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Low dietary inclusion of nutraceuticals from microalgae improves feed efficiency and modifies intermediary metabolisms in gilthead sea bream (Sparus aurata)
- Source :
- Scientific Reports volume 10, Article number: 18676 (2020), RODIN: Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz, Universidad de Cádiz, Scientific Reports, Vol 10, Iss 1, Pp 1-14 (2020), RODIN. Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz, instname, Scientific Reports, Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP
- Publication Year :
- 2020
- Publisher :
- Nature Research, 2020.
-
Abstract
- The aim of this work was to evaluate two functional feeds for the gilthead seabream, Sparus aurata, containing low inclusion of two microalgae-based products (LB-GREENboost, LBGb; and LB-GUThealth, LBGh). Fish (12–13 g) were fed for 13 weeks a control diet or one of the four diets supplemented with both products at 0.5% or 1%. LBGb and LBGh did not affect specific growth rate or survival, but increased feed efficiency by decreasing feed intake and enlarging the intestines. LBGb increased hepatosomatic index and reduced cortisol levels in plasma, while both products lowered plasma lactate. Extensive metabolite and metabolic enzyme profiling revealed that microalgae supplementations, especially 1% LBGh: (i) decrease plasma lactate and increase hepatic glycogen, (ii) reduce hepatic gluconeogenesis, (iii) enhance hepatic lipogenic activity and lipid secretion, (iv) led fish to double triglyceride content in muscle and to stimulate its lipid oxidative capacity, and (v) increase the content of monounsaturated fatty acids and the omega-3 alpha-linolenic acid in muscle. This study demonstrates that both microalgae-based products are suited to improve feed efficiency and orchestrate significant changes in the intermediary metabolism in gilthead seabream juveniles.
- Subjects :
- 0301 basic medicine
Hepatic gluconeogenesis
Animal feed
Physiology
Metabolite
lcsh:Medicine
Aquaculture
Feed conversion ratio
Biochemistry
Article
03 medical and health sciences
chemistry.chemical_compound
Nutraceutical
Animal physiology
Microalgae
Animals
Food science
lcsh:Science
Cortisol level
Nutrition
Multidisciplinary
business.industry
lcsh:R
04 agricultural and veterinary sciences
Animal Feed
Sea Bream
Enzymes
Triglyceride content
030104 developmental biology
chemistry
Dietary Supplements
040102 fisheries
0401 agriculture, forestry, and fisheries
lcsh:Q
business
Ichthyology
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Scientific Reports volume 10, Article number: 18676 (2020), RODIN: Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz, Universidad de Cádiz, Scientific Reports, Vol 10, Iss 1, Pp 1-14 (2020), RODIN. Repositorio de Objetos de Docencia e Investigación de la Universidad de Cádiz, instname, Scientific Reports, Repositório Científico de Acesso Aberto de Portugal, Repositório Científico de Acesso Aberto de Portugal (RCAAP), instacron:RCAAP
- Accession number :
- edsair.doi.dedup.....cf41ca5231135ec33673aa5c64f21601