That article discusses the basics of integrating herbivores and omnivores in a way to yield significant feed for the omnivore. The herbivore doesn't have to be cows, we have done similar things with rabbits, goats, and even chickens.
With small livestock, you also have significant slaughter waste, which can be cooked and fed to the pigs, or better yet, lacto-fermented and fed.
If you don't have pigs, you can put chickens in that slot, they will eat just about anything a pig eats. This is the basis behind our Food Web project: http://velacreations.com/foodweb By integrating species and maximizing connections between multiple species, you can significantly increase your output while maintaining or even reducing your inputs.
I like this a lot! I do have pigs and chickens and cows. Frankly moving pigs daily is a pain, but so are high feed bills. I do have two 2.5 acre paddocks fenced for pigs (woven wire with a row of barbed at the ground) I may have to give this a try. Thanks!
you can also bring the manure to the pigs, if your setup allows it. I usually give the pigs and chickens a huge pile each week that is the clean out of all the herbivore areas, so it is bedding+manure. They eat what they want, till the rest into the soil.
So I read the article and it didn't say what I thought it was going to and what I think is the best thing about manure, the worms and the dung beatle larva. pigs get high quality fat and protein from bugs in the manure. When I put my pigs where there's manure they don't eat the manure they eat the bugs. Here's a funny story chicken manure is widely used as cow food in some countries. Cows seem to like turkey poop more then chicken poop lol. The turkeys eat more grass and there poop is greenish black, almost irresistible if you'er a cow. Anyway 1kg DM of cow dung can supposedly grow 1kg of live worms WM. If I were a pig I think I would perfer the worms.
People say oh your pigs will get worms if you let them root at the dirt and stuff. Ya they will get worms if you are feeding a lot of grains but if you feed alfalfa and let them forage weeds and bug they will do fine cuz the parasites don't affect them as much on that diet.
Yeah, the pigs will definitely eat the critters, too, but going through a critter will significantly reduce the amount of feed. The conversion of DM manure to DM earthworm is 10:1 (or less). Earthworms are mostly water. That means the pig is getting 1/10 of the feed value of the original manure. Grubs are around 6 or 5:1. Then there's the conversion through the bacteria and other critters to get it to earthworm/grub food in the first place. Going through bugs increases the protein, and that is good for the pigs too, so the best way is to get some insects and some manure/plant matter together.
Many manures start out high in protein, already. Rabbit manure is 20% or better. Pigs love poultry manures, too.