Operatiom and Minor Ailments 423 



small intestines. Sometimes in very bad cases, they will 

 traverse the bile duct, clogging the duct and reaching to 

 the liver. It is not always possible to see worms passed 

 from these pigs, but usually if the infestation is at all bad, 

 an occasional worm will be seen in the feces. A lack of 

 thrift in the • pigs and failure to respond to even large 

 quantities of good feed will be apparent. 



To treat the pigs successfully, they should be placed in a 

 dry pen for twelve hours, and then given a good vermifuge 

 mixed with their feed. The most satisfactory vermifuge 

 consists of three to five grains of santonin, and five to eight 

 grains of calomel to each 100 pounds of live weight. The 

 pigs may be weighed up, the feed distributed in a long 

 trough, and the drug sprinkled over the feed before the 

 pigs are given access to the trough. The pigs should be 

 confined for twenty-four hours longer in the dry pen so 

 that the worms which are discharged may be gathered up 

 and burned. It is obviously more convenient if the 

 pen in which the pigs are kept has a tight floor, so that 

 after the droppings have been scooped up, the floor may 

 be thoroughly disinfected with a strong solution of sheep 

 dip, so as to destroy any eggs which have been left on the 

 floor. 



BRONCHIAL TROUBLE 



Pigs farrowed in damp, cold weather when exercise 

 out of doors is difficult and when little sunlight is avail- 

 able, frequently suffer from bronchial troubles, the most 

 common of which is bronchial pneumonia. Due to a 

 lack of exercise, considerable quantities of fat accumulate 

 about the pigs' chests and throats, making breathing diffi- 

 cult, and starting an inflammation of the membranes 

 lining the bronchial tubes. The inflammation may spread 



