The Fisheries Research Institute in Taiwan has developed a yogurt that helps improve the growth and immune system of shrimp and fish, and aids in fighting diseases. The yogurt is made with a natural probiotic called 'B4 lactic acid bacteria' extracted from bass, and contains a prebiotic called glucan. Feeding the yogurt to tilapia for two months resulted in healthier and larger fish, with an additional income of NT$150,000 per hectare for farmers. The institute has transferred the technology to four probiotics companies and has applied for a patent for the use of the yogurt in feeds.