Concept:Feed conversion efficiency is measured by comparing the amount of feed consumed with the weight gained by each animal.
The most efficient animal gives the highest weight gain for the least amount of feed eaten.
Explanation:Feed conversion ratio is usually written as:
Feed Conversion Ratio=Weight GainFeed ConsumedA lower value of this ratio means the animal converts feed into body weight more efficiently.
To choose the best animal among P, Q, R, and S, the actual feed consumption and weight gain data for each animal must be available.
Without the data table, the feed conversion ratio for each animal cannot be calculated.
Therefore, no valid comparison can be made among P, Q, R, and S.
Answer:Cannot be determined from the given information.