01221nas a2200229   4500000000100000008004100001260007000042653001800112653001900130653001700149100001300166700002600179700001600205700001800221700001300239700001300252245013300265300001200398490000800410520055900418022001400977       2014                            d  c06/2014bSchlütersche Verlagsgesellschaft mbH & Co. KGaHannover10aleptospirosis10aseroprevalence10adairy cattle1 aK Rypula1 aK Płoneczka-Janeczko1 aK Bierowiec1 aP Chorbiński1 aM Pearce1 aM Lesiak00aPrevalence of antibodies to Leptospira hardjo in bulk tank milk from unvaccinated dairy herds in the south-west region of Poland  a247-2500 v1273 aBulk tank milk samples were collected from 309 randomly selected dairy cattle herds from the south-western region of Poland in 2010–2011. Samples were tested for antibodies against Leptospira hardjo using DAS-ELISA. Herd level seroprevalence of antibodies against this serovar was low (3.2%). Sample value related to positive control value (S/P ratio) results were highest in herds with 51–100 and 101–500 animals, being 4.6 and 4.1% respectively. The S/P ratio of positive samples indicated a low percentage of infected animals in positive herds.   a0005-9366