1. Division of Biology; Faculty of Science; University of Zagreb; Rooseveltov trg 6 10000 Zagreb Croatia
2. Division of Molecular Biology; Laboratory for Genotoxic Agents; Ruđer Bošković Institute; Bijenička cesta 54 10000 Zagreb Croatia
3. Faculty of Veterinary Medicine; Clinic for obstetrics and reproduction; University of Zagreb; Heinzelova 55 10000 Zagreb Croatia
4. School of Veterinary Medicine; Aristotle University of Thessaloniki; 54124 Thessaloniki Greece
5. Department of Livestock Production; Biotechnical Faculty; University of Montenegro; Mihaila Lalića 1 81000 Podgorica Montenegro
6. Faculty of Veterinary Medicine; Institute of Reproduction and Biomedicine; Cyril and Methodius University; Lazar Pop Trajkov 5-7 1000 Skopje Former Yugoslav Republic of Macedonia
7. Animal Science Department; Faculty of Agriculture; Svetošimunska cesta 25 10000 Zagreb Croatia