EXERCISE 44. COMPARATIVE MANURIAL VALUES OF FEEDS 



(Reference, Productive Feeding, Chapter XI, and Appendix Table V) 

 1. If a protein feed is needed to balance a ration, which one of the fol- 

 lowing feeds would be preferable, considering also manurial values: Wheat 

 bran at $24.50 a ton, dried distillers' grains at $29.75, cottonseed meal at 

 $35, linseed meal at $33, and tankage (60 per cent) at $50? 

 Arrange the feeds in order of 



(a) Decreasing manurial values, 



(b) Cost of digestible protein, 



(c) Cost of total digestible matter. 



Giving equal weight to (a) and (c), which would be the order of preference 

 (1) when dairy cows are fed, and (2) when pigs are fed? 



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