The images of three diseases of black spot, anthracnose and leaf blight in Sichuan Ophiopogon japonicus leaves were take......

本文探讨了配合饲料中不同蛋白质含量对鲈鱼（Ｌａｔｅｏｌａｂｒａｘｊａｐｏｎｉｃｕｓ）生长的影响。试验设五组，配合饲料组的蛋白质梯度分别为３２．４０％、３８．４６％、４３．３０％和４９．２５％，对照组投喂冰冻的科鱼类。......