It would be best to get the male fixed as adult male goats become quite rough and frisky to both humans and other goats, when bottle feeding make sure you don't feed them to much, animals like goats are prone to 'bloat' which can make them very sick and can even be fatal. I work at an animal park as a keeper and we have an abundance of goats and kids, they are mainly fed roughage such as hay, roo cubes, grass, dirt and cracked corn and will appreciate any other greens and things as a treat. They are known to become very attached to humans to and can be great pets