From: Joint disorder; a contributory cause to reproductive failure in beef bulls?
Classification | Bulls with poor fertility | Bulls with unsatisfactory sperm morphology | Bulls with satisfactory sperm morphology | Control bulls |
---|---|---|---|---|
Normal | 4 | 4 | Â | 1 |
Mild OA | 3 | 3 | Â | 6 |
Moderate OA | 5 | Â | 2 | 4 |
Severe OA | 17 | 4 | 9 | Â |
Deformed OA | 5 | 3 | 1 | Â |