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Fermented feed raises the nutritional content of yellow mealworms
The feeding of yellow mealworms with gemstones and microorganisms through fermentation is becoming a key focus as Tenebrio farming expands into a commercial industry. Traditional feeding methods, while still commonly used, are increasingly being questioned due to their limitations. Long-term use of single-component feeds not only affects the growth and reproductive capacity of mealworms but also reduces their nutritional value and flavor—factors that significantly impact the quality of feed for chickens, pigs, and other livestock. Just like how naturally raised animals differ in taste and market value from those raised in confinement, mealworms also show marked differences based on their diet. The more diverse and balanced the feed, the better the overall quality of the mealworms.
Wheat bran, rice bran, and corn have long been the staple ingredients in mealworm diets, but they are nutritionally limited. In reality, mealworms are omnivorous and can thrive on a wide range of materials as long as they contain essential nutrients and are physically suitable. Materials such as crop straw, sawdust, cottonseed hulls, bagasse, animal manure, mushroom growing media, and byproducts from brewing industries can all be used as potential feed sources. However, these materials often suffer from poor palatability and physical characteristics, making them unappealing to mealworms. To overcome this, a crucial step is fermentation.
Fermentation not only enhances the texture and aroma of the feed but also makes it more appealing to mealworms. For example, chicken manure, when mixed with straw and sawdust, and treated with a specialized microbial fermentation agent, can be transformed into a highly nutritious and suitable feed for Tenebrio molitor. The use of dedicated biological starter cultures significantly improves various aspects of the feed, including its appearance, smell, taste, texture, and nutritional profile. This process saves time and labor—some products can complete fermentation in just two days, while others take three to five days. Cost savings are also substantial, with fermentation additives costing only 1 to several cents per kilogram.
Moreover, the process is safe, eco-friendly, and widely adopted by farmers. However, it's important to use high-quality microbial starters to ensure improved palatability and effective elimination of pathogens and parasites. The Jinbao special biological fermentation agent, also known as an organic material decomposing agent or microbial fermentation agent, is developed through advanced biotechnology, including cultivation, purification, and rejuvenation. It contains a complex mix of beneficial microbes such as bacteria, fungi, yeast, and actinomycetes, which play a vital role in breaking down agricultural and farm waste into usable feed or fertilizer.
This technology allows for the efficient reuse of aquaculture and agricultural waste, reducing costs and turning what was once considered trash into valuable resources. After special fermentation, the protein content of the feed becomes more digestible and appetizing, leading to increased feed intake by mealworms and ultimately higher economic returns for farmers.