Feed Components and Timing to Improve the Feed Conversion Ratio for Sustainable Aquaculture Using Starch
Hideaki Shima1, Taiga Asakura1, Kenji Sakata1
1RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Kanagawa, Japan.
International Journal of Molecular Sciences
|July 27, 2024
Summary
Sustainable aquaculture feed can be improved using terrestrial plant starch for carnivorous fish like leopard coral grouper. This research identifies key growth factors and carbohydrate timing for enhanced fish farming and food security.
Area of Science:
- Aquaculture and Marine Biology
- Animal Nutrition
- Sustainable Food Production
Background:
- Aquaculture is vital for food security, marine conservation, and economic growth.
- Replacing fish meal with plant derivatives in aquaculture feed can reduce costs.
- Carnivorous fish often struggle with plant-based diets, requiring research into essential growth factors and feed components.
Purpose of the Study:
- To identify essential growth factors for leopard coral grouper (P. leopardus).
- To determine the optimal intake timing of nutrients from feed for P. leopardus.
- To evaluate the potential of terrestrial plant-derived starch in artificial diets for carnivorous fish.
Main Methods:
- Focused on the carnivorous leopard coral grouper (P. leopardus).
- Investigated essential growth factors and nutrient intake timing.
- Assessed the functionality of starch as a dietary component.
Main Results:
- Carbohydrates, previously not considered essential for carnivorous fish, can form a significant part of artificial diets.
- Starch, derived from terrestrial plants, shows potential for use in aquaculture feed.
- The study identified key factors influencing carnivorous fish growth.
Conclusions:
- Artificial feed development using starch can enhance the growth of carnivorous fish in aquaculture.
- This research supports the sustainable use of terrestrial plant derivatives in aquaculture feed.
- Findings contribute to cost-effective and sustainable aquaculture practices.
Related Concept Videos
Upstream Processing
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
Production of Alcohol
Continuous fermentation is a key strategy in industrial ethanol production, particularly when efficiency, scalability, and high yields are essential. This approach allows for uninterrupted operation and optimized resource utilization. The primary feedstock, corn starch, undergoes enzymatic hydrolysis facilitated by α-amylase and glucoamylase. These enzymes break down the starch into fermentable sugars such as glucose, which are readily assimilated by fermentative microorganisms.Fermentation...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
Biofuels
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...


