Reproductive failure in an Austrian piglet- producing farm due to porcine circovirus genotype 2d

Reif, Johannes; Renzhammer, Rene; Brunthaler, Rene; Weissenbacher-Lang, Christiane; Auer, Angelika; Kreutzmann, Heinrich; Fux, Robert; Ladinig, Andrea und Unterweger, Christine (2022): Reproductive failure in an Austrian piglet- producing farm due to porcine circovirus genotype 2d. In: Acta Veterinaria Hungarica, Bd. 70, Nr. 2: S. 149-155

Abstract

Infections of pigs with porcine circovirus type 2 (PCV2) can lead to various clinical conditions including reproductive disorders (PCV2-RD). In general, a transplacental infection of fetuses leads to mummi-fication and stillbirth. So far, PCV2-RD has mainly been described in specific-pathogen-free (SPF) herds or farms with a high proportion of gilts. From December 2018 to February 2019, a high abundance of mummified fetuses (15.5%) was observed in two farrowing groups in an Austrian piglet-producing farm. PCV2 DNA was detected using qPCR in organs of all six investigated fetuses (2.07 3 108-1.09 3 1012 PCV2) genome equivalents/g tissue and via in situ hybridisation in organs from five fetuses, while histologic lesions were not observed in a single fetal heart. All isolates were sequenced and identified as PCV2d. After the implementation of a regular vaccination of all sows against PCV2, the abundance of mummified fetuses dropped to 3.5% in May 2019. In contrast to previous reports about PCV2-RD, this farm was neither an SPF herd nor a start-up herd with a high proportion of gilts. The implementation of regular PCV2 vaccination helped to reduce the abundance of mummified fetuses substantially.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Tiermedizin > Veterinärwissenschaftliches Department
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 0236-6290
• Sprache: Englisch