It seems here on the farm around the 4th of July we run into what we call a WORM WALL. Even if we worm we start to notice the signs of a high worm infestation within our lamb flock. It must be the high humidity and heat this time of year.
For instance we wormed the ram lambs 3 weeks ago and this past weekend we started seeing several cases of bottle jaw. Bottle jaw is a sign of enema from high worm count. So we wormed again. Looks like our bottle jaw is corrected but you worry so much about the sheep building up a resistance to the wormer. We try switching back and forth but someday you wonder if any wormer will work at all.