624 SCABIES — SCAB — MANGE. 



Towards the eighth day the crusts fall, the skin appears supple 

 and of a pink colour, and the wounds cicatrise. In animals which 

 have suffered for a long time recovery is much slower, and may 

 extend over from thirty to fifty days. The wool again grows soft 

 and bright, while the sheep rapidly regain their spirits and condi- 

 tion. The cicatrisation of the wounds is often accompanied by intense 

 itching, which must not be taken as a sign of the persistence of 

 the disease. It is well, however, to keep the animals under observation 

 at this period. 



Under any circumstances, six weeks or two months should always 

 be allowed to elapse before giving a second bath. Should a few spots 

 appear to be attacked secondarily, they may be moistened with a little 

 of one of the bath liquids. 



In Germany the creolin bath is generally employed : 



„ f Water . . . . . . 250 gallons or parts. 



For 100 sheep.. . . j creolin 6-5 



Each sheep is bathed a second time after an interval of one week, the 

 animal being immersed for three minutes in the bath and thoroughly 

 scrubbed with a brush. The efficacy of this method, however, is 

 less certain. 



In America, where the flocks are large and scabies is frequent, 

 sulphur baths are employed, the baths themselves being of great size. 

 The animals are forced to pass through them and remain there for 

 some minutes. 



The size and value of American, Australian, and New Zealand 

 flocks derband that the modes of treatment practised and the experi- 

 ence gained in these countries should receive something more than pass- 

 ing notice. We therefore purpose giving a short resume of some parts 

 of the very valuable monograph on sheep scab issued in 1897 by Dr. 

 Salmon and Mr. Stiles, for the American Bureau of Animal Industry. 



In selecting a dip the question of expense will naturally arise ; 

 next, the question as to whether or not scab actually exists in the 

 flock to be dipped. The facilities at hand, the set-back to the 

 sheep, and the length of the wool are also matters for considera- 

 tion, as well as the pastures into which the dipped sheep are to be 

 placed. 



Expense. — In estimating the expense one should consider not only 

 the actual outlay for the ingredients of the ooze, but the cost of 

 fuel and labour, the injury, if any, to the sheep, and the liability 

 of not curing the disease. It is much more economical to use an 

 expensive dip and cure scab, than it is to use a cheap dip and fail 

 to cure it. 



