A field study of some nematode parasites of bovines in a semi-arid area, with special reference to their biology and possible methods of prophylaxis

Abstract

Preliminary field investigations revealed the presence of Cooperia pectinata, C. punctata, Haemonchus placei, Oesophagostomum radiatum and Bunostomum phlebotomum as the most common parasites of bovines in the North Western Cape. Experiments on the ecology and epizootology of these parasites were carried out under field conditions, at the Armoedsvlakte Research Station near Vryburg in the North Western Cape. Possible methods of prophylaxis based on experimental observations are described, and the possible use of strategic drenching, using anthelminthics which gave promising results, is included.