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close this bookIntegrated Helminth Control - KARI technical note no. 2 (DFID - KARI, 1999, 54 p.)
close this folderPART FOUR - The Strategies
View the documentTreating only clinical cases
View the documentAnaemia Diagnosis
View the documentSeasonal Anthelmintic Use
View the documentRapid Rotation
View the documentDose & Move
View the documentMedicated Feed Blocks
View the documentToxocara Treatment
View the documentUse of narrow spectrum drugs
View the documentAlternate Grazing
View the documentBoma Rotation
View the documentUse of genetic resistance
View the documentMixed use of broad and narrow spectrum drugs
View the documentCropping Rotation
View the documentSeasonal Fluke Treatment

Alternate Grazing

By using a "leader and follower" system, the cleanest pasture can be retained for the more susceptible animals and the more contaminated pasture can be grazed by the most resistant stock. These latter animals may also help clean the pasture of infectious larvae.

The "leaders" in the system are normally the younger animals and the followers the older animals. The system can also utilise differences in breed or species susceptibility, with small ruminants grazing ahead of cattle or more resistant genotypes such as red maasai sheep grazing behind more susceptible types.