26 Bulletin 81 



10 tons linseed or gluten meal, or by 14 tons gluten feed, costing respectively 

 $469, $192, $260, $240 and $280. The amount on hand is $287.50. Clearly 

 the bran purchase should not be large, looking at the matter purely from 

 the side of dollars and cents. Yet the safety of bran already referred to, 

 its good effect in lightening the grain ration is worth a good deal. Let us 

 figure on 3 tons bran, 2\ tons cottonseed, 1 ton linseed, 3 tons gluten meal. 

 These will calculate as follows : 



Digestible protein Pounds of 



percentage digestible protein Cost 



6,000 pounds bran 12. 720 $51 



5,000 " cottonseed meal 40. 2,000 60 



2,000 " linseed meal 32.5 650 26 



6,000 " gluten meal 32.1 1,930 72 



5,300 $209 



There is still a shortage of 1,200 pounds of protein, but there are 

 nearly $80 left. Let us add more bran and linseed meal — for safety and 

 health — and more cottonseed meal. 



Digestible protein Pounds of 



percentage digestible protein Cost 



1,000 pounds bran 12. 120 $8.50 



1,000 " cottonseed meal 40. 400 12.00 



2,000 " linseedmeal 32.5 650 26.00 



1,170 $ 46.50 



Former total 5,300 $209.00 



6,470 $255.50 



Left on hand $ 32.00 



The lacking protein is bought and the money is not all spent. A ration 

 of 1\ pounds clover hay, 30 pounds silage and 5| pounds of these bypro- 

 ducts fed daily will supply the needed protein. It should be remarked 

 however, that were any hay but clover hay fed this would not be the case. 



Will this ration furnish the dry matter and carbohydrates needed ? 



Dry Digestible Digestible 



matter protein carbohydrates 



7,000 pounds bran 6,200 lbs. 840 lbs. 3,200 lbs. 



6,000 " cottonseed meal 5,500 " 2,400 " 2,400 " 



4,000 " linseed meal 3,600 " 1,300 " 1,700 " 



6,000 " gluten meal 5,300 " 1,920 " 2,800 " 



Total 20,600 " 0,4(50 " 10,100 " 



Standard requires in addition to the 

 nutrients on hand in the hay and 

 silage 59,000 lbs. 6,500 lbs. 22,600 lbs. 



