Authors
Marcin Wegner
Boehringer-Ingelheim, Warszawa, Poland
Dariusz Kokoszyński
Department of Animal Breeding and Nutrition, Faculty of Animal Science and Biology, Bydgoszcz University of Science and Technology, Bydgoszcz, Poland
Dariusz Piwczyński
Department of Animal Biotechnology and Genetics, Faculty of Animal Science and Biology, Bydgoszcz University of Science and Technology, Bydgoszcz, Poland