Planting bamboo in a pasture will feed any cattle, sheep, goats, horses or hogs and not be able to spread or thrive, even in a summer rainfall climate (China and Japan are east coastal countries, right?) There is a native American bamboo: "Canebrake" it grows in Tennesee and around the battle of New Orleans (if you know the song, the Brits "ran thru the canebrake where a rabbit couldn't go" You might be able to grow bamboo of large size in a grove, with rotational grazing, but generally when the animals get a taste for bamboo, if you're cutting, say, a thirty-foot culm of Phyllostachys nigra, and have experienced livestock, they'll be on it before it hits the ground, so cut the branches off and get the poles to seasoning in the barn asap.) If you have smaller bamboo, the animals quickly learn to push it down and have a picnic. (small: less than 2.5 inch diameter) During shooting season, keep the animals out of the bamboo. When you harvest poles, trim the branches asap, open the gate, and the animals will crowd in to eat all the leafy bits; on wet soil, the branches can sometimes get stomped into the muck, and improve drainage, with judicious management. Never run hogs in your bamboo during shooting season.