Zappaterra Martina, Menchetti Laura, Nanni Costa Leonardo, Padalino Barbara
Department of Agricultural and Food Sciences, University of Bologna, Viale Fanin 46, I-40127 Bologna, Italy.
Animals (Basel). 2021 Feb 11;11(2):480. doi: 10.3390/ani11020480.
This study aimed at documenting whether dromedary camels have a preference for shade and how their behavior would change depending on the presence of shade and variable space allowance. A total of 421 animals kept in 76 pens (66 with shelter (Group 1), and 10 without shelter (Group 2)) at the camel market in Doha (Qatar) were recorded for 1 min around 11:00 a.m. when the temperature was above 40 °C. The number of animals in the sun and shade and their behaviors were analyzed using an ad libitum sampling method and an ad hoc ethogram. The results of a chi-square test indicated that camels in Group 1 had a clear preference for shade ( < 0.001). The majority of Group 1 camels were indeed observed in the shade (312/421; 74.11%). These camels spent more time in recumbency and ruminating, while standing, walking, and self-grooming were more commonly expressed by the camels in the sun ( < 0.001). Moreover, locomotory stereotypic behaviors (i.e., pacing) increased as space allowance decreased ( = 0.002). Based on the findings of this pilot study, camels demonstrated a preference for shade; shade seemed to promote positive welfare, while overcrowding seemed to trigger stereotypy and poor welfare. Overall, our preliminary results are novel and provide evidence that shaded areas are of paramount importance for camel welfare. Further research, involving designed studies at multiple locations is needed to confirm these results.
本研究旨在记录单峰骆驼是否偏好阴凉处,以及它们的行为如何根据阴凉处的存在和不同的空间容量而变化。在卡塔尔多哈的骆驼市场,对76个围栏中的421只动物(66个有遮蔽物的围栏(第1组)和10个无遮蔽物的围栏(第2组))进行记录,记录时间为上午11点左右,当时气温高于40摄氏度,记录时长为1分钟。采用随意抽样法和特制的行为图谱,对处于阳光下和阴凉处的动物数量及其行为进行分析。卡方检验结果表明,第1组骆驼明显偏好阴凉处(<0.001)。实际上,观察到第1组的大多数骆驼处于阴凉处(312/421;74.11%)。这些骆驼躺卧和反刍的时间更多,而站立、行走和自我梳理行为在阳光下的骆驼中更为常见(<0.001)。此外,随着空间容量的减少,运动性刻板行为(即踱步)增加(=0.002)。基于这项初步研究的结果,骆驼表现出对阴凉处的偏好;阴凉处似乎能促进良好的福利,而过度拥挤似乎会引发刻板行为和不良福利。总体而言,我们的初步结果具有创新性,并提供了证据表明阴凉区域对骆驼福利至关重要。需要进一步开展研究,包括在多个地点进行的设计研究,以证实这些结果。