84 POULTRY DISEASES 



the feet into feed and water troughs, or are picked 

 up from the ground with the feedstuff. Birds 

 should be fed out of troughs frequently disinfected 

 with a live per cent solution of carbolic acid, and 

 the water they drink should be similarly guarded. 

 Sick birds should be immediately removed from 

 the flock and the dead ones cremated. The hen- 

 house and nests should be cleaned thoroughly 

 each day and sprayed with whitewash to which 

 sufficient crude carbolic acid has been added to 

 make it five per cent of the whole, or creso, zeno- 

 leum or creolin should be used, of the same 

 strength. 



• A type of spray pump convenient for applying 

 this whitewash is shown in Fig. 9. The hen- 

 house may also be disinfected with formaldehyde, 

 as follows: Close tightly all doors, windows, 

 cracks and other openings, and for each 1,000 

 square feet of space in the building, use twenty 

 ounces formalin (forty per cent formaldehyde) 

 and sixteen ounces permanganate of potash. Place 

 these two materials in a vessel and place in the 

 middle of the room and leave for several hours. 

 The yard should be cleaned every day. If the 

 yard be small it may be disinfected by covering 

 it with straw and burning the straw. 



For the birds intestinal antiseptics are indi- 

 cated; the sulphocarbolates compound* has given 

 us by far the best results. Other intestinal anti- 

 septics are hydrochloric acid, one teaspoonful to 

 each quart of water, one per cent of copperas and 

 potassium permanganate. 



The following is an account of three of the tests which the 

 author made of the 30-grain sulphocarbolates compound tab- 

 lets. 



"One flock consisted of sixty birds. Several were sick at 



♦Manufactured by the Abbott Alkaloidal Co., Chicago. 



