Human Dairy Program, The Feeding Cycle (Pixiv Fanbox)

Then the cattle must take the tube into their mouths and suck the liquid meal as if they were milking a man’s cock for his cum. The thick colorless liquid diet is a high-protein, vitamin-enhanced solution that tastes awful, so most livestock try to swallow it right down their throats rather than let it hit their tongue. Although feedings are every hour, 24-hours a day, the desperate cattle are always hungry. The physical demands of non-stop milk production takes a lot of nutrition and depletes a hucow’s energy as fast as she can replace it. They really do suck the stuff down when they are given the chance. The feeding cycle only lasts a few minutes before the feeding tubes are automatically withdrawn. You can see the pathetic look in their eyes; they don’t know if this will be their last meal.