List Of Do Cows Eat Potato Vines References. Sweet potato vine is one of the most important feeds for pigs, mainly because of its high crude protein content, high digestibility (over 65 percent) and amino acid content. As part of the nightshade family, potato vine’s leaves are poisonous to ruminants, but they'll nibble at young shoots or hoof out the tuber when it’s below the.

Fresh fodders are mainly green forages such as napier grass, lucerne and sweet potato vines among others. Cut fresh fodder and leave in a dark place for a day to wilt, then chop into 2 inch (5cm) pieces to make it easy for your cow to eat. Since cattle do not generally consume tall larkspurs before flowering, grazing early before plants flower may be an acceptable grazing option.