SHEEP SCAB 135 



varies from two to four gallons, according to the number of 

 sheep dipped and the material used. Less dip is needed for 

 shorn than for unshorn sheep. 



It is a good rule to use any dip at about 100 degrees F. Dip- 

 ping should be repeated in 10 days, and in some cases it may 

 be necessary to give even a third dipping after a second inter- 

 val of 10 days. 



For thorough work the entire flock should be shorn, then 8 or 

 10 days later dipped and confined for another 8 to 10 days in 

 a place where there have been no scabby sheep for at least two 

 months. At the close of this period of 8 to 10 days, the flock 

 should be redipped and placed again where there is no danger 

 of infection. 



Dips. — Several of the patent dips give excellent results, but 

 these are usually more expensive than others and are objection- 

 able, inasmuch as we do not know their composition. The fol- 

 lowing are perhaps as good as any: 



Lime-and-sulphur dip. — This is cheap, safe, and very effective. 

 It has given good satisfaction when made and used according 

 to directions. Make this dip in the following proportions : ordi- 

 nary sulphur, 24 lbs. ; unslaked lime or hydrated lime — but not 

 airslaked — 8 lbs. ; water, 100 gallons. 



The lime and sulphur are placed in a large kettle or other 

 suitable container with enough water to slake the lime and form 

 a paste. After the lime is thoroughly slaked 30 gallons of 

 water is added and the mixture is boiled and stirred for 3 

 hours. Add water to make up to the original 30 gallons, and 

 allow the solution to settle overnight. The liquid should then 

 be so drawn off as to avoid stirring up the sediment. A spigot 

 placed about 4 inches from the bottom of the barrel or tank 

 works nicely. 



For use, add enough water to make a total of 100 gallons. 

 The ooze or sediment is not to be used on the animal body, but 

 makes a good disinfectant for fences, pens and other enclos- 

 ures. 



Lime and sulphur cannot be relied on to kill sheep ticks. 

 Tobacco and sulphur or coal-tar dips should be used when there 

 are both ticks and scab. 



Coal-tar dips. — Certain dips of this class are now approved by 

 the Federal Bureau of Animal Industry when used in official 

 strength and directions followed. 



