LICE 287 



A mud wallow will afford white hogs a means of pro- 

 tection from the heat of the sun. A coating of black mud 

 on a white hog will serve the same purpose as the black 

 cuticle of the black hog, namely, it will arrest the rays of 

 the sun and not allow the entire quantity to go into the 

 interior of the body. A hog that has free access to a mud 

 wallow can keep cool during the heated weather by lying 

 in the mud and this also puts the skin of a hog in good 

 condition. After being taken out of the mud wallow and 

 thoroughly cleaned and dressed up, a hog is in very good 

 show condition so far as his skin is concerned. When 

 the mud wallow is used, it should be kept sanitary. A 

 good way to do this is to have a small stream of water 

 running through it at all times. 



The Water Wallow. Lice are also destroyed by hav- 

 ing water wallows and using either crude oil or some of 

 the coal tar dips in the water. The most natural water 

 wallow, namely, a creek or other stream, cannot be pre- 

 pared in this way, but where the water stands either in 

 pools on the ground naturally, or where a cement trough 

 is provided for this purpose, the water may be properly 

 prepared to destroy lice as the pigs wallow in it. This 

 also should be kept sanitary. 



The Rubbing Post. The rubbing post is sometimes 

 used as a means for destroying lice. Lice usually first 

 inhabit the arm pit, or place between the forearm and 

 brisket, and the place back of the ears on the neck. The 

 lice as well as the nits will usually be found in these 

 places first and later they will spread over the entire 

 body. The nits or eggs are small elongated white objects 

 that may readily be seen with the naked eye and are fas- 

 tened to the hairs. The rubbing post is intended to de- 

 stroy the lice and nits at the side of the hog, and espe- 



