MANGELS 283 



Average Composition op Mangels 



One ton An avp .™«° 

 stains JEEJJ 



Percent Lbs. Lb8. 



Water 90. DO ... ... 



Dry matter 9.10 182 3,040 



Ether extract 0.20 4 80 



Crude fiber 90 18 360 



Protein 1.40 28 500 



Ash 1.10 22 440 



Nitrogen-free extract . . 5.50 110 2,200 



A recent Cornell bulletin (No. 243) quotes the 

 following experiments on the value of mangels for 

 milk: "Rather extensive Danish experiments indi- 

 cate that a pound of dry matter in roots is about 

 equal to one pound of the cereal grains, or to 

 three-fourths of a pound of cotton-seed meal, when 

 fed to milch cows. In these trials no silage was 

 fed, the basal ration in each case consisting of six 

 and one -half pounds of hay and ten pounds of 

 straw per cow. The experiment was so conducted 

 as to eliminate, apparently, the factor of succu- 

 lence, as shown by the following table of average 

 of six experiments including about lf)0 cows dur- 

 ing several months. Basal ration six and one-half 

 pounds hay, ten pounds straw: 



Cereal Cotton- Dry matter Nutritive Daily 



J.II,* see <* in r<».»t " nti ' yield 



* railis meal mangels ratl ° of milk 



Lbs. Ll>s. Lbs. Ll>s, 



Lot A . . . 7 1.5 4.5 1:8-9 22.4 



Lot B . . . 4 4.5 4.5 1:5-5.5 23.7 



LotC . . . 4 1.5 7.5 1:8-9 22.5 



LotD . . . 1 4.5 7.5 1:5-5.5 24.2 



