Fish performance, nutrient digestibilities, and hepatic and intestinal morphologies in grouper Epinephelus fuscoguttatus fed fermented copra meal
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CitationMamauag, R. E. P., Ragaza, J. A., & Nacionales, T. (2019). Fish performance, nutrient digestibilities, and hepatic and intestinal morphologies in grouper Epinephelus fuscoguttatus fed fermented copra meal.
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Supporting ASEAN good aquaculture practices: Utilization of alternative protein sources for aquafeed to minimize pressure on fishery resources REP Mamauag -
Fish for the People, 2016 - Secretariat, Southeast Asian Fisheries Development CenterAquaculture industry of Southeast Asia has been expanding steadily as a result of an increasing demand of food fish in the region as well as in the global scale. Aside from its contribution to the world’s fisheries, the aquaculture industry creates employment opportunities and provides income for the region’s fish farmers, as well as produces fish which is a major component in the diets of peoples in Southeast Asia. However, the fast development of aquaculture had been viewed as threat to sustainable capture fisheries production as the widespread use of fish by-catch in aquaculture feeds results in overexploitation of the fishery resources and to certain extent degradation of the resources. Recognizing the importance and urgency of addressing such concern, the Senior Officials of the ASEAN Member States responsible for fisheries adopted in June 2011, the Plan of Action on Sustainable Fisheries for Food security for the ASEAN Region Towards 2020 which includes provision on the need to “improve the efficient use of aquatic feeds by strictly regulating the quality of manufactured feed and feed ingredients and support continued research for developing suitable alternative protein sources that will reduce dependence on fishmeal and other fish-based products.” Along with such declaration, the SEAFDEC Aquaculture Department has been enhancing its R&D activities aimed at finding alternatives to fishmeal as feed ingredients in aquaculture feed formulations.
Conference paperN Ishida, T Koshiishi, T Tsuzaki, S Yanagi, S Katayama, M Satoh & S Satoh - In MR Catacutan, RM Coloso & BO Acosta (Eds.), Development and Use of Alternative Dietary Ingredients or Fish Meal Substitutes in Aquaculture Feed Formulation … Ingredients or Fish Meal Substitutes in Aquaculture Feed Formulation, 9-11 December 2014, Nay Pyi Taw, Myanmar, 2015 - Aquaculture Department, Southeast Asian Fisheries Development CenterA non-fish meal diet using plant and/or animal protein materials for yellowtail, Seriola quinqueradiata was developed. Three kinds of non-fish meal diets and a control diet containing 50% fish meal were processed. In the non-fish meal diets, the fish meal was replaced with commercially available plant or animal materials and supplemented with taurine and other ingredients for maintaining palatability. These diets were fed to one year old yellowtail (body weight: 753±96 g) in net cages. No significant differences in growth, daily weight gain, daily feed rate, feed conversion ratio and protein efficiency ratio were observed among fish given the diets. Non-fish meal diets were processed in a factory and their biological characteristics were studied such as uptake, stomach evacuation rate, and disease resistance. In addition, the diet palatability of each substitute protein source for fish was examined and ingredients that enhanced palatability of the non-fish meal diets were identified. Non-fish meal diets have the potential to support the growth of one year old yellowtail.
Conference paperMB Teruel & B Glencross - In MR Catacutan, RM Coloso & BO Acosta (Eds.), Development and Use of Alternative Dietary Ingredients or Fish Meal Substitutes in Aquaculture Feed Formulation … Ingredients or Fish Meal Substitutes in Aquaculture Feed Formulation, 9-11 December 2014, Nay Pyi Taw, Myanmar, 2015 - Aquaculture Department, Southeast Asian Fisheries Development CenterFish meal and fish oil have been used worldwide in aquaculture feed formulations. Production of these ingredients has been relatively constant for decades. However, supplies of industrial fisheries are limited, and unlikely to be able to support increasing demand for these products for a growing aquaculture industry. Finding alternative ingredients therefore, is necessary to address the long-term sustainable growth of aquaculture globally, thereby meeting projected increases in consumer demand for safe, high quality farmed aquatic food. Potential alternative ingredients have been identified, mostly coming from plant-derived nutrient sources, such as seeds, grains, leaves and other agricultural by-products. The use of these alternative ingredients however, may cause anti-nutrient inclusion in the feedstuffs that may interfere with feed utilization and affect the health and production of farmed aquatic products. To get rid of these anti-nutrients, and at the same time improve their nutritive value, various processing techniques (e.g. soaking, moist/dry heat treatment, chemical treatment, dehulling, fermentation), among others may be applied to these ingredients prior to use. Specific obstacles to the use of these ingredients will be the type of treatment, processing procedures and methods required to enhance the nutritive value of the product. Proper evaluation of processed feed ingredients in consideration of factors such as ingredient characterization and functionality, digestibility, palatability, nutrient utilization and/or interference of utilization, influence on immune status and organoleptic qualities, and economic viability need to be done to support their potential effective use in diet formulation. These alternative feed ingredients may offer sound potential when used in the right application. The priorities and future directions of feed manufacturing and researches on alternative feed ingredients with application of proper processing procedures are discussed in this report. The correct use of alternative ingredients with proper application of the right processing techniques may confer significant nutritional and technical advantages to the feed design and management process and may result in high quality feeds for healthy sustainable aquaculture.