214 



THE VETERINARIAN 



nant water. The larvae are again taken up either in the 

 drinking water or in eating grass or hay gathered on 

 low marshy soil. Warm wet weather favors their devel- 

 opment. 



Symptoms: This worm is liable to attack a number 

 of animals at the same time. The weakest sheep and 

 young lambs are the first to show signs by coughing 

 forcibly, distressing, hacking and convulsive in character. 



-p^' 

 •i". * 



r. 



Champion Cotswold Ewes. 

 Owned by F. A. Koser, Eickreall, Ore. 



A stringy mucus is sometimes expelled during the spasm 

 of coughing. This mucus contains worms which can be 

 detected, or their ova observed under a magnifying glass. 

 In the latter stages of the disease, they cough severely 

 at night. These attacks have a sub-acute character and 

 prove very exhausting. The parasite by becoming en- 

 twined in balls severely affects the animaPs breathing 

 which is always remarkably labored in the latter stages 

 of the disease. The animal refuses to eat, becomes ema- 



