How to identify and buy healthy fish fry

Agriculture and fishermen said: “Fish must be strong, and fish farming can be prosperous.” Practice has shown that only by purchasing fish stocks that are strong enough to be able to ensure high survival rate, rapid growth, increased yield, and high income, their method of identifying fry is robust: First, mouth blowing observation method: the fry into the basin, with the mouth to blow the surface of the water, where the wind can swim against the water for the healthy fish fry; if not the top water, can only drift with the flow of the weak fry. Second, pour the water to observe the law: the fish fry in the pot, slowly poured down the water, where the pelvic floor is strongly struggling, the head and tail bent into a circle for the healthy fry; if affixed to the pelvic floor, struggling weak, only head and tail Those who can wiggle slightly are weak fry. Third, the vortex observation method: the fry into water tanks, buckets or fish, stir the water, make it whirlpool. Those who can swim against the water at the edge are healthy fish fry; if they are whirlpooled by people, those who cannot resist are weak fry. Fourth, the naked eye observation method: where the size of neat, plump symmetry, fresh body color, swimming lively for the healthy fish fry; if the size is uneven, thin and weak, slow swimmers are weak fry.

The Medical Drying Cabinet is a kind of large capacity medical drying equipment developed according to the requirements of the hospital.It is used to dry surgical instruments,glassware and respiratory treatment articles.Medical drying cabinet the operation is simple and flexible,the drying temperature setting range is 40 °C ~ 90 °C,and the drying time setting range is 1min ~ 999min.The user can freely set according to the demand.Medical drying cabinet the device has two specifications of single door and double door,which is suitable for different departments in the hospital.

Medical Drying Cabinet

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