There are 5 million kcal of energy stored in grain that could be fed either to beef cattle or humans.A farmer chooses to feed the grain to the cattle to fatten them up for human consumption.How many kcal would now be available as beef to feed the humans?

Question

Quizplus · Accepted Answer

When the grain is fed to the cattle, some of the energy is lost as the cattle go about their daily activities. On average, only about 10% of the energy in the grain is converted into beef that can be consumed by humans. Therefore, out of the 5 million kcal of energy in the grain, only 500,000 kcal would be available as beef to feed the humans.

There Are 5 Million Kcal of Energy Stored in Grain