Directly increasing rotifers in ponds is an effective way to solve the problem of opening the bait, reduce production costs, and increase the survival rate of fry.
Drainage Clear pond rotifers re-germinate on resting eggs in the sediment. It has been determined that there are more than 10 million rotifer dormant eggs per cubic meter of sediment in the ponds of fishery fertilizers, which are the "seeds" for the reproduction of rotifers of the year. Drainage can increase the heat of the dormant eggs in the sediment. Clear ponds can clear the rotifer's predators. The replacement of fresh water itself is a benign stimulus to dormant eggs.
The application of organic manure tests showed that the input of 26 kilograms of cow dung or human excreta per 667 square meters of pond can meet the food needs of rotifers.
Control of predators soon after the occurrence of rotifers in ponds, leeches also began to emerge, because both feed on bacteria, decay, and algae, and the filter capacity of leeches is stronger than that of rotifers. If there are many otters, the Insects are suppressed due to lack of food. Kill leeches with appropriate agents and retain rotifers.
When fresh water is added, the rotifer breeding rapidly when the environmental conditions are appropriate, and 1-2 days after reaching the peak, it is prone to lack of oxygen, so new water should be added.
Electric Under Blanket is a specific type of Electric Blanket, usually used in European countries. It is placed below the bottom bed sheet, but cannot be above the bed sheet or over human body.
It normally has 3 to 4 heat settings as option. Consumers can choose their suitable temperature ranges.
Electric under blanket is normally used for sleeping, hence it normally shut off after 12 hours, or be turned off manually.
Below image as reference:
Electric Under Blanket
Electric Under Blankets, Heated Under Blanket, Electric Heated Blanket, Electric Blanket Safety
Ningbo JustLive Electrical Appliance Co., Ltd , https://www.makeheat.net