FIFTY-SECOND ANNUAL CONVENTION 43 



grains contain only two pounds of calcium oxide in a thou- 

 sand pounds, less than a one-half pound of lime in a ton 

 of corn. You would pretty nearly have to hunt for it with 

 a microscope. You can't blame a cow for having heart 

 trouble on a ration made up largely of corn, in producing 

 milk efficiency, because she will soon be up against a lack 

 of lime. 



The best way of furnishing lime is through an abund- 

 ant use of legume hay. As I shall emphasize this after- 

 noon, if a man has plenty of alfalfa hay, soy beans, or even 

 clover hay as far as we know he may get no benefit through 

 adding the additional lime to the ration of his cows. 



Now I believe it is a good thing again to give a good 

 cow the benefit of the doubt, and with a high producing 

 herd, so even with an abundance of legume hay I would 

 probably add a little lime to the ration, probably two or 

 three pounds of ground limestone to each two or three 

 pounds of the mixture. I cannot guarantee that the 

 cows would get any benefit from that. I do not know 

 enough about it yet. It wouldn't do them any harm, and 

 probably it might do them some good. Limestone or wood 

 ashes are cheap, so you don't need to worry about putting 

 a little of it in but fortunately for us most of the protein- 

 rich feeds are not only rich in protein but also rich in phos- 

 phorus. 



That is probably true of wheat bread, wheat meal, 

 cottonseed meal, linseed meal, peanuts and so*y beans, and 

 consequently peanut meal and soybean meal; and if the 

 concentrate or grain mixture that is being fed to dairy cows 

 contains one-fifth of these high-phosphorus, protein-rich 

 feeds, if there are twenty pounds in a one or anyone of 

 those feeds I have just mentioned, as far as I know there 

 will be no lack of phosphorus in the ration. 



That is an exceedingly important matter. You can 

 furnish lime by the use of ground limestone, wood ashes 

 or marl. Those furnishing phosphorus you have to go to 

 the higher priced supplements to get. I said phosphorus 

 is sometimes used as a ground rock phosphate. At the 

 present time we do not recommend the use of a ground 



