368 FEEDS AND FEEDING 



rate the value of a good grade of wheat mixed feed at 5 to 10 per ct. more 

 than that of bran. 



590. Corn gluten feed. This by-product contains about twice as much 

 digestible crude protein as wheat bran, in addition to furnishing con- 

 siderably more total digestible nutrients. Also it is quite well liked by 

 dairy cows when fed as part of a suitable concentrate mixture. It has 

 therefore become one of the common dairy feeds. Tho it is slightly 

 higher in total digestible nutrients than linseed meal or cottonseed 

 meal, it furnishes only about two-thirds as much digestible crude protein. 

 Therefore a larger amount is needed to furnish a given amount of pro- 

 tein, and consequently gluten feed is usually worth somewhat less per 

 ton than those concentrates which are richer in protein. (210) 



In a trial by McCandlish at the Iowa Station 21 cows were fed either 

 3.0 Ibs. gluten feed or the same weight of linseed meal, along with al- 

 falfa hay, corn silage, and 6.0 Ibs. per head daily of a concentrate mix- 

 ture of 2 parts cracked corn, 2 parts ground oats, and 1 part wheat bran. 

 When added to this ration, which already contained a fair amount of 

 protein, 2 per ct. more milk and 4 per ct. more fat were produced with 

 gluten feed than with linseed meal. Had gluten feed been compared with 

 linseed meal in a ration otherwise low in protein, it would probably have 

 proven of lower value than linseed meal, because it contains much less 

 protein. 



Gluten feed and linseed meal were compared as supplements to a 

 ration of ground corn, corn silage, and alfalfa or soybean hay in a 

 trial by Caldwell at the Indiana Station, 22 the amounts of gluten feed 

 and linseed meal being adjusted so as to furnish the same quantity of 

 protein. When thus fed, there was no appreciable difference in the pro- 

 duction on these supplements. 



591. Gluten meal; corn bran. But little gluten meal is now found on 

 the market, as most of it is combined with corn bran to form gluten feed. 

 (211) Gluten meal contains as much digestible crude protein as lin- 

 seed meal and is satisfactory for dairy cows, but it should be fed in 

 limited amounts, as it is a rich, heavy feed. 



Corn bran was found by Lindsey at the Massachusetts Station 23 to be 

 equal to wheat bran when fed in a ration containing ample protein. It 

 should be remembered, however, that corn bran is much lower in protein 

 than is wheat bran. (214) 



592. Corn germ meal Corn germ meal, which is lower in digestible 

 crude protein than gluten feed but quite high in fat, is a satisfactory feed 

 for dairy cows, tho most commonly fed to swine. (212) In a trial at the 

 Vermont Station 24 Hills found a mixture of equal parts corn germ meal 

 and wheat bran superior to a mixture of 1 part cottonseed meal, 1 part 

 linseed meal, and 2 parts wheat bran. Corn germ meal may become 

 rancid when stored any great length of time. 



information to the authors. ^Mass. Bui. 186. 



. Bui. 208. *Vt. Rpt. 1901. 



