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De Verdal, Hugues; O'Connell, Catherine Maeve; Mekkawy, Wagdy; Vandeputte, Marc; Chatain, Beatrice; Bégout, Marie-laure; Benzie, John A.h.. |
Given the strong effects of behavioural hierarchies on growth in many cultured species and the key role of feed efficiency in aquaculture economics, understanding the nature of the interaction of these variables is important for the sustainability of aquaculture. The relationship between agonistic behaviour, growth and feed efficiency in Nile tilapia, Oreochromis niloticus, was studied by rearing 120 fish in eight aquaria. Fish were video-recorded to estimate the occurrence of agonistic behaviour during a fasting and a refeeding period. Growth, feed intake and feed conversion efficiency (FCE - calculated as the inverse of feed conversion ratio (FCR)) were subsequently measured individually for each fish. Fish showed 58% less agonistic traits during the... |
Tipo: Text |
Palavras-chave: Agonstic behaviour; Feed efficiency; Nile tilapia; Performances; Correlation. |
Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00483/59495/62363.pdf |
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Mihailovic, Branko; Hamovic, Vladana; Parausic, Vesna. |
Today, more than ever, development of agriculture leans on science research results and their practical application. Research in the field of agriculture is conducted by large network of public institutions, institutes and universities are mostly directed toward improvement of production. Economical research, at the level of husbandry, market analysis, or analysis and estimations of economic policy is poorly developed. Profitability of agriculture and food industry should be improved and supported by adequate research and application of gained results. Experience acquired in research and education systems of post-communist countries can help these countries change their economy towards knowledge, innovations and new technologies. But, in spite of great... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Agro-economy; Cooperation; Performances; Competitiveness; Agribusiness; Community/Rural/Urban Development; International Development; Labor and Human Capital. |
Ano: 2009 |
URL: http://purl.umn.edu/57487 |
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