Because of its high starch content and lower crude fiber content, barley contains more energy per kg than oats, so you need to feed less of it.  The starch in barley has a different structure than in oats and is therefore slower to digest.  To improve digestion, it is often fed crushed or flaked.

 

Barley, like oats, has an unequal calcium-phosphorus ratio. With a large proportion in the ration, calcium should be supplemented with alfalfa, for example.

 

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