FEEDS FOR SWINE 367 



Tankage; meat meal. — The value of tankage or meat meal as a 

 supplement to corn and other carbonaceous concentrates has been 

 demonstrated in trials at many stations and by experience on many 

 farms. Rich in protein which is well-balanced in composition, and 

 likewise high in calcium and phosphorus, tankage is excelled only by 

 skim milk and buttermilk in producing thrifty growth and large gains. 

 Since tankage or meat meal for stock feeding is thoroly cooked under 

 pressure at a high temperature, there is no danger of spreading disease 

 by its use. 



Trials at various stations show that when highgrade tankage, carry- 

 ing 55 per ct. of protein or over, is fed as the sole supplement to corn 

 to pigs over 100 lbs. in weight, not over 9 to 10 per ct. is needed to 

 balance the ration. With mature pigs even less tankage need be fed. 

 With young pigs soon after weaning it is advisable to feed as high as 

 20 per ct. of tankage, or better, 9 to 10 per ct. of tankage and sufficient 

 linseed meal, wheat middlings, etc., to provide the proper amount of 

 protein for animals of this age. Where a lower grade of tankage is 

 fed, the amount supplied should be correspondingly increased. For 

 pigs fed corn on such protein-rich pasture as alfalfa, clover, soybean, 

 cowpea, or rape, 5 per ct. of high grade tankage is usually sufficient 

 to balance the ration. When pigs are following steers being fattened 

 chiefly on corn, it will pay to feed the pigs one-fourth to one-third 

 pound of tankage per head daily. 



Wheat by-products. — Wheat middlings, or shorts, are one of the 

 most popular nitrogenous supplements for pigs. They are rich in pro- 

 tein and phosphorus, but are relatively low in calcium. Hence, when 

 middlings are used as the only supplement to corn for pigs in dry 

 lots, it is important to supply additional calcium in the form of ground 

 limestone, slaked lime, etc. As middlings are not very high in pro- 

 tein, a relatively large amount must be fed to balance the ration if 

 they are the only supplement to corn. For example, pigs under 100 

 lbs. in weight should receive 2 lbs. of middlings or a trifle more to 

 each pound of corn, while those weighing 150 lbs. will need but 1 lb. 

 of middlings per pound of corn. Pigs fed corn and tankage will 

 usually make slightly larger gains than those fed corn and middlings, 

 but a combination of the three feeds excels even corn and tankage alone 

 in the rate of gains made. 



Red dog ft our and flour wheat middlings are worth somewhat more 

 than standard middlings, as they contain more protein and also over 

 10 per ct. more total digestible nutrients. Red dog flour is especially 

 useful for quite young pigs, which need a highly digestible, palatable 

 feed containing little fiber. 



Wheat bran is too bulky to be fed in large amounts to fattening 



