The so-called "grass raising chickens" refers to the use of green fodder as the main breeding chicken, that is, in the mix of chicken diets, to reasonably increase the proportion of green fodder, and accordingly reduce the proportion of food and oil processing by-products, reduce costs, and increase economic efficiency. . The specific method is: First, shred the potato vine or tender grass, add 0.5% salt to seal the silage into the pit, or seal it in the tank. Silage is best. The time is at least 15 days. If it is urgently used, it can be cut into the cylinder for 3 days and then taken out for use. The yeast species are then activated and the species used should be Candida tropicalis. Soak the strains with warm water (approximately 30°C), and then mix the water with wheat flour (not too thin or too dry) and leave at 30°C for 4 hours. Silage (or green feed for more than 3 days) and mixed concentrates are mixed together at a ratio of 1:1, and then the activated yeast is poured into mix and put into a cylinder for fermentation for 24 hours (usually the winter time is longer (Summer time is shorter), you can feed the chicken with a scent of wine. It should be noted that fishmeal and peanut cake should not be mixed and fermented. In the first few days, chickens are not accustomed to eating, but after a few days they will be very fond of eating, and even pick one of them to eat. After feeding this kind of feed, the chicken has a strong appetite, no gastro-intestinal disease, very few vitamin deficiencies, rapid feather growth, and greatly improved chicken feed utilization. Xi'an complex bio-tech CO.,LTD. , https://www.complexpowder.com