Health & Welfare
Oyster output affected by environmental features of farm site
In southern Brazil, management data for Pacific cupped oyster culture were assessed to characterize production in relation to environmental parameters.
Intelligence
The authors conducted research to improve the uptake of mussel seed in artificial collectors and optimize the amount of seed used in mussel farming.
Health & Welfare
In southern Brazil, management data for Pacific cupped oyster culture were assessed to characterize production in relation to environmental parameters.
Responsibility
Cage aquaculture in hydroelectric reservoirs has great potential for expansion in Brazil, but there are concerns of negative environmental impacts. Careful climate zoning can assist proper siting.
Health & Welfare
Intensive nursery systems are an extension of hatcheries to acclimate postlarvae to farm conditions and assess quality and health prior to pond stocking.
Health & Welfare
Much of Brazil’s expanding tilapia aquaculture takes place in floating cages with sturdy frames and nets made from plastic-coated steel or polypropylene.
Health & Welfare
Determining dietary requirements for tilapia requires precise formulation. Individual amino acids must be considered to establish well-balanced diets.
Intelligence
Shrimp farming in Brazil grew rapidly from the late 1990s to 2003. Brazil can again become a global leader, for it has 600,000 ha of suitable area with excellent natural conditions and infrastructure, and a large internal market.
Health & Welfare
Authors examined whether beta-glucans extracted from bakers yeast could improve the survival and growth of Pacific white shrimp challenged with infectious myonecrosis virus.
Health & Welfare
For two years of data, the effects of management, season, stocking density and salinity on the incidence of disease in northeastern Brazil’s shrimp farms were found to be highly significant.
Health & Welfare
Through a genetic selection program started in 2006, significant advances have been achieved in the development of a specific pathogen-free L. vannamei line in Brazil.
Health & Welfare
In Brazil, shrimp hybrids – crosses of imported specific pathogen-free lines and a genetically improved and locally adapted line – outperform their parents.
Intelligence
Work on the reproduction and larval rearing of southern Brazilian flounder supports the feasibility of flounder culture. Further research will improve weaning and grow-out techniques for the species.
Intelligence
Marine fish farming in Brazil appears promising. A new cobia research network will support industry growth through standardization, development of technology and training.
Health & Welfare
Combined analyses of SPF shrimp from six imported lines and one commercial genetically improved line in Brazil found excellent winter performance.
Responsibility
Freshwater fish culture is practiced in every state in Brazil, primarily at small-scale earthen pond facilities, but tilapia culture in reservoir cages is increasing.
Intelligence
Freshwater prawns are farmed in almost all states in Brazil, although the industry is concentrated in the southeast region, mainly the state of Espirito Santo.