Hog Watch Manitoba - June 23rd, 2023. Hog Watch Manitoba, a non-profit, advocacy group, says it believes a recent claim by Manitoba Pork about how much water it is using, needs more proof. In a newspaper ad, the industry organization declares, “Hog farms today require 40% less water per kilogram of pork produced, compared to ļ¬fty years ago.” Larry Powell of Hog Watch says this doesn’t tell the whole story. "Even if consumption per unit has gone down, what does it matter when that figure is surely being eclipsed by rising animal numbers? There are well over three times as many pigs on Manitoba farms now as there were half-a-century ago. "Not only that, the use of slurry, which has been spread on vast farm fields in this province for decades, is more than 80% water. It's been on the increase since the nineties. " A University of Manitoba study concluded that pigs produced 346 thousand tonnes of dry manure in 2007 alone. Sinc