384 FEEDS AND FEEDING 



Massachusetts Station 94 when 7 to 8 Ibs. of dry matter in oat feed was 

 substituted for an equal amount of dry matter in mixed hay, slightly 

 more milk was produced. We may conclude that while such oat feed 

 has a distinct feeding value, it is not worth appreciably more per ton 

 than mixed grass and clover hay. (224) 



Hydrolized sawdust, prepared by heating sawdust with dilute acid 

 under pressure, so that a part of the woody fiber is changed to sugar, has 

 been successfully used as one-fourth to one-third of the concentrate 

 mixture in trials by Morrison, Humphrey, and Hulce at the Wisconsin 

 Station. 948 When fed in these proportions and mixed with well-liked 

 concentrates, there was ,no difficulty in getting the cows to eat the 

 treated sawdust. In these trials 2 Ibs. of hydrolized sawdust was equal 

 in net energy value to 1 Ib. of ground barley or corn. At present prices 

 for farm grains there is little probability that such treated sawdust will 

 be of any importance as a live stock feed, except possibly in certain 

 districts where carbohydrate-rich feeds are unusually high in price. 



628. Cottonseed hulls. Cottonseed hulls contain a fair amount of di- 

 gestible carbohydrates, but they are very low in crude protein and are, 

 rather unpalatable to cows. Southern dairymen can supply roughage 

 for their herds more cheaply in the form of corn silage than by buying 

 cottonseed hulls. Silage is also more palatable and stimulates a larger 

 flow of milk. Tho experiments at the southern stations 95 have shown that 

 good corn stover is worth more per ton than cottonseed hulls, southern 

 dairymen often leave the corn stalks in the field and purchase the hulls 

 for roughage. (251) 



In trials at the Mississippi Station 96 Moore found that it took 100 Ibs. 

 of cottonseed hulls to equal 67 Ibs. of prime Johnson-grass hay. In a 

 trial by Soule at the Texas Station 97 cottonseed hulls were nearly equal 

 in feeding value to sorghum hay. 



V. SUCCULENT FEEDS 



Succulent feeds are of even more importance in the feeding of dairy 

 cows than of the other farm animals. In fact succulent feeds are well 

 nigh essential to the economical production of milk in most dairy dis- 

 tricts. Due to their cooling, slightly laxative action, such feeds aid 

 greatly in keeping the digestive tracts of these hard-working animals 

 in good condition. Furthermore, succulent feeds are usually highly 

 palatable and thus they whet the appetite, so that larger amounts of 

 roughage are consumed than if only hay and other dry forage were fed. 

 As a result, the cows have more nutrients available for milk production, 

 after the maintenance needs of their bodies have been met. 



629. Corn silage. Thruout the chief dairy sections of the United 

 States corn silage is the cheapest succulent feed available, as well as 



"Mass. Bui. 200. ^Miss. Rpt. 1903. 



M aWis. Buls. 323, pp. 5-7; 339, pp. 132-3. 97 Texas Bui. 47. 



*S. C. Bui. 66; N. C. Bui. 199. 



