1　苗种优不同种和质量的黄鳝生长快慢不一 ,快速养鳝应选择体色深黄、有大黑斑的笼捕鳝苗 ,且无病、无伤、无药害 ,体表粘液正常 ,反应敏感 ,挣逃力强。2　放养密度小苗种放养密度如果过大 ,个体间相互影响 ,养殖环境负荷大 ,就会直接和间接影响黄鳝生长速度。常规养殖 ,以每 A seed of different species of excellent quality and different growth of eel speed, quick-feeding eel should choose body color dark yellow, with large dark spots eel catching cage, and no disease, no injuries, no injury, the body surface mucus normal Responsive, earn strong escape. 2 stocking density seedling stocking density is too large, the interaction between individuals, breeding environmental load, it will directly and indirectly affect the growth rate of eel. Routine breeding to each