I don't actively measure. I have 4 dishes of varying sizes (I'll guesstimate and say it's a total of 3 cups in volume, and I have 10 hens) and my girls seem to take about 2-3 hours to finish them off, so I figure that's a good amount to set out in the morning.Thank you! I’m going to try this. Do you follow the 1/2 cup per chicken rule?