SUDAN GRASS HAY 



487 



This shows that the nutrients in Sudan grass hay are all fairly 

 easily digested. The digestion eoeii'icients range from 47.4 per 

 cent in the case of the protein to 70.6 per cent in the case of the 

 crude fiber, while that for the total dry matter is 64.9 per cent. 



A comparison of the work done at this Station with that done 

 at the Maryland Station shows that the coefficients of digestibil- 

 ity obtained agree fairly closely for most of the nutrients pres- 

 ent in Sudan grass hay. 



TABLE XIII. 



COMPARISON OF DIGESTION TRIALS WITH SUDAN GRASS 



HAY. 



The Iowa results are in all cases higher than those obtained at 

 the Maryland Station but only in the case of the crude protein 

 and ether extract is there a very marked difference. This may 

 perhaps be due to differences in the conditions under which the 

 hays were grown, though they are very similar in composition, 

 or more probably to variations in the digestive powers of the ani- 

 mals used. Whatever the factor or factors are that bring aJbout 

 this difference they apparently are selective in their action. 



TABLE XIV. 



SUMMARY OF WORK ON SUDAN GRASS HAY 

 NUTRIENTS IN 100 POUNDS OF HAY. 



Dry Matter 



Protein 



Nitrogen-free extract 



Crude Fiber 



Ether Extract 



^Bul. 194 ; Md. Sta. 



