Trevisan Chiara, Johansen Maria Vang, Mkupasi Ernatus Martin, Ngowi Helena Aminel, Forkman Björn
Department of Veterinary and Animal Sciences, University of Copenhagen, Dyrlægevej 100, 1870 Frederiksberg C, Denmark.
Department of Veterinary Medicine and Public Health, Sokoine University of Agriculture, P.O. Box 3021, Morogoro, Tanzania.
Vet Parasitol. 2017 Feb 15;235:69-74. doi: 10.1016/j.vetpar.2017.01.008. Epub 2017 Jan 16.
Neurocysticercosis (NCC) is a disease caused by the zoonotic parasite Taenia solium lodging in the central nervous system. Both humans and pigs can get NCC. The impact of the disease in pigs has so far been little explored. The aim of this study was to describe the effect of NCC on social and feeding behaviours as well as the pattern of activity as indicators of reduced welfare in naturally infected sows. In total 13 T. solium naturally infected and 15 non-infected control sows were videotaped for 2 consecutive weeks using close circuit television cameras at research facilities at Sokoine University of Agriculture, Morogoro, Tanzania. Videos were analysed at the beginning, in the middle and at the end of the 2 week recording period. For each time point, videos were analysed during feeding, while the enrichment was provided, and by recording every half an hour the sows' behaviours performed over the course of a whole day. Sows with NCC spent significantly less time at the feeding trough, especially during the second half of the feeding period. Infected sows were also more passive e.g. lying and standing still significantly more during a whole day period and showed social isolation compared to non-infected control sows by performing behaviours more distant to their nearest neighbour. Results of this study indicated that NCC changed the behaviour of infected sows. The behavioural changes are indicative of decreased welfare. Efforts to reinforce the animal welfare aspect are needed as this has so far been neglected.
神经囊尾蚴病（NCC）是一种由人畜共患寄生虫猪带绦虫寄生于中枢神经系统引起的疾病。人和猪都可能感染NCC。迄今为止，该病对猪的影响鲜有研究。本研究的目的是描述NCC对自然感染母猪的社交和采食行为以及活动模式的影响，以此作为福利降低的指标。在坦桑尼亚莫罗戈罗索科因大学的研究设施中，使用闭路电视摄像机对总共13头自然感染猪带绦虫的母猪和15头未感染的对照母猪连续录像2周。在2周记录期的开始、中间和结束时对视频进行分析。对于每个时间点，在喂食期间、提供丰富环境时以及通过每半小时记录母猪在一整天中的行为表现来分析视频。感染NCC的母猪在食槽处花费的时间明显更少，尤其是在喂食期的后半段。与未感染的对照母猪相比，感染母猪也更消极，例如在一整天中躺卧和静止站立的时间明显更多，并且通过表现出与其最近邻居距离更远的行为而表现出社交隔离。本研究结果表明，NCC改变了感染母猪的行为。这些行为变化表明福利下降。由于迄今为止动物福利方面一直被忽视，因此需要加强这方面的工作。
