SUDAN GRASS HAY 489 



SUMMARY. 



1. The dry ma^tter of Sudan grass changes slightly in compo- 

 sition from the time of heading until the crop is ripe. 



2. The content of fat and protein increases in the early stages 

 of ripening and decreases later while the changes in the nitro- 

 gen-free-extract and ash content are in the opposite direction. 



3. Either as a green feed or as hay, Sudan grass is very pal- 

 ata'ble. 



4. Sudan grass hay has a comparatively high apparent di- 

 gestibility. 



5. Sudan grass hay supplies energy to cattle much more ef- 

 ficiently than it does protein. 



BIBLIOGRAPHY. 



1. C. V. Piper, Growing Hay in tlie South for Market: Farmers' 



Bulletin 677, United States Department of Agriculture, 1915. 



2. C. G. Williams, Sudan Grass: Ohio Agricultural Experiment 



Station Monthly Bulletin, Vol I, No. 3, 1916. 



3. G. E. Thompson, Sudan Grass in Kansas: Kansas Agricultural 



Experiment Station, Bulletin 212, 1916. 



4. N. Sclunitz, Sudan Grass: Maryland Agricultural Experiment 



Station, Bulletin 194, 1916. 



5. C, V. Piper, Sudan Grass, a New Drought-Resistant Hay Plant: 



Bureau of Plant Industry, United States Department of Agri- 

 culture, Circular 125, 1913. 



6. B. Yoiuigblootl and A. B. Conner, Sudan Grass: Texas Agricul- 



tural Experiment Station, Bulletin 172, 1915. 

 7 R. E. Karper, Sudan Grass: Oklahoma Agricultural Experiment 

 Station, Bulletin 103, 1915. 



8. W. A. Henry and F. B. Morrison, Feeds and Feeding, 1915. 



9. H. P. xlrmsby and F. S. Putney, Net Energy Values of American 



Feeding Stuffs: Pennsylvania Agricultural Experiment Sta- 

 tion, B'ulletin 142, 1916. 



Agricultural Experiment Station, 

 Iowa State College. 



