breeding buck

Hello I have recently started raising Boer goats and am now breeding my does and my buck keeps fighting with the does. Why is this happening and how do I solve this. Thank you all in advance.

Oleander Farm Napolean is a handsome fellow ready to breed! Sire: Sugarfield, Heros World On Fire Tr23930 Dam: Oleander Farm, Tamika Tr24619 We are located just minutes North of London, Ontario Canada Check out our website for more goats for sale http://www.oleanderfarm.ca 519-666-3950