THE FEEDS 359 



frequent scalding is taken there will be an accumulation of 

 solids which will putrify and are likely to cause such nervous 

 troubles as limberneck, so-called, and the like. 



The average amounts of the nutrients found in KJD pounds 

 of skim milk are 90.1 pounds of water, 0.7 pound of ash, 

 3.8 pounds of crude protein, 5.2 pounds of carbohydrates 

 and 0.2 pound of fat. The proportions of these which are 

 digested by chickens have not been determined. It contains 

 both of the vitamins, though not nearly so much of the fat 

 soluble as docs the whole milk. 



Milk {Whey). — Whey is low in protein content because of 

 the loss of the casein in the making of cheese. It is good for 

 moistening mashes or as a drink. Its sugar content furnishes 

 nourishment and its acidity aids digestion. Practically all 

 the water soluble of milk is found in the whey. 



Water.— This highly important part of all poultry rations 

 has been discussed as a nutrient (see page 301). It must 

 be further emphasized, that a suitable and constant supply 

 of clean, cool water is essential to the best feeding practice. 

 To provide water that is always clean and cool is a summer 

 problem that must be met by the feeder's ingenuity if he 

 is not so fortunate as to have running water available (see 

 Figure 17G). 



In the northern and central states a constantly available 

 supply of water during the winter also presents its problems. 

 The recognition of its importance, however, is bringing into 

 use water heaters of various styles so designed as to involve 

 slight fire hazard and heat the water sufficiently to prevent 

 its freezing in the coldest weather. 



