Help your calves conquer digestive stress with Manna Pro’s Calf Care Livestock Supplement! It’s made in the USA with probiotics and Manna Pro’s proprietary Opti-Gut to help support your mooing mates’ gut health and encourage healthy digestion. Opti-Gut is a combination of natural ingredients which not only includes the contents of probiotic bacteria, but also of the yeast cell. To serve this boost of nutrition, simply combine it with your livestock’s milk replacer or just sprinkle it on top of their dry feed.