40 ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



that were fed barley and linseed meal gained only about a 

 pound a day. On the other hand, pigs which were fed 

 barley and whey gained over two and one-half pounds a 

 day. These were well-grown feeder pigs, and, therefore, 

 were capable of making large gains under favorable con- 

 ditions. This is an exceedingly interesting result, because 

 whey is not very rich in protein, but yet the pigs produced 

 remarkably efficient results. 



As you of course know, most of the protein in the milk 

 goes into the cheese, leaving only eight-tenths of one pound 

 of protein in every 100 pounds of whey. Yet it so happens 

 that this small amount of protein is of the very kind that is 

 necessary to supplement barley protein. Therefore, the 

 combinatoin of barley and whey makes an exceedingly good 

 ration for pigs. 



Very young pigs need a larger amount of protein than 

 is furnished by barley and whey; therefore they should be 

 fed some protein-rich feed in addition. On the other hand, 

 for well-grown pigs weighing 150 pounds, barley and whey 

 alone make an efficient ration. 



Quality af Proteins for Dairy Cows 



In feeding dairy cattle and also beef cattle, the quality 

 of the protein is not of so much importance, providing you 

 have such good roughages as legume hay and corn silage. 

 This is because the proteins in legume hay and in corn for- 

 age are of quite good quality. Therefore, if dairy cows are 

 fed alfalfa or clover hay, with corn silage and farm grains, 

 there is no necessity of worrying about the quality of the 

 proteins in the ration. You can buy whichever protein- 

 rich feed is the cheapest for you to use. 



The high quality of the protein in milk is one of the 

 reasons why it is such a good food for the human family. 

 Milk is not only rich in protein, but the protein is of the 

 very sort that supplements the deficiencies of the proteins 

 in the common grains. Therefore, it is important that chil-* 

 dren receive an ample amount of it. 



