In areas where scrub tick is prevalent, sheep should be regularly inspected during the late winter and spring when tick populations rapidly increase. If detected, dipping with an appropriate registered tickicide is recommended. Internal parasites Like all other animals, sheep have worms which can kill them or severely restrict their development and wool growth. Where sheep are run continuously in the same paddock, worm infestations can build up rapidly. Diagnosing worms depends a lot on knowing how your sheep looks or behaves normally.
Healthy sheep have pink membranes in their eyes and pink skin around their mouth.
If they are on sufficient feed they will be in good condition and will move freely, eating occasionally and later lying down to chew their cud. Worms in sheep can be effectively controlled with modern drenches. Paddock rotation can assist in reducing pasture contamination and is recommended. Wormy sheep have pale to white membranes and skin. They lose condition rapidly, often have a humpy back and do not move out to feed as often or as freely as healthy sheep do.