In 2009 the European Commission approved the Regulation n° 710/2009 on organic aquaculture. Healthy, fresh and local alternative are the key traits of the near future aquaculture development (EU initiative http://ec.europa.eu/fisheries/inseparable/) and the issue of farmed fish welfare is pivotal for both a sustainable aquaculture and compliance with the organic principles. Welfare conditions can support increased immune competence, increased ability to react to stress conditions, best performance in terms of growth, and flesh quality in farmed fish (Lembo et al., 2011). In the European Regulation, stocking density is considered an appropriate fish welfare indicator. This is viewed in a holistic perspective including also aspects and indicators related to good environmental conditions, water and feeding quality, level of domestication, etc. It is still quite controversial what is the threshold limit of density to preserve the actual conditions of welfare on farms. The purpose of this study was to assess the welfare conditions of rainbow trout (Oncorhynchus mykiss) reared at two stocking densities and fed with organic food.
INFLUENCE OF DENSITY ON THE WELFARE OF RAINBOW TROUT Oncorhynchus mykiss IN ORGANIC AQUACULTURE
F Gai;
2014
Abstract
In 2009 the European Commission approved the Regulation n° 710/2009 on organic aquaculture. Healthy, fresh and local alternative are the key traits of the near future aquaculture development (EU initiative http://ec.europa.eu/fisheries/inseparable/) and the issue of farmed fish welfare is pivotal for both a sustainable aquaculture and compliance with the organic principles. Welfare conditions can support increased immune competence, increased ability to react to stress conditions, best performance in terms of growth, and flesh quality in farmed fish (Lembo et al., 2011). In the European Regulation, stocking density is considered an appropriate fish welfare indicator. This is viewed in a holistic perspective including also aspects and indicators related to good environmental conditions, water and feeding quality, level of domestication, etc. It is still quite controversial what is the threshold limit of density to preserve the actual conditions of welfare on farms. The purpose of this study was to assess the welfare conditions of rainbow trout (Oncorhynchus mykiss) reared at two stocking densities and fed with organic food.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
