78 



w liat tlu' Oermans have found to be desirable for a cow 

 to eat. 



On Uie olher hand I lie eows getting- cotton seed nieal 

 in all cases consumed more protein than necessary. 



The nutritive ratio is the number of times that the 

 ratio of the amount of protein (taken as 1) to the total 

 amounts of carbohytlrates and fats, the fats having first 

 been multiplied by 2|. The nutritive ratio was narrow 

 (represented by a small number) when cotton seed meal 

 was fed, and wider (or less rich in nitrogen or protein) 

 w hen cotton seed was fed. 



Value ov cowpeas ix corn fields as pasturage. 



• 



For a period of 19 da^^s, October 7 to 25 inclusive, 

 11)00, three Jersey cows were grazed in a corn field from 

 which the ears had been pulled, the grazing consisting 

 principally of cowpeas, of what remained of the corn 

 blades, and of a little crab and crowfoot grasses. 



The corn was planted March 28 in rows five feet apart. 

 Half wav between the corn rows was a row of drilled 

 Wonderful cowpeas planted June 4, without fertilizer. 

 The yield of corn was about 25 bushels per acre. 



While the cows were grazing in the corn field on cow- 

 peas each received a daily allowance of 3 pounds of cot- 

 ton seed meal. 



From September 23 to October 6 each cow also con- 

 sumed 3 pounds of cotton seed meal per day. During 

 this earlier period of three weeks, they grazed 

 in a large pasture of bermuda, lespedeza, (Japan 

 clover, carpet grass, etc.) so that the yields 

 made on pea vines can be properly compared with 

 those made on ordinary pasturage. The following table 

 shows the amount of milk and butter afforded daily by 

 each cow : 



