294 BUILDINGS, SANITATION, AND DISEASES 



entirely away from the premises occupied by the hogs in charge 

 of the other. Carcasses of hogs which die should be burned or 

 buried so deeply that they are not likely to be dug up by dogs 

 or other animals, and disinfection 'should be systematic and 

 thorough. 



Feeding for Health. Feeding has been dealt with in 

 another place, but the importance of feeding in such a way as 

 to maintain vigor cannot be too deeply impressed. Hogs which 

 are fed in an injudicious manner have their vitality weakened 

 and are more likely to contract disease than those which have 

 been furnished a suitable ration. 



Light. Sunlight is a good disinfectant, and an effort 

 should be made to admit plenty of direct sunlight into all pens. 

 It must be remembered that disease germs flourish best in the 

 dark. 



Ventilation and Dryness. To the difficulty of securing 

 adequate ventilation in the piggery, may be traced a great 

 many troubles which affect pigs. Eheumatism, bronchitis, 

 pneumonia, and scours, the last mentioned being most common 

 in young pigs, are among the commonest winter troubles of 

 swine, and are generally caused by lack of ventilation and con- 

 sequent dampness in the building. Unless ventilation is pro- 

 vided and the pens kept reasonably dry, good results cannot be 

 expected. 



Lice. When lice once become well established in a herd, 

 it requires a good deal of painstaking effort to eradicate them. 

 They may be the cause of serious los's, and lousy pigs cannot 

 give as good returns for feed consumed as those which are kept 

 clean. It is also claimed by good authorities that lice weaken 

 the vitality of hogs and render them more susceptible to disease. 



Almost any of the better-known dips will prove effective 

 if used according to directions. A two per cent solution of 



