Another question from Twitter: “Other than meat, what purpose do pigs serve on a farm?”
Well. I can’t speak for a lot of other farmers, but I refer fondly to my sounder of mini pigs as “pasture maintenance pigs” because the bulk of their work is in fact pasture maintenance. You see, a previous owner of my little farm scraped up all the topsoil and sold it, which means that the bulk of our land has nothing but severely compacted clay subsoil on it where plants struggle to gain a foothold. My little pigs are excellent at rooting through the top few inches of soil, turning it over and breaking it into large clumps. The poultry has quickly learned to follow behind the pigs, and they break the big clumps up into smaller and smaller clumps, until what’s left is a nice layer of loose, aerated soil. Because the goats and sheep and pigs and poultry are also constantly pooping, the top layer of soil is slowly turning back into proper topsoil as the pigs and poultry mix organic matter and manure in, restoring fertility and allowing better pasture to grow for the goats and sheep.
Mr. Piggy Bank and his crew reduce hay waste; while they will eat directly from the bale they’re also happy (possibly even happier) to root through the layers of spilled hay that goats and sheep have deemed unfit for consumption, eating the spillage and the bugs living in it. In the process, they help break down the layer of waste hay into (you guessed it) good topsoil with a little help from the chickens and guinea fowl.
The pigs also have another important job to do in reducing the parasite load on the ruminants. Pigs are terminal hosts for the barberpole worm, a vicious parasite that lives in the abomasum of ruminants and feeds on blood, causing anemia, weakness, and eventually possibly death. But pigs aren’t ruminants and don’t have an abomasum, so the barberpole larvae that get eaten by pigs can’t complete their life cycle and die off. Pigs are also a terminal host for meningeal worm, the parasite that nearly killed Queen May last year. While it can do a great deal of damage to goats and sheep, it can’t get a hold in pigs and thus again they make the world safer for ruminants.
Their last job is to be adorable, personable, and smart. My little sounder of pigs is a joy to interact with and unfailingly makes me laugh when I scratch their sides and they fall over with little grunts of happiness to say “awww yeah, THAT’S the itchy spot. Scratch that spot some more.” They come running over oinking with enthusiasm when they see me coming with food, and a pig on a mission has a hilarious business-like trot that covers ground surprisingly fast for animals that are basically shaped like sausages on legs.