EIGHTEENTH ANNUAL YEAR BOOK — PART VII 



359 



did not eat it. Some feeds have inhibitors, you know, which keep 

 the animals from eating of them, even tho the feeds in themselves are 

 pretty good otherwise; some little thing will keep them away from 

 the feed much like a little latch on a barn door will keep prowlers out, 

 or the hairy covering of a cocoanut may discourage one and make him 

 believe that the inside is not so good as it really is, and so on. "We 

 should insist that the brood sows that get alfalfa in a rack should eat 

 at least a pound per head daily, if we want to be assured of good results. 

 Table III shows the coat character as affected by the ration. Meat 

 meal and oil meal make lustrous, heavy coats; corn alone tends to 

 produce coats of the unborn pigs that are scanty, ofttimes the pigs be- 

 ing hairless. Oil meal has been noted for many, many years as a coat 

 producer. These figures bear out that reputation. 



TABLE III— CHARACTER OF COAT. 



Results at Iowa Experiment Station, 1911, 1912, Animal Husbandry 



Section. 



Ration Fed tne Sows 



com only 



Corn plus 1-10 meat meal or tankage- 

 Corn plus 1-4 oil meal, old process-— 



That the size of bone is affected by the rations fed the sows is 

 certainly presented clearly in Table IV, giving the circumference of 

 the front and hind shins of the new-born piglets. Note that meat meal 

 is better than oil meal, but note clearly that both meat meal and lin- 

 seed meal are clearly superior to corn alone; in other words, these two 

 supplements added to corn make the corn ration superior. 



TABLE IV— CIRCUMFERENCE OP SHINS. 



Results at the Iowa Experiment Station, Animal Husbandry Section. 

 (Measurements in centimeters, equal to practically two- 

 fifths of an inch.) 



Ration Fed to Sows 



Com only -- 



Com plus meat meal 



Com plus linseed oil mieal 



4.63 

 5.05 

 4.92 



4.39 

 4.83 

 4.67 



Table V gives the rations, number in litter, and other character- 

 istics of the litter of an experiment we ran in 1913, 1914. 



