Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú y đề tài: Joint disorder; a contributory cause to reproductive failure in beef bulls? | Acta Veterinaria Scandinavica BioMed Central Research Open Access Joint disorder a contributory cause to reproductive failure in beef bulls Ylva Persson 1 Lennart Soderquist1 and Stina Ekman2 Address department of Clinical Sciences Division of Reproduction Faculty of Veterinary Medicine Swedish University of Agricultural Sciences SLU Uppsala 750 07 Sweden and department of Biomedicine and Public Health Division of Pathology Pharmacology and Toxicology Faculty of Veterinary Medicine Swedish University of Agricultural Sciences SLU Uppsala 750 07 Sweden Email Ylva Persson - Lennart Soderquist - Stina Ekman - Corresponding author Published 5 November 2007 Received 5 June 2007 Accepted 5 November 2007 Acta Veterinaria Scandinavian 2007 49 31 doi 1751-0147-49-3 1 r This article is available from http content 49 1 31 2007 Persson et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract The lame sire unsound for breeding can cause substantial economic loss due to reduced pregnancies in the beef-producing herd. To test the hypothesis that joint disorder is a possible cause of infertility in beef sires right and left hind limb bones from 34 beef sires were examined postmortem to identify lesions in the femorotibial femoropatellar stifle tarsocrural talocalcaneus and proximal intertarsal tarsal joints. The bulls were slaughtered during or after the breeding season due to poor fertility results. Aliquots of the cauda epididymal contents taken postmortem from 26 bulls were used for sperm morphology evaluation. As a control hind limbs but no semen samples from 11 beef bulls with good fertility results were included. Almost all .
