1 | University of Agriculture in Krakow, Department of Animal Physiology and Endocrinology, Al. Mickiewicza 24/28, 30-059 Kraków, Poland |
2 | Slovak University of Agriculture in Nitra, Department of Animal Physiology, Tr. A. Hlinku 2,949 76 Nitra, Slovak Republic |
3 | Institute of Genetics and Reproduction of Farm Animals, Animal Production Research Centre Nitra, Hlohovecka 2, 949 92 Lužianky, Slovak Republic |