White shrimp, Penaeus vannamei. (Photo: Stock File)
Biotechnology developed for white shrimp fattening
Tuesday, October 15, 2013, 23:40 (GMT + 9)
A team of scientists from the National Fisheries Institute (Inapesca) is working on the development of Pacific white shrimp (Penaeus vannamei) fattening technology in sea cages.
The project, carried out in Barra de Navidad Lagoon, in Jalisco, has as a main objective the promotion of sea farming.
During the first stage of the initiative, specialists of the Regional Centre of Fisheries Research of Inapesca in Manzanillo (Colima) and of central offices, in coordination with local producers, stocked 245,000 post-larvae in circular cages installed in the waters of the lagoon.
As reported by the Secretariat of Agriculture, Livestock, Rural Development, Fisheries and Food (Sagarpa), the farming cycle lasted three months. During this period, the specimens reached an average weight of between 8.44 and 12.68 grams and a first harvest of 1.2 tonnes of the crustacean was achieved.
In the course of the project, the producers received technical advice from Inapesca during the tracking phase of white shrimp fattening, which included constant monitoring of weight and height; the assessment of physicochemical parameters (oxygen levels, temperature, salinity and suspended solids) and setting the feeding rate, among others.
Inapesca scientists will monitor the progress of this initiative until the consolidation of the technology package, which is expected to become an important support for producers.
Besides, the obtained data are expected to be useful for the future development of shrimp farming work and the performance of scheduled screenings on farming systems that are similar in other regions.
White shrimp farming in cage systems represents a business opportunity for coastal fishermen because it has a lower investment cost and on a short time can be capitalized, stresses Sagarpa.
By Analia Murias