Introduction: The Need for Sustainable Aquaculture

Aquaculture has become a major global source of protein. However, with increasing demand for fish and seafood, the health of farmed species is a growing concern. High stocking densities in fish farming often lead to higher stress levels and disease outbreaks. Traditionally, antibiotics have been used to address these issues, but the shift toward sustainability and increased regulation are encouraging the search for natural, long-term solutions. Yeast β-glucan, a natural immunomodulator, is emerging as a key solution in sustainable aquaculture due to its immune-boosting properties.

What is Yeast β-Glucan?

β-glucans are polysaccharides found in the cell walls of fungi, bacteria, algae, and plants, with yeast-derived β-glucans being particularly bioactive. These carbohydrates activate the immune system by binding to receptors on white blood cells like macrophages and natural killer cells. This binding triggers immune functions such as phagocytosis, cytokine release (e.g., IL-1, IL-6), and the stimulation of new white blood cell production, enhancing the body’s defenses. Yeast β-glucan strengthens the innate immune system, making it an effective tool for protecting aquaculture species from bacterial, viral, and fungal infections.

Enhancing Aquaculture Health with Yeast β-Glucan

Extensive studies on yeast β-glucan have demonstrated its positive effects on fish immunity and disease resistance. This is especially crucial in salmon farming, where diseases like infectious salmon anemia (ISA) have caused significant losses. Research has shown that β-glucan enhances the immune response of salmon by increasing hydrogen peroxide production and boosting phagocytosis, improving their defense against bacterial infections. Beyond disease resistance, β-glucan has been found to support fish growth. A study on coho salmon indicated that β-glucan supplementation improved growth, feed intake, and protein efficiency, leading to healthier and faster-growing fish.

Sustainable Benefits of Yeast β-Glucan in Aquaculture

Yeast β-glucan offers multiple sustainable benefits. As a natural, antibiotic-free solution, it reduces the need for chemical interventions, aligning with global efforts to minimize antibiotic use in aquaculture. By improving immune responses, β-glucan helps reduce the environmental impacts of antibiotics, including resistance issues. It also aids in preserving biodiversity by preventing disease transmission between farmed and wild fish, which is particularly important in regions like Chile, where ISA has affected wild salmon populations.

Additionally, β-glucan enhances feed efficiency, minimizing food waste and optimizing resource consumption. Studies have shown that fish supplemented with β-glucan exhibit better feed conversion ratios, meaning they use more of the feed for growth, making aquaculture more sustainable.

Innovation for the Future: YeaBeta G70

YeaBeta G70 is a newly developed, highly purified form of yeast β-glucan, derived from specially fermented yeast cells. With at least 70% β-glucans, it ensures maximum bioactivity and effectiveness. Research has shown that YeaBeta G70 enhances immune defense, controls diseases, and improves production performance in aquaculture species. A recent study highlighted how YeaBeta G70 enhances intestinal immune function in cod salmon by regulating lipid metabolism and gut microbiota, further supporting fish health and growth.

Conclusion: A Natural Solution for the Future of Aquaculture

Yeast β-glucan is a powerful natural immunomodulator that plays a crucial role in sustainable aquaculture. Its ability to enhance immune responses, improve disease resistance, and support growth makes it an invaluable tool for the industry. The development of advanced products like YeaBeta G70 offers the potential for improved fish health, productivity, and sustainability. As global seafood demand continues to rise, integrating yeast β-glucan into aquaculture practices is a scientific breakthrough that promises a more sustainable and healthy future for food production systems.

About Angel Animal Nutrition

Fubon is a brand of Angel Animal Nutrition. Fubon is committed to developing natural, efficient microbial feed derived from yeast with Angel's leading technology in yeast industry, providing the best service solutions for the nutrition and health in animals. Angel Animal Nutrition creates value for global feed and animal agriculture customers through continuously upgraded products and professional services.

About Angel

Angel Yeast Company is a high-tech listed company specializing in yeast and biotech. Product business covers Yeast and Baking, Yeast Extract-Savoury, Nutrition & Health and Biotechnology fields. It is one of the world's leading companies in the yeast industry. Angel has 12 holding subsidiaries and provides products and services for more than 150 countries and regions.

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