DESCRIPTION OF FEEDING-STUFFS 223 



the carcass meal. The composition of the material 

 varies considerably, owing to the varying pro- 

 portions of bones and heads that it contains, and 

 there is always present, as in carcass meal, a 

 large quantity of phosphate of lime. Fish meal 

 is used in the same way as meat meal, particularly 

 for feeding pigs and poultry. It is said to have 

 no effect upon the milk, but a meal which con- 

 tained a lot of oil would certainly not be as 

 suitable as one free from oil. The flesh and bacon 

 of pigs tend to become oily where such a meal 

 is used. 



Blood meal. By drying and grinding blood from 

 the slaughter-houses, a good food material which 

 is readily eaten by all animals is obtained, and it 

 can be used in a similar manner to meat meal. It 

 is also used as an addition to feeding loaves and 

 biscuits, also for mixing with the poorer molasses 

 feeds. 



Phosphate of lime for feeding purposes is a 

 material which is known under several names, and 

 is a by-product in the manufacture of glue from 

 bones. In order to separate the glue-yielding 

 substances from the mineral material the bones 

 after cleaning are broken up and treated with 

 hydrochloric acid, which brings the phosphate of 

 lime into solution along with lime and phosphoric 

 acid. By the addition of milk of lime to the solution, 

 a white powder which when dry contains on an 



