Like, how many calories of corn does it take to make one calorie of beef?
Any sources would be nice.
This varies depending on whether the cattle are also fed some alfalfa, some urea. But it also depends on genetics of the animals in question.
We get more beef from a hectare of corn whole stock silage than from corn as grain, but we do not get more on a per calorie basis.
The extra calories in whole stock silage are used somewhat less efficiently than those in grain, but give more total calories of beef.
Next, the main purpose of feeding beef corn is to produce a higher protein food than the corn began with, so part of the objective is independent of calorie level efficiency.
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