Marine fish culture is still in its infancy in Brazil. For several years the snook Centropomus parallelus and the flounder Paralicithys orbignyanus were considered for aquaculture, but their commercial application has not yet been achieved. However, once technology for culture of cobia Rachycentron canadum became available, several private companies showed interest for marine fish culture. Besides traditional rearing technologes, cobia is suitable for open ocean culture in cages. This species shows fast growth rates, fish can achieve 4 or 8 […]

Although fish nutrition science is far from establishing general standards of nutritional requirements, the need for developing low impact feeds has long been included in the agenda of aquaculture’s international scientific and business communities of. Not only is absolutely possible to formulate environmental friendly feeds, as it is necessary modeling the formulation of these feeds. However, it is necessary higher accuracy to develop species-specific formulations, considering interactions of the biology and nutritional physiology of the species with the feedstuffs and […]

Corn replacement with triticale in Nile tilapia diets was assessed. The fish were submitted to a performance test in a system of aquariums (50 L) with controlled temperature and water recirculation. Fingerlings weighing from 1.7 ± 0.08 g were stocked in 30 aquaria in a randomized complete block with five replacement levels (0.0, 25.0, 50.0, 70.0 and 100.0%) of corn with triticale and six replications. The performance parameters analyzed were: survival, weight gain, apparent feed conversion, feed intake, cost, hepato-somatic […]

The influence of feeding frequency was evaluated on weight gain, specific growth rate, feed conversion and survival of jundiá juveniles. Twelve groups of 280 fish (7.47 ± 1.73 g) were each stocked in twelve ponds (2 fish/m2) and fed to apparent satiety an extruded commercial feed containing 42% CP In four feeding schedules: 1, 2, 3 and 4 times a day, in triplicate, for 120 days (May to September, 2003). Average weight gain was recorded by sampling 10% of the […]