- Polish Journal of Veterinary Sciences. Seasonal-dependent variations in metabolic status of spermatozoa and antioxidant enzyme activity in the reproductive tract fluids of wild boar/domestic pig hybrids. A. Dziekońska, L. Fraser, M. Koziorowska-Gilun, J. Strzeżek, M. Koziorowski, W. Kordan; Vol.17, No 2 (2014), 307-313.
- Polish Journal of Veterinary Sciences. Supplementation of different concentrations of Orvus Es Paste (OEP) to ostrich egg yolk lipoprotein extender improves post-thaw boar semen quality. L. Fraser, E. Jasiewicz, W. Kordan; Vol. 17, No 2 (2014), 225-230.
- Polish Journal of Veterinary Sciences. Single Nucleotide Polymorphism within arylsulfatase D gene (ARSD) is associated with selected kinematic parameters of sperm motility in Holstein-Friesian bulls. Hering D.M., Lecewicz., Kordan W., Kamiński S. 2014. 17 (3): 539-541.
- Animal Reproduction Science. Post-thaw sperm characteristics following long-term storage of boar semen in liquid nitrogen. L. Fraser, J. Strzeżek, W. Kordan; 147 (2014), 119-127.
- Bulletin of the Veterinary Institute in Pulawy. Effect of seminal plasma zinc-binding proteins on motility and membrane integrity of canine spermatozoa stored at 5oC. M. Mogielnicka-Brzozowska, A. Dziekońska, R. Strzeżek, M. Załęcki, A. Majewska, K. Tołścik, W. Kordan; 2014, 58, 163-168.
- Theriogenology. The activity of N-acetyl-b-hexosaminidase (b-HEX) in boar seminal plasma is linked with semen quality and its suitability for cryopreservation. P. Wysocki, A. Orzołek, J. Strzeżek, M. Koziorowska-Gilun, Ł. Zasiadczyk, W. Kordan; 2015, 83(7): 1194-1202 (dostępny od 31.12.2014).
- Animal Science Papers and Reports. The ability of zinc-binding proteins from boar seminal plasma to bind heparin and phosphorylcholine; Mogielnicka-Brzozowska M., Strzeżek J., Dziekońska A., Kordan W. 2014, vol 32 no 4, 327-336.
- Reproduction in Domestic Animals. Association Between ETFA Genotype and Activity of Superoxide Dismutase, Catalase and Glutathione Peroxidase in Cryopreserved Sperm of Holstein-Friesian Bulls. D.M. Hering, M. Lecewicz, W. Kordan and S. Kaminski; 2015, 50: 168-171 (dostępny od 3.12.2014).
- Reproduction in Domestic Animals. Seasonal-dependent variations in metabolic characteristics of stallion spermatozoa; Dziekońska A., Mogielnicka-Brzozowska M., Fraser L., Lecewicz M., Szczepańska A., Kordan W., Jaworski Z. 2014. 18th ESDAR Conference., 49 (Suppl. 3), 66.
- Reproduction in Domestic Animals. Age-dependent changes and seasonal variations In boar ejaculate fractions; Fraser L., Zasiadczyk Ł, Kordan W. 2014. 18th ESDAR Conference., 49 (Suppl. 3), 68.
- Reproduction in Domestic Animals. Antioxidant status of seminal plasma of boar ejaculate fractions; Kordan W., Fraser L., Koziorowska-Gilun M., Filipowicz K. 2014. 18th ESDAR Conference., 49 (Suppl. 3), 76.
- Comptes Rendus De L’academie Bulgare Des Sciences. Differences between seminal plasma proteins from boar semen with high and low cryptolerance of the spermatozoa. D. Daskalova. P. Wysocki, D. Gradinarska, E. Hristova, M. Kicheva-Ivanova. 2014. Tome 67, No 12, 1663-1668.