I've been accused of believing too much of what I read on the internet, so I'd be a little leary of giving garlic to my beag... Maybe the little bit that you guys are feeding won't make a difference, or maybe you're just not seeing any short term difference and it may cause later year problems? Is garlic really ok to give to your pets?
http://www.peteducation.com/article.cfm?cls=2&cat=1939&articleid=2414
http://www.peteducation.com/article.cfm?cls=2&cat=1939&articleid=2414