Authors
Karolina Stasiak
Department of Animal Breeding and Biology, UTP University of Science and Technology, Mazowiecka 28, 85-084, Bydgoszcz, Poland
Stanisław Kondracki
Department of Animal Reproduction and Hygiene, Siedlce University of Natural Sciences and Humanities, Prusa 14, 08-110, Siedlce, Poland
Maria Iwanina
Department of Animal Reproduction and Hygiene, Siedlce University of Natural Sciences and Humanities, Prusa 14, 08-110, Siedlce, Poland