Hog production management by weight

Abstract From the Canadian patent

Hogs are divided by weight into separate pens with the heaviest hogs closest to the final market weight in the last pen. Each pen includes a sorting scale , leading to the next pen of the series or in respect of the last pen, to a , discharge location. A control unit operates the sorters to remove a required number of hogs for , market from the last pen and to transfer from each pen to the next substantially the , same number so as to maintain the numbers of hogs in the pens substantially constant. The sorter can also be used to sort the heaviest hogs into a pen where , their feed is periodically and repeatedly withheld to slow their growth relative to pens , of average and lightest …