Material selection and production for cage culture of Monopterus albus
The selection of cages for culture of Monopterus albus before culture is the key to avoid the use of toxic or harmful substances mesh made of wire, avoid the use of poor quality, rupture of the cage. Usually the cage used for Monopterus albus is made of nylon net. At present, there are two kinds of nets sold on the market: one is polyethylene, non-toxic, soft, resistant to sunlight and ice cream, durable; the other is polypropylene, toxic, hard, easy to aging, in the sun exposure, short service life. The following is an introduction to the selection and production of the cage.
There are three ways to buy polyethylene mesh:
First, pinch it by hand to see if it is soft.
The second is to use fire, if the burned glue can be as teardrops, and has a strong bonding ability, while hot can be drawn into a line of polyethylene. If the burned ashes, or bonding ability is small, while hot drawing line is not made of polypropylene or other raw materials;
Third, pull hard, take a wire mesh, pull with both hands, polyethylene wire tensile strength, elasticity. Polypropylene wire is brittle and brittle under tensile force.
At present, the existing market for the sale of cages, the best choice for purchase is 3-5 meters long, 2-2.5 meters wide, 1.2-1.5 meters high. The net cage requires close stitching, and there must be a thick wire around the box.
The selection and manufacture of net cage is the key factor of cultivating Monopterus albus. In order to keep eel well and avoid the farmers'mistakes in the process of rearing eel in net cages, it is very important to select and purchase net cages.
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