FEEDING PRACTICES AND APPLIANCES 



415 



it with droppings (see Fig. 189). Earthenware is probably 

 best for keeping water cool in summer, but it will not stand 



FiQ. 187 



A home-made hopper to be used for free-range chicks. It can be divided 

 so that one side holds a mash and the other coarsely cracked grains. 

 (Courtesy of Reliable Poultry Journal.) 



freezing. Galvanized iron pans with flaring sides, as shown 

 in Fig. 189, withstand freezing well, and are among the most 

 used watering devices for mature stock. Galvanized iron, 

 however, is attacked by potassium permanganate, which is 



A chick feeding-trough. (Courtesy of A. G. Philips.) 



frequently put in the drinking-water to prevent the spread 

 of disease by means of the water. In the course of time 

 the permanganate will eat holes in it if used to any extent. 



