Patent ID: 8443762

Claim:
A method of feeding different diets to at least two groups of pigs, comprising: providing a barn having a lounging area, a first feed court and a second feed court with the first and second feed courts being separated from one another and with each of the first and second feed courts having an entrance and a one-way exit gate; the one-way exit gate of the first feed court permitting pigs in the first feed court to enter the lounging area from the first feed court; the one-way exit gate of the second feed court permitting pigs in the second feed court to enter the lounging area from the second feed court; providing a microprocessor including pig weight growth curve software configured to create a pig weight growth curve with X and Y axes with the X axis thereof corresponding to the days of a finishing cycle and the Y axis thereof referring to a weight set point of the pig weight growth curve; providing a walk-through scale having an inlet open to the lounging area and first and second outlets open to the entrances of the first and second feed courts respectively with the walk-through scale having a sort gate which is controlled by the microprocessor to selectively direct pigs into the first and second feed courts based on a comparison of the detected weight of the pig and the weight set point of the pig weight growth curve for the particular date that the pig is passing through the walk-through scale; actuating the sort gate to direct pigs haying a detected weight of below the weight set point of the pig weight growth curve for that particular date into the first feed court; actuating the sort gate to direct pigs having a detected weight above the weight set point of the pig weight growth curve for that particular date into the second feed court; feeding different diets to the pigs in the first and second feed courts; repeating the sorting process each time a pig passes through the walk-through scale and; changing the pig weight growth curve according to one or more variables.