The seasonal epidemiology of gastrointestinal nematodes in N'Dama cattle in The Gambia

Veterinary Parasitology
J Kaufmann, K Pfister

Abstract

From June 1987 to June 1988, a total of 180 N'Dama cattle were necropsied to identify and enumerate parasites present, including 39 sick calves and 25 dead calves from local village herds, and 116 adult cattle from a local abattoir. Of 175 animals infected with one or more helminths (97%), Haemonchus contortus was found in 67% of all necropsied animals, Cooperia punctata in 75%, Cooperia pectinata in 55%, Oesophagostomum radiatum in 71% and Bunostomum phlebotomum in 21%. There was a wide range of worm burdens (0-22 925) and a pronounced seasonal pattern occurred. Eighty-two percent of the total adult Haemonchus burden occurred during the rainy season (June-October). By the end of the rainy season, almost 100% of the Haemonchus burden was present as inhibited larvae. By contrast, a different survival strategy appeared to occur in Cooperia spp.; Oesophagostomum spp. and Bunostomum spp., which were found as adults throughout the year. Results indicated that, apart from malnutrition during the dry season, gastrointestinal nematode infections, especially haemonchosis, represent a major constraint on the health and productivity of N'Dama cattle under West African savanna conditions.

References

Apr 1, 1988·Veterinary Parasitology·S N ChiejinaB O Eze

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Citations

Mar 26, 1998·International Journal for Parasitology·P JacquietD Cheikh
Jan 27, 1998·Preventive Veterinary Medicine·P IttyK Pfister
Aug 10, 2012·Parasites & Vectors·Erick O MungubePeter-Henning Clausen
Nov 4, 2008·The Veterinary Journal·Nicole du ToitPadraic M Dixon
Jun 19, 2007·Research in Veterinary Science·Monica Natalie WymannJakob Zinsstag
Sep 11, 2014·Journal of Health Communication·Danielle A Naugle, Robert C Hornik
Mar 23, 2021·Journal of Parasitic Diseases : Official Organ of the Indian Society for Parasitology·Rana ElseadawySalah Abu-Elwafa

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