@Yassa & chizlit: Blaszkiewitz stated that he didn't say the thing on the christmas gratification (the accusation rests on a memory log) and that the staff was never offended about the 0,1-"joke" in 15 years - he apparently also used it for actual babies by staff and according to a German forum user occasionally also for men). By the way: It's not the first time such critique is publicly communicated just before his contract runs out. It was the same in 2008. It's very onbvious that some people don't like him (for various reasons) and we will have to wait what is to come from this all.
For the time being, I would be careful to accept such news before the staff members have been questioned. They will have a chance to state their views in a propper setting and will receive special assistance for any issues of discrimination in the near future. If the claims are true, however, Blaszkiewitz may have to go (in June or July 2014, if not sooner). In that case, I hope for a decent successor. it's not an easy job (funding, media and political support are just three difficult aspects which particularly concern the zoos in the German capital).