I started Mitch on Iam's dog food a month or so ago. When I started he weighed about 73 pounds. I weighed him yesterday and he was 68 pounds. I would like him between 70 and 75.

The feeding instructions say a 70 pound dog gets 2 2/3 cup of food per day, and an 80 pound dog gets 2 3/4 cup of food per day.

The difference between the two is 8/100 of a cup. That is too small for me to reliably measure each morning, but it apparently makes a difference. The food must be very nutrition-dense.

Because I am me, this morning I measured out four 2 2/3 cup servings, weighed each one and then averaged their weights. I did the same for 2 3/4 cups of food. There is about a one ounce difference.

So, for the last month or so I have been feeding him 11.3 ounces of food. Starting tomorrow I will weigh out his food for him each morning and will start feeding him 11.8 ounces per day.

Feeding him by the ounce will also give me much finer control over his food. After a month if he still needs a little more weight, or he if he has put too much on, it will be a simple matter to add or subtract a tenth of an ounce or two from his daily ration.

I also know exactly how much a bag of dog food will last him too. A 40 pound bag has 640 ounces, so at 11.8 ounces per day it will last 54 days.