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BULLETIN 646, U. S. DEPARTMENT OF AGRICULTURE. 



and the premises thoroughly disinfected. Xew hogs brought to the 

 farm should be isolated or quarantined for two weeks before they 

 are permitted to run with the herd. 



Hog lice: Hogs, and especially young pigs, often suffer much from 

 this cause. When numerous, lice are a serious drain on vitality, 

 fattening is prevented by them, and hogs so affected are very much 

 more subject to disease. To eradicate lice, dip, spray, or rub hogs 

 with crude oil, crude-oil emulsion, or kerosene-oil emulsion every 

 10 days for three or four applications. 



Disinfecting a hog house. 



Mange: (a) This very troublesome affection with hogs is caused 

 by a mite or parasite that pricks the skin of the hog to get tissue 

 fluid. This injury produces a red spot which finally results in a 

 scale under which mites may be found, (b) The symptoms are itch- 

 ing followed by a loss of hair and thickening and cracking of the 

 skin, (c) Treat mange by applying lime sulphur or nicotine dip 

 once every 10 days for three dippings. Hogs should be washed thor- 

 oughly with soap, water, and brush before dipping, to remove the 

 scales. 



Hog cholera : (a) The real cause of hog cholera is a very small germ 

 found in the blood or urine. It may be said that anything which 

 tends to lower the health of the animal, such as improper feeding, 

 insanitary conditions of hog lots, damp or cold sleeping places, and. 



