Choose suitable fish ponds: The area of ​​fish ponds should be 3500-4000 square meters, with water depth of 2m or more, no water leakage, adequate water sources, and easy injection and drainage. For an output of 500kg/667 square meters or more, 0.5kw of oxygen-increasing equipment should be provided for every 667 square meters of pond.
Selection of high-quality fish species: Advantages Summer fish species are full-bodied, bright and bright, scales are intact, and the top water is strong. The lids do not open immediately after leaving the water. Before stocking, the selected summer fish should be sterilized with 3%-5% saline solution.
Breeding palatable food: cultivate summer grass and grass fish, fish ponds should be in front of the fish ponds, to cultivate a good duckweed or duckweed. The 1st-age grass carp pond should also be used after the clear pond, apply 4,000-5000kg of organic fertilizer per 667 square meters, use water bamboo to divide the water surface into a cross-shaped frame, and then cast 16-25kg per 667 square meters cast pudding or duckweed species. , Put Ping into the box. Apply organic fertilizer 25-50kg every 2 days, or use 1kg of ammonium bicarbonate and 0.5kg of superphosphate to dilute with water and then spill it over the whole pond. Sprinkle each time in the morning, in the middle, and in the evening to accelerate the breeding of duckweed.
Timely and appropriate stocking: Planned yields of 500 kg/667 square meters or more, 4,000 to 5,000 tails of grass carp per 667 square meters of water, 2000 to 3000 tails of carp, 500 to 600 tails of carp, 100 herrings, 2000 to 3000 tails of carp, 500 squid. When stocking, the main fish should be stocked earlier. This will not only ease the conflict between the scion and the fish and the space for fish, but also further improve the specifications of the main fish and increase its ability to bait.
Strengthen the bait feeding: when the fish pond is under the grass, it is not necessary to control the amount of food. It should be done after the food is eaten. It requires that the grass carp in the pond with fish rearing is more than 10cm, and the specifications are uniform. When the summer grass carp is under the pond, it mainly feeds on the genus Cladocera and duckweed. The 2-3 days before the duckweed is eaten allows the fish to switch to the shredded and tender grass or the purple duckweed and the black algae. From July to August, the amount of bait should be properly controlled and no feeding should be done at night. In late September, feeding should be intensified to allow fish to eat day and night.
Strengthen water quality management: The quality of water should be increased within 20 days after ponds and ponds, and 75kg of grass pulp should be sprayed every day. Every 10 days of new water should be recharged every 2 days. The water quality can be light after 20 days, except for regular supplements. Outside the new water, some old water should also be drained. The transparency of the water quality can be maintained at about 35cm to promote the appetite of grass carp. In the middle and late September, the number of water additions is gradually reduced, and fertilizers are chased at the same time. Once every 7-10 days, urea 1.5-2.5kg and phosphate fertilizer 2.5kg-5kg can be applied to each 667m2 pond.
Do a good job in preventing fish diseases: In late July and late August, use 20 g/m3 of quicklime to splash once, and in mid-August and mid-September use 0.5 g/m3 of crystals of trichlorfon and 0.2 g/m3 of The ferrous sulfate Quanchiposa. Between mid-August and mid-September, furazolidone was used to feed two courses of treatment. The food table should also be regularly cleaned or disinfected with bleach.
Choose suitable fish ponds: The area of ​​fish ponds should be 3500-4000 square meters, with water depth of 2m or more, no water leakage, adequate water sources, and easy injection and drainage. For an output of 500kg/667 square meters or more, 0.5kw of oxygen-increasing equipment should be provided for every 667 square meters of pond.
Selection of high-quality fish species: Advantages Summer fish species are full-bodied, bright and bright, scales are intact, and the top water is strong. The lids do not open immediately after leaving the water. Before stocking, the selected summer fish should be sterilized with 3%-5% saline solution.
Breeding palatable food: cultivate summer grass and grass fish, fish ponds should be in front of the fish ponds, to cultivate a good duckweed or duckweed. The 1st-age grass carp pond should also be used after the clear pond, apply 4,000-5000kg of organic fertilizer per 667 square meters, use water bamboo to divide the water surface into a cross-shaped frame, and then cast 16-25kg per 667 square meters cast pudding or duckweed species. , Put Ping into the box. Apply organic fertilizer 25-50kg every 2 days, or use 1kg of ammonium bicarbonate and 0.5kg of superphosphate to dilute with water and then spill it over the whole pond. Sprinkle each time in the morning, in the middle, and in the evening to accelerate the breeding of duckweed.
Timely and appropriate stocking: Planned yields of 500 kg/667 square meters or more, 4,000 to 5,000 tails of grass carp per 667 square meters of water, 2000 to 3000 tails of carp, 500 to 600 tails of carp, 100 herrings, 2000 to 3000 tails of carp, 500 squid. When stocking, the main fish should be stocked earlier. This will not only ease the conflict between the scion and the fish and the space for fish, but also further improve the specifications of the main fish and increase its ability to bait.
Strengthen the bait feeding: when the fish pond is under the grass, it is not necessary to control the amount of food. It should be done after the food is eaten. It requires that the grass carp in the pond with fish rearing is more than 10cm, and the specifications are uniform. When the summer grass carp is under the pond, it mainly feeds on the genus Cladocera and duckweed. The 2-3 days before the duckweed is eaten allows the fish to switch to the shredded and tender grass or the purple duckweed and the black algae. From July to August, the amount of bait should be properly controlled and no feeding should be done at night. In late September, feeding should be intensified to allow fish to eat day and night.
Strengthen water quality management: The quality of water should be increased within 20 days after ponds and ponds, and 75kg of grass pulp should be sprayed every day. Every 10 days of new water should be recharged every 2 days. The water quality can be light after 20 days, except for regular supplements. Outside the new water, some old water should also be drained. The transparency of the water quality can be maintained at about 35cm to promote the appetite of grass carp. In the middle and late September, the number of water additions is gradually reduced, and fertilizers are chased at the same time. Once every 7-10 days, urea 1.5-2.5kg and phosphate fertilizer 2.5kg-5kg can be applied to each 667m2 pond.
Do a good job in preventing fish diseases: In late July and late August, use 20 g/m3 of quicklime to splash once, and in mid-August and mid-September use 0.5 g/m3 of crystals of trichlorfon and 0.2 g/m3 of The ferrous sulfate Quanchiposa. Between mid-August and mid-September, furazolidone was used to feed two courses of treatment. The food table should also be regularly cleaned or disinfected with bleach.
This product is a one-time use only and needs to be destroyed after use. The disposable plastic Tweezers, sterilized medical forceps , anti-static tweezers, clean plastic tweezers with or without tooth, which have good hardness, elasticity and toughness. High temperature, acid and alkali resistance. The asepsis term of validity is two years. The Medical Tweezers is widely used in hospital for the nurse and surgical and for the laboratory to do the experiment, but also can be used as emergency bag accessories. A good choice for family and medical, safety, health, beauty.
Tweezers
Medical Tweezers,Medical Plastic Tweezers,Disposable Medical Tweezers,Laboratory Tweezers
Hebei Orient Imp. & Exp. Co. Ltd. , https://www.orientmedcare.com