TY - JOUR L1 - http://www.czasopisma.pan.pl/Content/105385/PDF/24.pdf L2 - http://www.czasopisma.pan.pl/Content/105385 PY - 2016 IS - No 2 DO - 10.1515/pjvs-2016-0053 A1 - Śmiałek, M. A1 - Śmiałek, A. A1 - Koncicki, A. PB - Polish Academy of Sciences Committee of Veterinary Sciences PB - University of Warmia and Mazury in Olsztyn DA - 2016 T1 - Practical aspects of estimation of optimal time for vaccination of chicken against IBD with use of „Deventer formula” UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/105385 T2 - Polish Journal of Veterinary Sciences ER -