234 ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



the following-named quantities of grain with abundant pasture 

 for varying production : 



Jersey cow producing — 



20 pounds of milk daily 3 pounds of grain 



25 pounds of milk daily 4 pounds of graii? 



30 pounds of milk daily 6 pounds of grain 



35 pounds of milk daily 8 pounds of grain 



40 pounds of milk daily 10 pounds of grain 



Holstein-Friesian or Arshyre cow producing 



25 pounds of milk daily 3 pounds of grain 



30 pounds of milk daily 5 pounds of grain 



35 pounds of milk daily 7 pounds of grain 



40 pounds of milk daily 9 pounds of grain 



50 pounds of milk daily 10 pounds of grain 



While this is, of course, an arbitrary rule and variations 

 should be made to suit different conditions and individual cows, 

 it is in accord with good feeding practice and probably is as good 

 a rule of its kind as has been formulted. 



For cows of medium production it is usually more economi- 

 cal to feed silage or some green crop rather than grain for sup- 

 plementing short pasturage. In supplementing pasture with 

 grain it should be remembered that the percentage of protein in 

 the grain ration need not be the same as for winter feeding. 

 Good pasture is an approximately balanced ration. The grain 

 ration to be fed with pasture grass should, therefore, have ap- 

 proximately the same proportion of protein to other nutrients. 

 In the case of extra heavy producers the percentage of protein in 

 the grain mixture should be somewhat greater. 



The following-named mixtures are suggested for supple- 

 menting pasture without other roughage : 



Mixture No. 1 — Mixture No. 3— 



Ground oats 100 pounds Corn-and-cob meal . . 250 pounds 



Wheat bran 100 pounds Cottonseed meal .... 100 pounds 



Corn meal 50 pounds Per cent digestible protein, 15.5 



Per cent digestible protein, 10.3. Mixture No. 4 — 



Mixture No. 2 — Wheat bran 100 pounds 



Wheat bran 100 pounds Gluten feed 50 pounds 



Corn meal 100 pounds Corn meal 50 pounds 



Cottonseed meal 25 pounds Per cent digestible protein, 13.6 



Per cent digestible protein, 12.7 



