We purchased an all black boer buck in September to add to our goat family. We are looking to breed him to our 3 does this fall. We were told he was born last March so he will soon be a year old but he only weighs about 60lbs. Is this normal? How can we be sure he is an actual boer goat? He is filled out, not super skinny. We just are afraid he won't be ready to breed to our big girls. We have a boer/Nubian cross doe who was born on our farm and is about 85lbs. And she's supposed to be the same age as the buck.