CONCENTRATED FEEDS 



311 



Tankage or meat meal is a product of the beef packing 

 house. It is made from inferior pieces of meat and the trim- 

 mings, and from diseased carcasses. This meat is dried, and 

 sterilized in air-tight tanks, and is then ground to a meal. 

 It is very rich in protein, containing usually from 50 to 60 

 per cent, and 11 or 12 per cent fat. It is especially relished 

 by hogs, and since 1900 has been much used in the West 

 along with corn to balance up the ration. A mixture of one 

 part tankage and 6 to 10 of corn gives excellent results in 

 hog feeding. While this feed is high-priced, it is no doubt one 



Fig. 160. Two lots of hogs fed at the Ohio Experiment Station. The 

 smaller were fed corn alone in dry lot, and the others corn and tankage. Photo- 

 graph by courtesy Ohio Agricultural Experiment Station. 



of the most important additions to the rations of swine. The 

 glossy coat of hair and hearty appetite of the tankage-fed 

 hog are evidences of the value of this feed. 



Milk is not strictly a concentrated food, but will be 

 briefly referred to here. As drawn from the cow it contains 

 about 87J^ per cent water and 12J/2 per cent solid material. 

 Of the solids, about 3J/2 to 4 per cent is usually fat and 4 to 5 

 per cent milk sugar. Milk is a most important food for all 

 young animals during the earlier stages of growth. If new 

 milk is fed, the young animals lay on flesh easily, and may 



