The common octopus, Octopus vulgaris. (Photo: Albert Kok)
Advances in development of feed for octopus
Monday, July 01, 2013, 23:30 (GMT + 9)
The Ministry of Agriculture and Water Supply of Murcia announced that progress has been made in researching projects to obtain a suitable formulated diet for the common octopus (Octopus vulgaris) fattening on an industrial scale.
This diet is expected to provide maximum yield in terms of growth and feed transformation, and to ensure minimal waste production and to maintain farm profitability.
The director of the Research and Agricultural and Food Development Institute in Murcia (Imida), Adrian Martinez, noted that the common octopus "is a species that has aroused great interest in the field of aquaculture, since it is an excellent candidate for the development of its commercial-scale production."
Currently, two aspects limit octopus farming at industrial level: the mass production of juvenile specimens to start the fattening phase and the availability of a kind of formulated feed that enables high production yields.
The Marine Aquaculture Equipment of the Imida has been working on the second aspect for 10 years.
As part of her doctoral dissertation at the Faculty of Chemistry of the University of Murcia, Maria Piedad Sanchez Morillo-Velarde mentioned the development of assays on diets to estimate the energy contribution of lipids and carbohydrates, which are the cheapest feed components. Trials have also been performed on the acceptability of many vegetable and animal raw materials and on the different formats such as frozen products, fishmeal, frozen dried and dehydrated products, among others.
The projects of the thesis, which was published in scientific worldwide journals having impact in the aquaculture field, will help meet the nutritional needs of the common octopus.
In addition, they represent a major step in research to get a suitable formulated diet for fattening at industrial scale, reported the Ministry of Agriculture and Water Supply.
The projects that make up the thesis were conducted at the Marine Aquaculture Station of Imida, in the port of San Pedro del Pinatar. They were funded by the National Plans for Aquaculture Projects of the National Advisory Board for Marine Aquaculture (Jacumar) and of the Ministry of Agriculture and Water Supply.
By Analia Murias