Authors
Anna Sawa
Department of Cattle Breeding, UTP University of Science and Technology, Bydgoszcz, Poland
Kamil Siatka
Department of Cattle Breeding, UTP University of Science and Technology, Bydgoszcz, Poland
Sylwia Krężel-Czopek
Department of Cattle Breeding, UTP University of Science and Technology, Bydgoszcz, Poland