298 FEEDING FARM ANIMALS 



careful discrimination as to the amount that shall be fed. It 

 is used chiefly as a source of protein in feeding swine, more 

 especially when the other food consists mainly of corn. For 

 such feeding it has been found decidedly profitable even 

 when the price of tankage is 30 to 40 per cent greater than 

 that of corn. Tankage must be fed with some care as it 

 is a highly concentrated food. Usually it is not fed so as to 

 make more than 10 per cent of the ration. When feeding 

 tankage it should be carefully mixed with the food, thus se- 

 curing an even distribution. It must be kept dry or putre- 

 faction will set in, which makes it offensive to handle and 

 harmful to the stock, and it should not be allowed to soak 

 very long before it is fed. 



Dried blood is simply blood from slaughtered animals 

 from which the water or liquid has been removed. In the 

 process of drying enough heat is applied to kill any disease 

 germs that may be present. Formerly it was used chiefly 

 for fertilizing, but now it is more commonly used in feeding 

 calves and swine. As shown in the table it is exceedingly 

 rich in protein and the relative digestibility is high. It has 

 been found highly useful in feeding calves. To some extent 

 it is thought to be a corrective of scours. It may be fed in 

 the milk or meal, beginning with say a teaspoonful and 

 gradually increasing with the needs of the animals. It has 

 also been fed to lambs with profit, the blood to some extent 

 taking the place of milk. Its highest use probably is found 

 in feeding swine, when fed in conjunction with carbo- 

 naceous foods as corn. Swine at three months may be 

 given say one tablespoonful daily, younger animals being 

 given a proportionately less quantity. 



Dried flesh meal and meat scrap are more or less anal- 

 ogous in their composition. The former, properly speak- 

 ing, is composed of the ground flesh of animals after the 

 melted fat and moisture have been removed. The latter 

 consists of the better grades of slaughter-house waste, 

 somewhat similarly prepared. The preparation of flesh meal 



