Vendsyssel Landdyrlaeger, Bredgade 80, Tårs, DK-9830, Denmark.
Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 3, Frederiksberg C, DK-1870, Denmark.
Acta Vet Scand. 2024 May 14;66(1):19. doi: 10.1186/s13028-024-00742-0.
The aim of the study was to characterise and determine the prevalence of band-shaped tail lesions in Holstein cows. Lesions were present either as wounds or by epithelised granulation/connective tissue formations. Both types were characterised by a median localisation 7 cm from the tip of the tail, and they occurred on the dorsal aspect of the tail. From here they encircled the tail either completely or in varying degrees, and they were often present as isolated lesions (93%). The prevalence of band-shaped tail lesions was found to be 25% among 2099 cows examined in 16 Danish Holstein herds with a variation from 18 to 40% between herds. In the herds, the wound lesions and the connective tissue formations accounted for 22% and 78% of all band-shaped tail lesions, respectively. Among 458 Holstein cows examined at an abattoir the prevalence of band-shaped tail lesions was 23%, i.e. similar to the prevalence within the herds. At the abattoir the share of band-shaped wound lesions was 67% and the band-shaped connective tissue formation 33%. Associations between the occurrence of band-shaped tail lesions and parity and lack of the tail tip were observed.
本研究旨在对荷斯坦奶牛的带状尾部损伤进行特征描述和流行率分析。损伤表现为伤口或上皮化的肉芽组织/结缔组织形成。这两种类型的损伤均具有距尾部尖端 7 厘米的中位数定位，且发生在尾部的背侧。从这里开始，它们要么完全环绕尾部，要么以不同程度环绕，并且通常以孤立的损伤形式出现（93%）。在丹麦 16 个荷斯坦奶牛场的 2099 头奶牛中，带状尾部损伤的流行率为 25%，不同牛场之间的流行率从 18%到 40%不等。在这些牛场中，伤口损伤和结缔组织形成分别占所有带状尾部损伤的 22%和 78%。在屠宰场检查的 458 头荷斯坦奶牛中，带状尾部损伤的流行率为 23%，与牛场中的流行率相似。在屠宰场，带状伤口损伤的比例为 67%，带状结缔组织形成的比例为 33%。观察到带状尾部损伤的发生与胎次和尾部尖端缺失之间存在关联。
