The Vet. Book 



part, and is due to the blood supply being cut off; 

 thus it will follow if a bandage is applied too 

 tightly, or a part constricted by some other means. 

 Gangrene is not uncommon in the udders of 

 sheep and the teats of cows, occa- 

 sionally following garget. 



The part becomes cold, greenish, 

 and subsequently black. 



In one case, seen by the writer, 

 gangrene of the udder in a cow 

 came on within a few hours. The 

 muscles are sometime gangrenous. 



Gapes 



So called, owing to the leading 

 symptom, namely gaping. It affects 

 poultry, turkeys, pheasants, par- 

 tridges and other birds, being pro- 

 duced by minute thread-worms, 

 attached to mem- infecting the air-tubes, and once 



brane of windpipe h disease appears am0 ngSt birds 

 (magnified) . 



it is exceedingly difficult to get rid 

 of, and one infected bird may infect the lot. A 

 wet season favours it, and the worms are coughed 

 up, thus spreading the infection. 



Change the birds to fresh ground, and separate 

 the infected one from the others. See that the 

 water supply is pure, and the addition of a little 

 lime-water will have a beneficial effect. 



The affected birds may be caught and a feather 



Male and Female 

 Gape Worm 



8 4 



