For the winter free field of fish farming, it is better to choose the field with sunny leeward, sufficient water source, convenient drainage and irrigation, and good water storage performance. After the late rice is harvested, the field ridges are reinforced and raised to ensure that the water is more than 80 cm. Dig 1 meter deep rectangular fish pit near the water inlet of the field. Dig 1 rice field below 2 mu. Dig 2-3 acres above 3 mu. The pit area accounts for about 5% of the paddy field area for the fish to warm over the winter. In the inlet, the outlet set to stop the fish net escape. Before stocking, 75 kg of lime per acre was sprayed evenly across the field, thoroughly disinfected and promoted rice rot and rice root rot. After 3 days of disinfection, new water was injected, and depending on the water quality, 100 to 150 kg of livestock manure was applied per mu. About 10 days after disinfection, fish can be released.
Due to the shallow winter fields, fish farming is generally from October to April of the following year, and the cold period is longer. Therefore, large-scale species such as squid, carp, grass carp, carp, and carp are raised. The fish body weights were: 0.15 kg of carp, 0.05 kg of carp, 0.25 kg of grass carp, and 0.2 kg of carp and carp. 160 to 180 per mu of stocked squid, 100 to 150 squid, 50 to 70 grass carp, 25 to 30 squid, and 15 to 20 carp. When the fishes are stocked, they are sterilized with 2% to 3% saline for 10 minutes. After about 6 months of feeding, if properly managed, it can produce 100 kilograms of fresh fish per mu and earn more than 600 yuan.
After stocking, the fish should reasonably feed the feed according to the weather and water temperature conditions. The feed should be refined, and pay attention to matching the green material. The concentrate can be used for cakes, rice bran, wheat bran, and pellet feed, etc. The green material is mainly for cabbage leaves and young grass. Each day, the feed was fed at 5% of the body weight of the fish, and 40% of the body weight of the grass carp was fed to the leaves of the cabbage. In November, ryegrass can be harvested for grass carp.
As long as the water temperature is above 12°C, feeding should still be enhanced and pelleted feed should be fed around 2% of the fish's body weight each day. From January to February, when the water temperature is low, it cannot be completely stopped. It can be properly fed according to the weather conditions. From March to April, the temperature of water gradually increased, and the food intake of fish gradually increased. The feed was fed at 5% of the fish's body weight every day and the amount of green feed was not determined as the morning of the second day. Just put the fish when the water injection 30 cm, so that rice sprouts grow, for grass carp to eat. According to the growth condition of the ratooning rice and the eating and feeding conditions of the fish, the water level is gradually deepened and deepened to more than 80 cm after November. Depending on the water quality, timely injection of new water, regular splash of lime water, to maintain the transparency of the water in the 25 to 30 cm. If the transparency exceeds 30 cm, some manure or fertilizer should be applied properly.
When the water temperature falls below 10°C, cover the grass shed above the fish pit to facilitate fish warming, habitat and safe wintering. In the middle and late November of the year, the water body is disinfected and prevented with fish disease, dibromohydantoin and chlorine dioxide, and regularly added to pellet feed and forage materials such as allicin, rhubarb, and oxytetracycline.
Injection And Infusion Products is our main product series. All of our Injection and Infusion Products have get the CE, ISO and FDA. We also have our own GMP. To make sure the injection and infusion products safe. Our workshop have six 1*20'FCL sterilization container. We could get the quantity of 180*1*20FCL products sterilized in one month. Under this situation, we could make the delivery shorter, about 3-5 days. So kindly don't worry about the delivery. It is about 25-32 days. The delivery will be 32 days, when near the spring festival.
If you are intrested in our products, welcome to contact us and send us requirements.
For health! Professional service, we will be better!
*Related Products:Glass Syringe,Prefilled Syringes.
Injection and Infusion Products
Injection And Infusion Products,Disposable Syringe,Pvc Infusion Bags,Glass Syringe,Prefilled Syringes
Hebei Orient Imp. & Exp. Co. Ltd. , https://www.orientmedcare.com