To study the long-term breeding-breeding and Wolffia split layers to increase productivity more space per unit of Wolffia. 2. trial production performance the Wolffia is utilized to improve the color quality of ornamental fish.
To study the long-term and animal feed Wolffia stratified to increase the yield per unit area, the more Wolffia 2. Experiments yield Wolffia is utilized to improve the color quality of the fish.
To study the long-term Wolffia farming and raising a layer to increase yield per unit area Wolffia more 2.? The yield was Wolffia to use in improving the quality of the color of the fish.