.40 THE FARM DOCTOR. 



p.irt. The narrowing results from mechanical injury in 

 choking, etc., or from the presence of a worm {spiropterd) 

 which Hves in galleries on the mucous membrane. 



The symptoms are the formation of an extended diffuse soft 

 swelling along the furrow on the left side of the neck, when the 

 animal feeds or drinks, and the subsidence of this swelling 

 during abstinence. The only permanent treatment is by 

 bougies or probangs passed daily, beginning with those that 

 will just pass the stricture, and using them larger as the former 

 ones begin to pass easily. The food must be restricted to soft 

 mashes and gruels. 



Cattle are usually slaughtered when attacked in good con- 

 dition. 



IMPACTION OF THE CROP IN BIRDS. 



Symptoms. — Want of appetite, dulness, sinking of the head 

 between the wings, ruffled plumage, and enormous and firm 

 distension of the crop, easily recognised when the bird is 

 handled. 



Treatincr.t consists in pouring down tepid water and mould- 

 ing the crop so as to force its contents a little at a time back 

 into the mouth. This failing, cut the crop open, empty it, sew 

 up the wound, and feed gruels or soft mush lor a few days. 



TYMPANY OF THE FIRST STOMACH IN RUMINANTS. HOOVE. 



BLOAllNG. 



Causes. — It is especially common in weak, ailing, or under- 

 fed stock when put on rich luxuriant food, especially green 

 food, in spring. Some food is dangerous, such as clover 

 (wliite and red) ; green food covered with dew or hoar frost, 

 soaked by inundations or drying after a shower; diseased oi 

 frosted potatoes or turnips (roots or tops) ; partially ripened 

 but uacured grain, and crowfoots and other acrid plants. It 

 may be caused by overloading the stomach with sound fodder 



