Hi! So my boer lives with his twin sister they’re about 10 weeks old. Today for the first time I saw him mount his sister. We plan to get him banded but an experienced goat owner said to band 3-4 months old. Currently he’s in a separate pen then his sister but they’re both pretty upset. So what time are the boer bucks fertile? One website I saw said 5 months old but another said at 7 weeks. Thanks!