322 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 decply 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. Rheumatism, 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 loss, and lousy pigs cannot 
give ag 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 
