养鳟场地的选择1.水源虹鳟养殖场地的选择,首先,要具备丰富、洁净的冷水,水源为泉水、河水均可。场地要选在上游水草茂盛、宜于水生昆虫繁殖和鱼类栖息处。使用河水时,要先调查好一年间的水量、水温变化等情况。其次,要注意场地上游和附近是否有造成水质污染的工厂,有关城市的废水中是否有农药和其它 The choice of stocking trout 1. Water Rainbow trout breeding sites choice, first of all, to have rich, clean cold water, water springs, rivers can be. Venues to choose in the upper stream lush, suitable for aquatic insect breeding and fish habitat. When using river water, we must first investigate the situation of water quantity and water temperature change in a year. Second, we should pay attention to the upstream and the vicinity of the site whether there is water pollution caused by the factory, the city’s wastewater whether pesticides and other