Show proteins in soy beans the live stock feeding value of 0 soy beans Is determined to a large extent by the type of protein which they contain and ad varies substantially for different varieties chemists of the united states department of agriculture find preliminary tests showed for example that tile the variety of soy bean has a protein which makes it valuable as a supplement for such reeds feeds as corn and oats to supplement such leeds feeds ag cowpeas cow peas lentils and peas the and manchu soy beans cont contaldi contal alij ni the best protein |