Answer: There is 400 grams of medication that should the feed company ad for each ton of food they produce.
Step-by-step explanation:
Since we have given that
Quantity of medication each country need a day = 300 mg
Number of pounds per day consumes by each cow = 15 pounds
So, it becomes

As we know that
1 g = 1000 mg
So, 20 mg = 
Total number of pounds = 2000 pounds
So, number of grams of medication that should the feed company ad for each ton of food they produce is given by

Hence, there is 400 grams of medication that should the feed company ad for each ton of food they produce.