OVERBERG RESEARCH PROJECTS .15. THE EFFICACY OF DIFFERENT ANTHELMINTICS AGAINST FIELD STRAINS OF NEMATODE PARASITES OF SHEEP IN THE SOUTHERN CAPE PROVINCE
Jp. Louw et Rk. Reinecke, OVERBERG RESEARCH PROJECTS .15. THE EFFICACY OF DIFFERENT ANTHELMINTICS AGAINST FIELD STRAINS OF NEMATODE PARASITES OF SHEEP IN THE SOUTHERN CAPE PROVINCE, Journal of the South African Veterinary Medical Association, 64(2), 1993, pp. 71-75
Controlled anthelmintic tests and faecal egg count reduction tests wer
e carried out on natural infections of nematode parasites in sheep on
4 farms in the southern Cape Province. Albendazole, fenbendazole, iver
mectin, levamisole, morantel citrate and a combination of albendazole
and closantel sodium were tested. Every farm harboured anthelmintic re
sistant nematode parasites. Adult as well as immature Teladorsagia spp
. were resistant to albendazole and fenbendazole, immature Teladorsagi
a spp. to albendazole/closantel, adult and immature Nematodirus spp. t
o albendazole/closantel and adult Nematodirus spp. to fenbendazole.