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Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The objectives of this study were to investigate the kinetics of Lawsonia intracellularis (L. intracellularis) antibodies in foals on a farm with occurrence of equine proliferative enteropathy (EPE) by immunoperoxidase monolayer assay (IPMA). 63 foals were monitored from the age of two to 10 months at two-week intervals via physical examination and selected blood parameters. Serum was used to measure total protein and albumin concentrations as well as antibodies to L. intracellularis by IPMA. In case of hypoproteinaemia and/or hypoalbuminemia, a transabdominal ultrasonographic examination was performed to measure the wall thickness of small intestinal loops. Rectal swabs were taken from foals with suspected EPE to test for L. intracellularis by polymerase chain reaction. 55 of the monitored foals developed antibodies against L. intracellularis, only three foals developed EPE. The progressions of the individual antibody titres showed great variability, no specific pattern was observed. Foals with at least two consecutive seropositive samples considering an interval of two weeks did not develop EPE later during the observation period. Four foals showed developments of antibody titres against L. intracellularis interrupted by one or two negative serum results. Since there was no uniform titre progression and foals with and foals without EPE showed high antibody titres that were detectable for different lengths of time, it was not possible to conclude the further titre progression in foals based on the kinetics. The results illustrated that a single blood analysis is not always reliable to determine by IPMA whether a foal has been infected with L. intracellularis. Due to technical weaknesses of IPMA, the authors recommend to run all samples in duplicate in order to obtain reliable results on the foal’s exposure to L. intracellularis for further studies on the kinetics of L. intracellularis antibodies and when using the serology as a diagnostic tool for detecting L. intracellularis. [ABSTRACT FROM AUTHOR]

Copyright of Pferdeheilkunde is the property of Hippiatrika Verlag GmbH and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)