A dairy where calves and replacement heifers are raised elsewhere might make use of this program. Periodic examination of manure to ensure low parasite burdens would be of help. Parasite control makes use of both management procedures and dewormers. Dewormers are given to all animals both spring and fall. This is a time honored plan which is based on tradition and convenience and makes use of the fact that animals are often handled in the spring and fall anyway.
Parasite control makes use of both dewormers and appropriate management procedures.
Adult animals and nursing calves are not dewormed. Young, weaned animals are dewormed in the spring beginning as soon as grass comes out and three or more times at three to five week intervals. These animals are also dewormed in November. Routine microscopic fecal exams are used to monitor effectiveness. This plan would work well on a farm of average animal density and better than average management.