256 The Feeding of Animals 



butter from cream, varies in composition from such 

 causes as the composition of the cream and the per- 

 fectness of the churning. The more fat is left in it 

 the more it is worth for feeding purposes. Its feeding 

 value is but little less than that of skim -milk. 



Whey solids are mostty sugar. In good cheese- 

 making practice, whey retains scarcely any of the 

 casein and fat of the milk. It therefore takes a place 

 in the ration quite different from that of skim -milk, 

 as it is essentially a carbohydrate food. 



The dairy offals are peculiarly valuable as food 

 for young animals and swine. It is safe to say that 

 for calves and pigs no other sufficiently inexpensive 

 materials can fully take their place in their relation 

 to health and vigor. 



Slaughter - house and other animal refuses. The 

 offals from slaughter - houses and from fish, which 

 have a somewhat limited use in feeding domestic ani- 

 mals, are meat scraps, meat meal, dried blood, and 

 dried and ground fish. The accompanying analyses 

 display their composition, which is subject to great 

 variations : 



Composition of slaughter-house and other refuses (per cent) 



Water Ash Protein Fat 



Animal meal, N. Y. station.. 2.2 38.7 37.5 13.2 

 Meat meal, German analysis.. 10.7 4.1 71.2 13.7 

 Fish scrap, German analysis. 13.9 31.3 48.4 6.4 

 Dried blood, Henry 8.5 4.7 84.4 25 



The meat and fish offals vary greatly according to 

 proportion of bone which they contain. The percen- 

 tage of protein is always large, nevertheless. Dried 



