Check out Mike's post about feeding the 16% protein hog feed. I used to feed the lab blocks to the ASFs too, and got tired of the waste and the expense (esp. after losing my job). A 50# bag of the hog feed is $11, and lasts MUCH longer than the $21.99 25# of blocks, even when dumping the hog feed on the substrate. I used to feed in bowls, but they just toss it around, so I now use the crocks for something else, and the blocks are for the pets and foodie fancies.