SUPPLEMENTARY FEEDS' WITH CORN 163 



been in progress 81 days. It is stated that there is a risk in 

 feeding cottonseed meal. It is claimed, however, that cottonseed 

 meal can be fed with safety, even in large amounts, for periods 

 of not more than 25 days. When no deaths occurred, cotton- 

 seed meal proved equal to tankage as a supplementary feed 

 with corn.* 



Summary. Many other instances of the effect of supplementary feeds 

 with corn might be given if space permitted. Sufficient tests have been 

 quoted to establish a few important points which may be enumerated as 

 follows : 



1. Corn alone falls far short of being an ideal ration for hogs. It is 

 especially injurious to young pigs, resulting in lack of growth, weakness 

 of bone, and expensive gains. 



2. When wisely combined with a feed relatively rich in protein, corn 

 makes one of the best hog feeds obtainable. 



3. Pasture, either grass or clover, makes a good supplement to corn, 

 clover and alfalfa being especially desirable. 



4. Very high-priced protein feeds, such as tankage and meat meal, 

 must be used in small proportions, and give best relative returns when used 

 in dry-lot feeding. 



5. When hogs are on pasture, a comparatively cheap feed, such as 

 wheat middlings, will supplement corn to better advantage than expensive 

 feeds like tankage and meat meal. 



6. Where soy-beans can be grown to advantage, they constitute a 

 valuable feed to use as a supplement to corn. 



REVIEW. 



1. What is the need of supplementary feed to be used with corn? 



2. What is found to be the effect of blood meal and pea meal? Why? 



3. What is the special need of such feed as bone meal and hard-wood 

 ashes as a supplement to corn? 



4. Give the effect of using each feed discussed in this chapter along 

 with corn. 



* There is evidently considerable risk in feeding cottonseed meal to 

 hogs, though the exact danger point has not been determined. It is not 

 profitable to run much risk in the use of this feed, since the difference in 

 cost between cottonseed meal and other feeds that are considered safer 

 is now very small. 



The North Carolina Station has shown that givfng iron sulfate in the 

 drinking water, 1 pound to 50 gallons of water, or slop, will overcome the 

 poisonous effects of cottonseed meal for pigs. See " Productive Feeding of 

 Farm Animals," by Woll. 



