230 VETEEINART STATE BOARD 



Describe the operation of rumenotomy in the cow. 



Shave and disinfect the skin in the left flank. Introduce a 

 bistoury through the skin, muscles and rumen wall at the point where 

 the rumen is usually punctured and make a quick downward 

 incision, 4 to 6 inches long. The skin incision should be a little 

 longer than that in the wall of the rumen to prevent food from 

 entering the peritoneal sac. A piece of cloth may be placed in the 

 lower angle of the wound for the same purpose. Close the wound 

 in the rumen securely with catgut or silk, using interrupted sutures. 

 Suture the abdominal muscles in a similar way and the skin in the 

 iisual way. Some operators draw the skin to one side before making 

 the incision through it so that the openings through the different 

 layers do not overlap. 



Give the indications for laparotomy in the cow. 



Foreign bodies in the rumen or intestines. Displacement of 

 internal organs. Dystocia, where normal delivery is impossible. 

 Gut-tie in the ox. 



Give the symptoms and the treatment of inguinal hernia. 



Symptoms : The hind limbs are moved stiffly, dragging the toes. 

 The animal stretches out, shows slight colic and draws up the testicle 

 of the affected side. Strangulation of the incarcerated intestines 

 may produce violent colicky symptoms. In old-standing cases, the 

 testicle is atrophied and flaccid. Rectal examination will aid in the 

 diagnosis. 



Treatment: Fast the animal and evacuate the bowels. Place 

 the patient on its back, chloroform and replace the hernial contents. 

 Apply active friction to the cord to produce a swelling which will 

 fill the abdominal ring. (A mild vesicant is often used.) Another 

 method is to perform castration by means of clamps and the covered 

 operation. The latter method is to be preferred because this defect 

 is transmitted to offspring and such animals should not be used for 

 breeding ; furthermore, it is a more satisfactory and surer method. 



Describe in detail the surgical method of reduction of an inguinal 

 hernia in a stallion without resorting to the castration of 

 the same. 

 See answer to preceding question. 



Give the treatment of an umbilical hernia, the size of a hen's egg, in 

 a colt one year old. 

 Produce an inflammatory swelling of the hernial ring by inject- 

 ing into it a weak solution of silver nitrate and apply a truss. A 



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