Siegers Esther, van Wijk Emma, van den Broek Jan, Sloet van Oldruitenborgh-Oosterbaan Marianne, Munsters Carolien
Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 114, 3584 CM Utrecht, The Netherlands.
Equine Integration, Groenstraat 2C, 5528 NS Hoogeloon, The Netherlands.
Animals (Basel). 2023 Feb 16;13(4):689. doi: 10.3390/ani13040689.
Friesian stallions have to complete a 10-week studbook approval test (70-day test) consisting of dressage and driving training for acceptance as a breeding stallion. Training response of the horses to this approval program was evaluated. External workload (EW) of 16 stallions (3.2 ± 0.4 years old) was registered during the 9 weeks preceding the 70-day test (preparation period) and during 70-day test. Ridden indoor standardized exercise tests (SET), measuring heart rate (HR) and plasma lactate concentration (LA) at walk, trot and canter, were performed in week 1 (SET-I), 6 (SET-II) and 10 (SET-III) of the 70-day test. Linear mixed effect models were used to analyze HR and LA related to SETs and EW related to the phase of the study, using Akaike's information criterion for model reduction. EW was higher in the 70-day test compared to the preparation period, with longer duration of training sessions. Compared to SET-I, horses showed increased HR and LA after canter in SET-II and SET-III, indicating that they were more fatigued. The fact that the fitness of these Friesian stallions decreased during the 70-day test suggests overtraining. To optimize training effects and welfare of these horses, the workload of the training program needs to be adjusted.
弗里斯兰种马必须完成一项为期10周的种马登记簿审批测试（70天测试），该测试包括盛装舞步和驾车训练，以被认可为种用公马。对马匹在这个审批项目中的训练反应进行了评估。在70天测试前的9周（准备期）以及70天测试期间，记录了16匹种马（3.2±0.4岁）的外部工作量（EW）。在70天测试的第1周（SET-I）、第6周（SET-II）和第10周（SET-III）进行了骑乘室内标准化运动测试（SET），测量了马匹在慢步、快步和跑步时的心率（HR）和血浆乳酸浓度（LA）。使用线性混合效应模型分析与SET相关的HR和LA，以及与研究阶段相关的EW，使用赤池信息准则进行模型简化。与准备期相比，70天测试中的EW更高，训练课程持续时间更长。与SET-I相比，马匹在SET-II和SET-III中的跑步后HR和LA增加，表明它们更加疲劳。这些弗里斯兰种马在70天测试期间体能下降这一事实表明存在过度训练的情况。为了优化这些马匹的训练效果和福利，需要调整训练计划的工作量。
