@ARTICLE{Kulka_M._Serum_2014, author={Kulka, M. and Bełtowski, J. and Kluciński, W. and Orłowska, M. and Kołodziejska, J. and Kleczkowski, M.}, number={No 1}, journal={Polish Journal of Veterinary Sciences}, howpublished={online}, year={2014}, publisher={Polish Academy of Sciences Committee of Veterinary Sciences}, publisher={University of Warmia and Mazury in Olsztyn}, title={Serum paraoxonase-1 activity of dairy Holstein-Fresian cows in different lactation stages – preliminary study}, URL={http://journals.pan.pl/Content/99247/PDF/19.pdf}, doi={10.2478/pjvs-2014-0019}, }