沼气肥是养鱼的优质饵料,利用沼气肥养鱼,能节约大量精饵料,减少环境污染,一是能使池塘水质变肥,水质能经常保持有利于鱼类生长发育的水平,二是能保持池水处于中性状态,三是有利于预防鱼病,大大提高鱼类养殖产量。(一)用沼气肥养鱼的优点1.鱼病少:人、畜粪便进入沼气池发酵,其? Biogas fertilizer is a high-quality fish food, the use of biogas fertilizer fish, can save a lot of fine feed, reduce environmental pollution, one can make the pond water quality become fat, water quality can often maintain the level of fish growth and development, the second is to Keep the water in a neutral state, the third is to prevent fish disease, greatly improving fish production. (A) the advantages of using biogas fertilizer fish 1. Fish disease less: people, livestock excrement into the digester fermentation, which?