EXPERIMENT STATION BULLETINS. 495 



the various ways by which the germs causing the disease, may be intro- 

 duced into the herd. Preventive measures then would be to endeavor 

 to close up the avenues by which the germs may gain admittance. A 

 few suggestions along this line may not be out of place. 



Never introduce new hogs into the herd until they have first been 

 quarantined for five or six w r eeks. Care should also be taken in taking 

 females away for service. 



Do not allow hogs to have access to streams or stagnant ponds; sup- 

 ply water from wells. 



U cholera is anvwhere within a number of miles, divide the herd into 

 smaller droves and keep these separated from each other as far as pos- 

 sible. Confine the animals to comparatively small yards with good feed- 

 ing and nesting places. Keep the surroundings clean. The sprinkling 

 or air-slaked lime about the pens, or the use of a five per cent solution 

 of crude carbolic acid every few days will be found beneficial. Feed a 

 mixed diet and keep the animals as vigorous and thrifty as possible. A 

 powder composed of sulphate of iron ^ pound, bicarbonate of soda £ 

 pound, nux vomica £ pound and arsenic 1 drachm, thoroughly mixed, 

 giving to each four or five medium-sized hogs a tablespoonful once a 

 day, will help to produce thrift and vigor. 



If an animal manifests symptoms of disease remove the healthy ones 

 at once to new quarters, having first removed all dirt from them by the 

 liberal use of water. In the majority of cases it will probably be as 

 well to destroy the diseased animal at once, and burn the carcass and 

 thus try to hold in check the further spread of the disease. If thought 

 best, however, to treat, give dry, comfortable quarters, sloppy diet and 

 the drugs that have already been suggested. 



TO DISPOSE OF THE DEAD. 



Great care should be taken to see that the carcasses of the dead are 

 disposed of properly. It is better to burn the carcass along with the 

 litter and all that is of little value that has been used around the sick. 

 If not burned, bury deeply in some place where hogs will not be allowed 

 to run for a year or so, and before covering the carcass with dirt cover 

 it with air-slaked lime. In moving the carcass from where the animal 

 d'ed to where it is to be burned, or buried, guard against spreading the 

 germs along on the ground by placing the carcass in a box; afterwards 

 burn the box. 



TO CLEAN THE PENS WHERE ANIMALS HAVE DIED. 



If the pens are the small, portable, inexpensive kind, burn them or 

 discontinue their use for one or two years. If a larger structure, burn all 

 the litter and inexpensive parts, w r ash the inside thoroughly with a five 

 per cent solution of crude carbolic acid, or with a solution of corrosive 

 sublimate one part, to one thousand parts of water, i. e.,one ounce of cor- 

 rosive sublimate to eight gallons of water. This is probably better than 

 the carbolic acid solution but as it is a deadly poison, caution is neces- 

 sary in using it. Either of these solutions may be applied -with a broom 



