereed Papers
- Recent references from PubMed and VetMedResource.
- Van Dijk J, De Louw M D E, Kalis L P A & Morgan E R (2009) Ultraviolet light increases mortality of nematode larvae and can explain patterns of larval availability at pasture. Intern J Parasitol 39, 1151-1156 PubMed.
- Van Dijk J & Morgan E R (2008) The influence of temperature on the development, hatching and survival of Nematodirus battus larvae. Parasitology 135, 269-283 PubMed.
- Ballweber L R (2006) Endoparasite Control. Vet Clin Food Anim Pract 22, 451–461.
- Bairden K & Armour J (1987) Nematodirus battus infection in calves. Vet Rec 121, 326-328 PubMed.
- Gibbs H C (1980) Persistence in pasture of the infective larvae of nematodes parasitizing Maine dairy cattle. Am J Vet Res 141, 1694–5 PubMed.
- Borgsteede F H M & Hendriks, J (1974) Identification of infective larvae of gastrointestinal nematodes in cattle. Tijdschr. Dlergeneesk 99, 103-113.
- Gibson T E (1963) Experiments on the epidemiology of Nematodiriasis. Res Vet Sci 4, 258-268.
Other sources of information
- Taylor M A, Coop R L & Wall R L (2016) Chapter 8 - Parasites of Cattle. In: Veterinary Parasitology. 4th edn. John Wiley & Sons, UK. pp 380-382.
- Taylor M (2015) Chapter 21, Applied Clinical Parasitology for Cattle Practitioners. In: Bovine Medicine. 3rd edn. Ed: Cockroft. John Wiley & Sons, UK. pp 198-210.
- Taylor M A (2004) Chapter 60, Antiparasitics. Ed: Andrews A H. Blackwell Science Ltd, 9600 Grassington Road, UK. pp 1019-1034.
Organisation(s)
- Control of Worms Sustainably (COWS) www.cattleparasites.org.uk