Veterinary Clinical Studies program, Graduate school, Kampaeng Saen Campus, Kasetsart University, Nakorn Pathom, Nakorn Pathom, Thailand.
Department of Large Animal and Wildlife Clinical Science, Faculty of Veterinary Medicine, Kasetsart University, Nakorn Pathom, Nakorn Pathom, Thailand.
F1000Res. 2024 Mar 8;12:1504. doi: 10.12688/f1000research.134321.2. eCollection 2023.
Underrun heels are among the most hoof imbalances, causing poor performance in hoses. Several corrective shoeing protocols have been performed, but the outcomes have yet to be consistent. In this study, we proposed an alternative trimming protocol for managing underrun heels: strategic palmar trimming before conventional shoeing. Therefore, the current study aimed to investigate the potential of strategic palmar trimming before conventional shoeing for managing hoof imbalance in horses with underrun heels.
Eleven affected horses were divided into control (5 horses with 14 defective hooves) and experimental (6 horses with 16 defective hooves) groups. The experimental group underwent strategic palmar trimming before conventional shoeing, while the control horses received regular trimming before traditional shoeing. Dorsal hoof wall angle (DHWA)/heel angle (HA) ratios, heel-bulb distance, and six parallel lines indicating solar surface dimension were determined before, and after 5, 10, 15, 20, 25, and 30 weeks of the different trimming protocols. Palmar trimming distance was only measured in experimental horses.
A group-by-time interaction was observed for DHWA/HA ratios and solar surface dimension. Separate effects for group and time were observed in the heel-bulb distance. A modification in hoof conformation was detected at 25-30 weeks only in horses in the experimental group, including decreases in DHWA/HA ratio, heel-bulb distance, and palmar trimming distance, coinciding with an increase in palmar width of trimmed hooves.
Different trimming protocols produced a different effect on hoof conformation. Therefore, tactical remedial trimming can potentially control poor hoof conformation in horses with underrun heels.
低跟蹄是最常见的蹄失衡之一，导致马表现不佳。已经有几种矫正蹄铁的方案，但结果并不一致。在这项研究中，我们提出了一种管理低跟蹄的替代修剪方案：在常规蹄铁前进行掌侧修剪。因此，本研究旨在探讨在常规蹄铁前进行掌侧修剪对管理低跟蹄马的蹄失衡的潜力。
将 11 匹受影响的马分为对照组（5 匹马，14 个缺陷蹄）和实验组（6 匹马，16 个缺陷蹄）。实验组在常规蹄铁前进行策略性掌侧修剪，对照组马在传统蹄铁前接受常规修剪。在不同修剪方案前、后 5、10、15、20、25 和 30 周，测量背侧蹄壁角（DHWA）/跟角（HA）比、跟球距和表示太阳表面尺寸的 6 条平行线。掌侧修剪距离仅在实验组的马中测量。
DHWA/HA 比和太阳表面尺寸观察到组间时间交互作用。在跟球距观察到组和时间的单独作用。仅在实验组的马中，在 25-30 周时检测到蹄型的改变，包括 DHWA/HA 比、跟球距和掌侧修剪距离的降低，同时修剪后的蹄掌侧宽度增加。
不同的修剪方案对蹄型有不同的影响。因此，战术矫正修剪可能有助于控制低跟蹄马的不良蹄型。
