The directions on a medicine bottle say to give 4 ml per 100 lbs body weight. How much would you give to a 150 lb ewe?

To determine the correct dosage for a 150 lb ewe based on the instructions provided, you need to calculate the total amount of medication based on the ewe's weight relative to the recommended dose.

The dosage guideline states to administer 4 ml for every 100 lbs of body weight. To find out how much medication to give to a 150 lb ewe, you first establish the proportionate dosage. Since the ewe weighs 150 lbs, you can set up a ratio comparing her weight to the base weight of 100 lbs:

1. Calculate how many times 100 lbs fits into 150 lbs:

150 lbs ÷ 100 lbs = 1.5

2. Multiply this factor by the recommended dosage of 4 ml:

1.5 × 4 ml = 6 ml

This means that for a 150 lb ewe, you would administer 6 ml of the medication. Thus, the correct answer is 6 ml, which aligns with the calculated dosage based on the animal's weight.