Feathers are 91% protein (mainly keratin), 8% water, and 1% fat. Keratin is similar in structure to human keratin and has extremely high bioavailability. However, the feathers produced in slaughterhouses are currently mainly made into feather meal by high-temperature and high-pressure cooking. The digestibility of this meal is only 40-60%, and the quality is unstable. It is difficult to use it in feed on a large scale and can only be added in small amounts to the feed of economic animals or even pets. Most of them eventually return to farmland and are buried without any higher-value utilization.
Taiwan Sugar Research Institute (TSRI) has found the pain point of this value chain. Without altering the existing industrial chain and the existing equipment of the processing plant, the addition of a single, simple reaction step incorporating specialized microorganisms can increase the digestion efficiency by over 85%, completely changing the quality and appearance of feather meal, and creating a new industrial value chain. Animal experiments have confirmed that in aquatic applications, it can be used as a growth promoter and replace 10 to 30% of fish meal protein; in the application of young livestock and poultry, it can be used as a high-quality protein and replace 20 to 50% of fermented soybean powder and fish meal protein. It is initially estimated that this technology can increase the output value of this industry in Taiwan by about 6.7 times, reaching NTD2.8 billion.