286 IOWA DEPARTMENT OF AGRICULTURE, 



There should be a minimum of waste. The hog requires less feed for 

 a given amount of grain, and makes larger gains in a given time when 

 a variety is given than when corn alone is fed. He will probably eat 

 more in a day but other things being equal the heavy feeders are 

 always the economical ones. 



The effect of varied rations on the carcass will increase in impor- 

 tance as competition becomes keener and production more expensive. 

 There is not yet the attention paid to this point in this country that 

 there is in other parts of the world, but there is little doubt that even- 

 tually the subject will receive a great deal more attention. 



In the countries where the effect of feed on the quality of the 

 meat produced has been given the greatest amount of study, corn is 

 regarded as injurious feed. In Denmark and Canada, packers have 

 found that the more it is fed the greater is the tendency for the bacon 

 to be soft. The markets of those countries demand a firm bacon that 

 does not carry more than a certain amount of fat. Investigators have 

 found that this softness in corn-fed pork is due to the amount of 

 olein present, a fat which is fluid at ordinary temperatures. Olein is 

 found in large amounts in corn and when corn is fed this fat is found 

 in the fat of the pork. When feeds are combined with corn, whose 

 olein content is low and whose content of solid fats is relatively high, 

 the pork produced is much finer. Some authorities assert that corn 

 should not be fed at all if the finest quality of pork is to be produced, 

 but Canadian investigators have recently shown that when fed with 

 skim milk, corn will produce as firm pork as other grains, especially 

 if a garin which produces firm pork is fed in addiiton. 



Otner topics might be taken up which have a bearing on the rela- 

 tion of the corn crop to the hog industry and the best means of utiliz- 

 ing it. The effect of feed on the carcass and the use of roots, are 

 among those subjects whose discussion could be handled appropriately, 

 but this would occupy too great an amount of your time. There is 

 little doubt that the time is rapidly aproaching when the greatest 

 possible economy will be necessary in feeding. As corn is the great 

 cereal crop of the country, and as it will in all probability continue 

 to be the basis of fattening rations, feeders may well study carefully 

 the best means of feeding it economically and to produce the highest 

 quality of pork. 



In the discussion of the subject of Mr. Wilson's paper Mr. 



Turner said : 



"I would like to ask if any of e breeders here have ever usel 

 whey in their feeding. When I was a boy I lived in a dairying country 

 where every farmer made cheese and every farmer raised a few hogs 

 and fed very little of anything but whey. Since farming for myself 

 1 have had no opportunity to try this but I know that a good many 

 men think whey not worth any more than water and I would like to 

 hear the experience of any one in the audience who has had experience 



