Management and Feeding in Winter 53 



sows during the winter. For the amount of dry matter 

 carried, skim-milk occupies a position next to the packing- 

 house products in its content of protein. When avail- 

 able and fed with judgment, pasteurized skim-milk is 

 one of the cheapest amd most desirable supplements. 

 Buttermilk, when not diluted, is practically identical 

 with skim-milk in feeding value. Whey is a carbohydrate 

 feed, very thin, and of little value as a means of balancing 

 the grains. Wheat middlings, shorts, and bran are 

 standard hog-feeds and extensively used by most feeders. 

 Although containing, on the average, no more than one- 

 fourth as much protein as high-grade tankage, or one- 

 half as much as linseed-oil meal, they are valuable as a 

 part of the grain ration when their price does not exceed 

 their value. 



The value of succvlence. 



When available, green crops and roots constitute a 

 desirable element in the ration of the brood sows during 

 the winter. When supplied as additions to the regular 

 fare, they furnish, with some food, the property of suc- 

 culence conducive to the maintenance of breeding thrift 

 and a healthful condition of the digestive system. In 

 the South green crops may be depended on for the main 

 support of the brood sows during the first part of the 

 winter. In Canada and the northern states, roots are 

 frequently used as a large part of the daily ration, fed 

 sliced, pulped, or in the whole condition. In Denmark, 

 England, Scotland, and Ireland, roots in some form are 

 considered as practically an essential part of the ration 

 for pregnant sows. 



In the corn-belt and similar latitudes, as much use 

 should be made of green feeds like fall-sown rye, blue- 



