Nubians have very long, floppy ears and they can be any color. They have a convex nose and are one of the larger breeds of goats. Their milk tends to be higher in protein and butter fat than other breeds. They tend to be a little bit more stubborn than other dairy goats and make a distinctive sound. Even Nubian kids sound like they are complaining.
LaManchas have ears that are so small that it looks like they don't have ears and they can also be any color. They have a straight nose and are a small breed. The LaMancha sound is typical of other goats. In our experience, they are more calm and gentle than other breeds. When you own a LaMancha, be prepared to answer the question What did you do to its ears?
Alpines can be almost any color except solid white and light brown with white markings (toggenburg color); their face should be dished or straight. They have erect ears and are a medium-large breed. They are popular with dairies due the amount of milk they produce.
Oberhaslis have very specific color standards. They are a bay color, known as Chamoise, with a black dorsal strip, udder, belly, and black below the knees. They should also have a nearly black head. Another aceptable color would be all black but this is only acceptable for does. They have erect ears and are a medium-small breed.
Toggenburgs also have very specific color requirements. They are light brown and have white ears and lower legs. The side of the tail and two stripes down the face must also be white. They have erect ears and have the smallest height requirments of all the breeds, but most of the toggenburgs I've seen are pretty big. They grow a shaggier coat than other dairy goat breeds. They also are popular with dairies. In our experience, they tend to be a little wilder and more high strung than other breeds.
Saanens are usually pure white. They usually have a large udder capacity and are popular with dairies due to the quantity of milk they produce.