Authors
Beata Trawińska
Department of Animal and Environmental Hygiene, Faculty of Biology and Animal Breeding, Live Sciences University, Lublin, Poland
Jerzy Lechowski
Department of Breeding and Technology of Pig Production, Faculty of Biology and Animal Breeding, Live Sciences University, Lublin, Poland
Antoni Polonis
Department of Animal and Environmental Hygiene, Faculty of Biology and Animal Breeding, Live Sciences University, Lublin, Poland
Marta Kowaleczko
Department of Animal and Environmental Hygiene, Faculty of Biology and Animal Breeding, Live Sciences University, Lublin, Poland