108 Sheep Management. 



during the hottest hours of the summer day. Most 

 of the droppings of the ewes are found here and 

 consequently the freshest and nicest grass grows 

 in this place. The innocent lambs get up from 

 their shady resting place, begin nibbling on this 

 fresh-looking grass, eat grass and worms together, 

 and the worms find their natural homes in the 

 lambs' stomachs and begin the work of destruc- 

 tion at once. It is peculiar that older sheep pos- 

 sess a certain instinct which keeps them from cat- 

 ing very much near shade trees but leads them off 

 for a distance, just as if they realized the danger 

 at hand. The lambs, like other young animals, 

 are easily caught in the trap, and thus are infested 

 with the worms more than the older sheep. The 

 older sheep also seem to possess more power to re- 

 sist the attacks of stomach worms. Experiments 

 carried on at the agricultural colleges have clearly 

 demonstrated that lambs get these parasites on 

 pasture. At the Ohio Experiment Station lambs 

 that were fed all summer in a barn were kept free 

 from parasites, while others that were turned out 

 to pasture were badly infested. 



THE PREVENTION OF STOMACH WORMS. 



It is far easier to prevent infection with stomach 

 worms than it is to destroy the worms when the 

 sheep have become infested with them. Nothing 



