Qualitative Behavioral Assessment in Juvenile Farmed Atlantic Salmon (Salmo salar): Potential for On-Farm Welfare Assessment.
Qualitative Behavioral Assessment in Juvenile Farmed Atlantic Salmon (Salmo salar): Potential for On-Farm Welfare Assessment.
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DOI：
10.3389/fvets.2021.702783
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发表时间：
2021
影响因子：
3.2
通讯作者：
Wemelsfelder F
中科院分区：
文献类型：
--
作者：
Jarvis S;Ellis MA;Turnbull JF;Rey Planellas S;Wemelsfelder F
越来越多的科学和立法共识认为，鱼是有知觉的，因此有能力经历痛苦和苦难。由于水生环境和饲养在一起的动物数量，对养殖鱼类福利的评估具有挑战性。然而，随着全球水产养殖产量的增加和集约化，开发适用于水生环境的有效工具以评估养殖鱼类的情感体验和福利的动力更大。因此，本研究的目的是调查使用定性行为评估（QBA），最初开发的陆地养殖动物，在养殖鲑鱼，并评估其作为福利监测工具的潜力。QBA是一种“整体动物”方法，基于对动物动态行为风格的表达品质的描述和量化，使用诸如放松、激动、嗜睡或自信等描述符。20个定性描述符的列表中产生的养鱼户观看视频片段后，在这种情况下，鲑鱼的全部剧目的行为表达的代表。一个单独的，非经验丰富的10名观察员随后观看了25个视频剪辑的养殖鲑鱼，并得分的20个描述符为每个剪辑使用视觉模拟量表（VAS）。为了评估观察者内的可靠性，每个观察者在相隔10天的两次会议上观看了两次相同的25个视频剪辑，第二个剪辑集以不同的顺序呈现。观察员不知道这两组录像片段是相同的。使用主成分（PC）分析（相关矩阵，无旋转）分析数据，揭示了四个维度，它们共同解释了视频片段之间79%的变化，其中PC 1（紧张/焦虑/紧张-平静/柔和/放松）解释了最大的变化百分比（56%）。PC 1是显示可接受的观察者间和观察者内可靠性的唯一维度，平均PC 1评分与相同25个视频片段测量的缓慢和不稳定的身体运动持续时间显著相关。进一步完善的方法可能是必要的，但这项研究是第一个提供证据的潜力，定性行为评估作为一个时间效率高的福利评估工具，幼鲑养殖条件下。
There is a growing scientific and legislative consensus that fish are sentient, and therefore have the capacity to experience pain and suffering. The assessment of the welfare of farmed fish is challenging due to the aquatic environment and the number of animals housed together. However, with increasing global production and intensification of aquaculture comes greater impetus for developing effective tools which are suitable for the aquatic environment to assess the emotional experience and welfare of farmed fish. This study therefore aimed to investigate the use of Qualitative Behavioral Assessment (QBA), originally developed for terrestrial farmed animals, in farmed salmon and evaluate its potential for use as a welfare monitoring tool. QBA is a “whole animal” approach based on the description and quantification of the expressive qualities of an animal's dynamic style of behaving, using descriptors such as relaxed, agitated, lethargic, or confident. A list of 20 qualitative descriptors was generated by fish farmers after viewing video-footage showing behavior expressions representative of the full repertoire of salmon in this context. A separate, non-experienced group of 10 observers subsequently watched 25 video clips of farmed salmon, and scored the 20 descriptors for each clip using a Visual Analog Scale (VAS). To assess intra-observer reliability each observer viewed the same 25 video clips twice, in two sessions 10 days apart, with the second clip set presented in a different order. The observers were unaware that the two sets of video clips were identical. Data were analyzed using Principal Component (PC) Analysis (correlation matrix, no rotation), revealing four dimensions that together explained 79% of the variation between video clips, with PC1 (Tense/anxious/skittish—Calm/mellow/relaxed) explaining the greatest percentage of variation (56%). PC1 was the only dimension to show acceptable inter- and intra-observer reliability, and mean PC1 scores correlated significantly to durations of slow and erratic physical movements measured for the same 25 video clips. Further refinements to the methodology may be necessary, but this study is the first to provide evidence for the potential of Qualitative Behavioral Assessment to serve as a time-efficient welfare assessment tool for juvenile salmon under farmed conditions.
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影响因子：
1.2
作者：
FLEISS, JL
通讯作者：
FLEISS, JL
DOI：
10.20506/rst.33.1.2286
发表时间：
2014-04-01
影响因子：
0.6
作者：
Huntingford, F. A.;Kadri, S.
通讯作者：
Kadri, S.
影响因子：
1.2
作者：
DePasquale, Cairsty;Sturgill, Jennifer;Braithwaite, Victoria A.
通讯作者：
Braithwaite, Victoria A.
影响因子：
2.3
作者：
Duncan, Ian J. H.
通讯作者：
Duncan, Ian J. H.
影响因子：
3
作者：
Mellor, David J.
通讯作者：
Mellor, David J.