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Environmental enrichment techniques and tryptophan supplementation used to improve the quality of life and animal welfare of Nile tilapia
Aquaculture Reports ( IF 3.7 ) Pub Date : 2020-05-08 , DOI: 10.1016/j.aqrep.2020.100354
João Favero Neto , Percilia Cardoso Giaquinto

The adoption of high standards of animal welfare improves the quality of life for animals being reared and produces improved end products for consumers. In this study, we investigate the role of environmental enrichment and tryptophan supplementation in increasing animal welfare indices in tilapia. To do this, the environment where fish are reared is enriched using artificial aquatic plants and shelters, and their diet is supplemented with tryptophan. Animal welfare parameters are estimated and compared to verify this enrichment. The use of environmental enrichment and tryptophan supplements significantly influences the parameters of animal welfare in Nile tilapia, indicating their preference for enriched environments by reducing stereotypical and aggressive behavior. We emphasize the contribution that this study has in applying the concept of animal welfare in fish production, given that the simple and low cost enrichments used had a positive impact on the quality of life of the animals.



中文翻译:

环境浓缩技术和色氨酸补充剂用于改善尼罗罗非鱼的生活质量和动物福利

高标准动物福利的采用提高了被饲养动物的生活质量,并为消费者生产了改良的最终产品。在这项研究中,我们调查了环境丰富和色氨酸补充在增加罗非鱼动物福利指数中的作用。为此,使用人工水生植物和庇护所丰富了养鱼的环境,并在其饮食中添加了色氨酸。估计并比较动物福利参数,以验证这种丰富性。使用环境富集和色氨酸补充剂会显着影响尼罗罗非鱼的动物福利参数,表明它们通过减少刻板印象和攻击性行为而偏爱丰富的环境。

更新日期:2020-05-08
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