Thank you sponsors and participants for making TARS 2019 such a huge success! Get ready for TARS 2020 (Shrimp Aquaculture) taking place on August 19-20. Mark your calendars!

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Aquafeeds: Fit for Future

 August 14-15, 2019      Bali, Indonesia
Thank you sponsors and participants for making TARS 2019 such a huge success! Get ready for TARS 2020 (Shrimp Aquaculture) taking place on August 19-20. Mark your calendars!

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Creating value for fish feeds

Orapint Jintasataporn, Associate Professor, Faculty of Fisheries, Kasetsart University, Thailand

The current status of information on nutrient requirements for marine fish and freshwater fish has changed considerably because of changes in the inclusion rates of raw materials. Most research studies on reducing inclusion rates of fishmeal in diets for commercial fish and shrimp species use plant protein source. Hence, the requirements of protein, amino acids, lipid, fatty acids, minerals especially trace minerals, Zn, Cu, Mn, Se, are revised and many feed additives are applied to meet the animal nutritional requirements.

To move to species-specific feeds, functional feed, with the addition of some feed additives is one area that most researchers focus on. In Asian fish and shrimp species, an important focus is on additives to replace antibiotic to control diseases especially in white shrimp, Asian seabass and tilapia. Recombinant protein in terms of an antibacterial or antivirus peptide is the feed additive being investigated. Another focus is on peptide for a specific pathogen, i.e. an oral vaccine or feed vaccine for shrimp. There is also interest on inducing monosex in fish, tilapia or shrimp. As we know, the giant freshwater prawn is a favourite and premium prawn where the male prawn grows faster than females. As such, many research techniques to manipulate sex reversal or monosex in freshwater prawn are being studied. Supplemental recombinant protein in terms of hormone-like structure or peptide is being tested.

Today, there are not only feed additives for specific species but also additives with specific purpose, such as meat quality, immune stimulation, nutrient enrichment fillet that are being studied. In addition, the research is on feed cost per kilogram production and per kilogram fillet as well as models used for feed technology research.

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