We performed a standing hand-assisted laparoscopic ovariectomy in a draft mare that presented with high serum anti-Müllerian hormone (AMH) level and had an enlarged single cystic ovary. Histopathological examination revealed no tumor cell proliferation in the ovary, but the presence of a large ovarian cyst was confirmed. In the diagnosis of abnormal ovaries in mares, a comprehensive assessment should be performed, including the monitoring of ovarian morphology and biomarkers over time, to determine the disease prognosis and treatment plan. The case of this mare with a nonneoplastic abnormal ovary and increased serum AMH level was rare. We suggest that standing hand-assisted laparoscopic ovariectomy is useful for the removal of large ovaries in draft mares.
We succeeded in producing a monoclonal antibody (MAb) against bovine thrombin. The MAb belonged to mouse IgG(1), and its light chain consisted of kappa-chain. The MAb reacted with bovine and human thrombins, which were coated by coupling to poly-lysine-coated wells with glutaraldehyde, but did not react with the thrombin-like enzyme, habutobin. Furthermore, the MAb did not react with thrombin which was coated to plates without poly-lysine and glutaraldehyde. The concentration of thrombin in ovalbumin solution (10 mg/mL) could be measured by means of the enzyme-linked immunosorbent assay (ELISA) double sandwich method using the MAb and polyclonal antibody. Thrombin added to defibrinated plasma could not be detected by means of the ELISA double sandwich method using the present MAb, and this may be due to the AT-III activity in the defibrinated plasma. Postclotting thrombin could be detected by means of the ELISA-double sandwich method using the MAb. It is suggested, from the results of our experiments, that the MAb obtained reacted in a limited fashion to the C-terminal of bovine thrombin.
This study investigated consecutive fluctuations in serum activities of bone-specific alkaline phosphatase (ALP) isoenzyme 3 (ALP3) in 11 clinically healthy Holstein heifers during the first 18 months of life. ALP3 activities at the first sampling time point after weaning (3 months) were significantly lower than those at multiple time points during the pre-weaning period. Those activities increased from a minimum at 3 months to a peak at 6 months during the post-weaning period. In the anthropometric data, daily body weight and wither height gains appeared to be below the public data at 4 months and 4–5 months, respectively. The data suggested that serum ALP3 activity can be used to monitor skeletal growth of heifers at weaning.
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