Aug., 1922] inspection of feeding stuffs 11 



feed. The Dairy department of the New Hampshire 

 college recommend for use with a high protein roughage a 

 feed containing 15 per cent, crude digestible protein, for use 

 with a medium protein roughage a feed containing 17 per 

 cent, crude digestible protein, and for use with a low protein 

 roughage a feed containing 19 per cent, crude digestible 

 protein. The analysis of a feeding-stuff shows the crude 

 protein of which a portion is not digestible. While it is 

 impossible to give an accurate figure for the digestibility of 

 ready mixed feeds it will be approximate to assume that 

 from 80 to 85 per cent, of the crude protein is digestible. 

 On such a basis for use with a high protein roughage a 

 ready mixed dairy feed should contain at least 17.5 per cent, 

 protein with a medium protein roughage at least 20.00 per 

 cent, protein and with a low protein roughage at least 22,00 

 per cent, protein. 



SOME SUGGESTIONS IN PURCHASING FEEDS. 



1. Compare the cost of feeds with their analysis even 

 within the same class and buy the feeds which offer the 

 greatest value for the dollar. 



2. Beware of misleading brand names indicating unusual 

 feeding value. Let the analysis rather than the brand 

 name be your guide. 



3. If you grow legumes or high protein crops for rough- 

 age you will need to buy less of the expensive protein feeds. 



4. A good feed is high in protein and fat or carbohydrates 

 and low in crude fiber. 



5. A poor feed is low in protein and fat and high in crude 

 fiber. 



6. If you buy a ready mixed feed be sure that it is of the 

 proper analysis to meet your needs. 



Acknowledgements are due Mr. J. A. Gallagher, who 

 assisted in making the protein determinations. 



