Key points of tilapia breeding and seedling preservation
An excellent pond environment is conducive to the growth of the fry and improves the survival rate. Tilapia ponds are generally earth ponds, where some wild fish, insects, tadpoles and other harmful organisms, as well as some parasites and pathogenic bacteria are hidden in them. Therefore, clearing the pond is very important in the whole process of marking seedlings.
There are two methods of clearing the pond: dry clearing and water clearing. Due to limited conditions, wet clearing is generally adopted here. The specific plan is that 15-20 days before the seedlings are placed, 5-10 cm of quicklime with water can be used for disinfection, and the general dosage is 40-80 kg/mu. After 2-3 days, use a dense mesh filter to inject water, and the water depth should be 2 meters. And you can come to see the dry type fish feed machines which will help you a lot.
It is very important to cultivate a pond of good water, which is related to the success rate of seedling placement. If the water quality is too thin, the water body will lack the stability and nutrients needed for the growth of fish fry. At this time, it is recommended to use "Algae Ansheng" to cultivate beneficial algae such as diatoms and green algae. Use the "Double Profit" package every two days (1 pack of "Limiaoduo" + 4 bottles of "Lijunduo" + 10 catties of brown sugar + 400 catties of water, fermented for 1-2 days) to improve the carbon-nitrogen ratio of the water body and maintain the pond biological stability.
Note: Do not use large bags of granular organic fertilizer or chemical fertilizers. Avoid the rapid growth of algae and the single algae phase, which will cause algae inversion, dirty bottom, water change, high pH value, bubble disease, etc.
10-15 days after water cultivation, the zooplankton, phytoplankton, and microorganisms in the water have reached a balance. The typical sign is the appearance of cladocerans in the water body. This kind of water is stable, has strong self-purification ability and normal indicators. This is the best time to put seedlings. good time.
The density of tilapia seedlings should be 20,000 to 30,000/mu. If the density is too high, the bait organisms in the pond will be insufficient, and it is not conducive to insect and disease prevention. The temperature difference between the seedling bag and the pond should not exceed 2 °C. Generally, the seedling bag is placed in the water until the temperature difference is lower than 2 °C, and then the seedling bag is opened and the seedlings are placed. The fry is easy to cause mechanical damage during the operation.
After the fry are placed, the use of disinfectants with high safety and low irritation (such as "Yongle iodine") can reduce the probability of the fry getting sick.
Hope you can come to see Lima feed machines.










