Vet Education Transfer Services, Inglewood, Taranaki, New Zealand.
School of Veterinary Science, Massey University, Palmerston North, Manawatu 4442, New Zealand.
Vet J. 2022 Dec;290:105927. doi: 10.1016/j.tvjl.2022.105927. Epub 2022 Nov 2.
Data on the foot lesions of housed dairy goats, especially those that are not lame, is sparse. In this study, visits were made to four farms for whole herd locomotion scoring after milking and to observe routine foot trimming. During trimming, the amount of trimming required for each hoof was recorded, alongside the presence of lesions. The process was repeated at the next routine foot trim on three of the four farms (on Farm 1 whole herd locomotion scoring after milking was not feasible). Across both visits, 3445 locomotion scores were recorded, alongside 3850 trimming and lesion records. There were large differences between farms and visits in the proportion of lame goats (6.7 to 25.5%) and in the proportion of goats which needed a substantial trim of all four feet (15.1-33.1%). Hoof lesions were observed in 65.5% of trimmed goats. We defined lesions by their site and presence of separation and/or granuloma, with white line separation being the most commonly recorded lesion (41.5% of goats). On all visits on the three farms which were locomotion scored, the number of goats recorded as lame was lower than the number observed with white line lesions, but the relative proportion ranged from 17% to 95.4%. Separations were much more common than granulomas, as granulomas were usually accompanied by separation. Toe lesions were much more likely to be associated with granulomas than white line lesions, with 91.5% of toe separations having granulomas but only 10.6% of white line separations. This study provides useful baseline data for comparing lesions and locomotion scoring between goat herds but also identifies areas where we need more data and more consensus.
有关圈养家畜山羊脚部病变的资料，尤其是那些没有跛行的山羊，十分有限。本研究对四个农场进行了挤奶后全群运动评分检查，并观察了常规的修蹄情况。在修蹄过程中，记录了每只蹄所需的修剪量以及病变的存在情况。在接下来的三次修剪中，在另外三个农场重复了这个过程（在第一个农场，挤奶后全群运动评分是不可行的）。在这两次检查中，共记录了 3445 个运动评分、3850 次修剪和病变记录。不同农场和检查之间跛行山羊的比例差异很大（6.7%至 25.5%），所有四只蹄都需要大量修剪的山羊比例也差异很大（15.1%至 33.1%）。在修剪过的山羊中，有 65.5%观察到了蹄部病变。我们根据病变的位置和分离及/或肉芽肿的存在来定义病变，白线分离是最常见的病变（41.5%的山羊）。在三个进行运动评分的农场的所有检查中，记录的跛行山羊数量都低于观察到白线病变的数量，但相对比例在 17%至 95.4%之间。分离比肉芽肿更常见，因为肉芽肿通常伴随着分离。脚趾病变比白线病变更有可能与肉芽肿有关，91.5%的脚趾分离伴有肉芽肿，但只有 10.6%的白线分离伴有肉芽肿。本研究为比较不同山羊群的病变和运动评分提供了有用的基线数据，但也确定了我们需要更多数据和更多共识的领域。
