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It is in a total mixed ration (TMR) and when limit-fed; it is also good since commercial dairy cows are selectively bred so that their energy requirements often exceed the best quality forage they can be fed. Corn must be supplied regularly as a supplement to meet such high energy needs from a lactating dairy cow. However, even the small amount of corn they are fed contribute to subacute acidosis simply because the cows eat a lot and they often pick through their ration to get at the good stuff: the best-tasting, most palatable stuff, which is often the grain portion of their TMR.

Generally, though, cows aren't meant to eat corn because they're not naturally suited to consume such grains on a regular basis. However, when you get dairy cows with really high energy needs and are not feed efficient when on pasture due to their genetics, corn is a necessary evil to use to meet their energy requirements.

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11y ago

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