Does this look like asbestos?
No, it is plaster with animal hairs in it, probably pig or cow hair.

To determine if there are asbestos fibers inside the plaster, break it apart and examine with magnifying glass. Asbestos is a fine white fiber. It looks like this:



The fibers on the right are asbestos, those on the left are animal hairs. Asbestos fibers will be colorless, very fine and clumped together, like in the photograph. Animal hairs tend to be by themselves and have color. Notice that an animal fiber will be rounded, but asbestos tends to be stiff like a corn stalk with crinkles or breaks in it.