Knut Niebuhr

Possible risk factors for keel bone damage in organic laying hens.

C. Brenninkmeyer, U. Knierim, S. Gunnarsson, 2019, Animal : an international journal of animal bioscience.

Prevalence and magnitude of helminth infections in organic laying hens (Gallus gallus domesticus) across Europe.

C. Brenninkmeyer, H. Mejer, S. Thamsborg, 2015, Veterinary parasitology.