Replacement of fish by-products by alternative lipid sources supplemented with n3 LC-PUFAs in specific diets for marine fish species

• Grant number: 18/13000-2
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• Start date: November 01, 2018
• End date: July 31, 2019
• Field of knowledge: Agronomical Sciences - Fishery Resources and Fishery Engineering - Aquaculture
• Principal Investigator: Alexandre Wagner Silva Hilsdorf
• Grantee: Bruno Cavalheiro Araújo
• Supervisor: Maria Teresa Viana Castrillon
• Host Institution: Pró-Reitoria Acadêmica. Universidade de Mogi das Cruzes (UMC). Campus da Sede Mogi das Cruzes. Mogi das Cruzes , SP, Brazil
• Institution abroad: Universidad Autónoma de Baja California, Mexico
• Associated to the scholarship: 16/12435-0 - Influence of the temperature and diets with different DHA/ARA ratio in the transcriptome response, lipid metabolism and performance of cobia juveniles (Rachycentron canadum), BP.PD

Abstract

Marine fish is highly dependent of long-chain polyunsaturated fatty acids (LC-PUFAs), especially docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). The main source used to supply this requirement in marine species normally comes from fish by-products like fish oil. The reliance on fish oil could be considered a limiting factor to the industry expansion in Brazil since the cost of this ingredient is extremely high, the production is unstable and the nutritional quality is highly variable. Several studies performed with commercial fish species showed feasibility in the replacement of fish oil by alternative ingredients such as vegetable oils and terrestrial animal fats, without an impact in the growth. However, the lipid metabolism and mainly the muscle fatty acid composition are negatively impacted due to the marked reduction of DHA and EPA levels. Some multinational companies are investing to develop ingredients with high concentration of these important fatty acids, normally using oils and meal produced from marine algae species. However, the production cost of these ingredients could be considered high, making it impossible to fully replace fish oil. Before the investment in such alternative ingredients it is essential to know more about the basic physiology of the target species to produce specific and low-cost diets. Thus, this proposal aims to test specific diets for marine fish species, especially California Yellowtail, using low-cost and highly produced lipids sources, supplemented with DHA and EPA rich products from marine algae species. The alternative lipid ingredients that will be tested in this project are highly produced not only in Mexico but also in Brazil, so the techniques, processes and results can be directly applied to the national aquaculture sector. (AU)

Scientific publications

(4)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

ARAUJO, BRUNO CAVALHEIRO; FLORES-GALVEZ, KRISHNA; HONJI, RENATO MASSAAKI; MAGALHAES BARBOSA, VITALINA; TERESA VIANA, MARIA; TINAJERO, AURORA; ANTONIO MATA-SOTRES, JOSE. Arachidonic acid effects on the overall performance, fatty acid profile, hepatopancreas morphology and lipid-relevant genes in Litopenaeus vannamei juveniles. Aquaculture, v. 523, JUN 30 2020. (17/06765-0, 18/13000-2)

ARAUJO, BRUNO CAVALHEIRO; SKRZYNSKA, ARLETA KRYSTYNA; MARQUES, VICTOR HUGO; TINAJERO, AURORA; DEL RIO-ZARAGOZA, OSCAR BASILIO; VIANA, MARIA TERESA; MATA-SOTRES, JOSE ANTONIO. Dietary Arachidonic Acid (20:4n-6) Levels and Its Effect on Growth Performance, Fatty Acid Profile, Gene Expression for Lipid Metabolism, and Health Status of Juvenile California Yellowtail (Seriola dorsalis). FISHES, v. 7, n. 4, p. 17-pg., 2022-08-01. (18/13000-2)

ARAUJO, BRUNO CAVALHEIRO; RODRIGUEZ, MARLENE; HONJI, RENATO MASSAAKI; ROMBENSO, ARTUR NISHIOKA; DEL RIO-ZARAGOZA, OSCAR BASILIO; CANO, ABRAHAM; TINAJERO, AURORA; MATA-SOTRES, JOSE ANTONIO; VIANA, MARIA TERESA. Arachidonic acid modulated lipid metabolism and improved productive performance of striped bass (Morone saxatilis) juvenile under sub- to optimal temperatures. Aquaculture, v. 530, JAN 15 2021. (18/13000-2, 17/06765-0)

ARAUJO, BRUNO CAVALHEIRO; ANTONIO MATA-SOTRES, JOSE; TERESA VIAN, MARIA; TINAJERO, AURORA; BRAGA, ANDRE. Fish oil-free diets for Pacific white shrimp Litopenaeus vannamei: The effects of DHA-EPA supplementation on juvenile growth performance and muscle fatty acid profile. Aquaculture, v. 511, SEP 15 2019. (18/13000-2)