种植或利用青绿饲料养鱼可以扩大饲料来源,降低生产成本,提高产品质量,增加经济效益。一般利用青绿饲料养鱼可节约精料50%以上。1.饲料品种选择选择青绿饲料养鱼应注意:一要适口性好。饲料品种必须为鱼类喜欢采食;二要生长期长,可长年供应。一般可将多年生青绿饲料与一年生青绿饲料结合种植,多 Planting or using green fodder for fish farming can expand the sources of feed, reduce production costs, improve product quality and increase economic benefits. General green feed fodder can save more than 50% concentrate. 1. Feed Variety Selection Green feed fodder should pay attention to: a good palatability. Forage varieties must be fishes like to feed; Second, long-term growth can be long-term supply. Generally green perennial feed can be combined with the annual green feed, more