An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Stefaniak T, Madej JP, Graczyk S, Siwek M, Łukaszewicz E, Kowalczyk A, Sieńczyk M, Bednarczyk M.Stefaniak T, et al. Among authors: kowalczyk a.BMC Vet Res. 2019 Apr 3;15(1):105. doi: 10.1186/s12917-019-1850-8.BMC Vet Res. 2019.PMID: 30943971Free PMC article.
Lukaszewicz E, Adamski M, Kowalczyk A.Lukaszewicz E, et al. Among authors: kowalczyk a.Br Poult Sci. 2008 Jan;49(1):21-7. doi: 10.1080/00071660701821683.Br Poult Sci. 2008.PMID: 18210286
Kowalczyk A, Łukaszewicz E.Kowalczyk A, et al.Theriogenology. 2012 Feb;77(3):507-13. doi: 10.1016/j.theriogenology.2011.08.025. Epub 2011 Oct 19.Theriogenology. 2012.PMID: 22015159
Łukaszewicz E, Kowalczyk A, Rzońca Z.Łukaszewicz E, et al. Among authors: kowalczyk a.Zoo Biol. 2011 Nov-Dec;30(6):672-80. doi: 10.1002/zoo.20367. Epub 2010 Nov 30.Zoo Biol. 2011.PMID: 22183730
Kowalczyk A, Łukaszewicz E, Rzońca Z.Kowalczyk A, et al.Theriogenology. 2012 Mar 15;77(5):899-907. doi: 10.1016/j.theriogenology.2011.09.015. Epub 2011 Dec 20.Theriogenology. 2012.PMID: 22192393
Kowalczyk A, Łukaszewicz E.Kowalczyk A, et al.PLoS One. 2015 Jan 23;10(1):e0116797. doi: 10.1371/journal.pone.0116797. eCollection 2015.PLoS One. 2015.PMID: 25615640Free PMC article.
Łukaszewicz ET, Kowalczyk AM.Łukaszewicz ET, et al. Among authors: kowalczyk am.Reprod Domest Anim. 2015 Jun;50(3):452-7. doi: 10.1111/rda.12512. Epub 2015 Mar 17.Reprod Domest Anim. 2015.PMID: 25779624