Text | Changzhou Haida Dong Hanxu
In May and June, when the soft-shelled turtle is transferred from the greenhouse to the outer pond, it is the peak period for the soft-shelled turtle to eat and grow, and it is also the season of bacterial reproduction, the incidence of various diseases of the soft-shelled turtle is high, and there are many complications, if it is not handled properly, it is easy to make the liver damaged, induce hepatobiliary syndrome, white plate disease, respiratory tract and other diseases.
The success of the soft-shelled turtle greenhouse to the outer pond cannot be avoided by the multi-dimensional management in the later stage of the greenhouse, the early disinfection steps and the continuous attention after the seedlings, good water quality control, reasonable internal service plan with Changzhou Haida soft-shelled turtle feed, in the downturn of the market, the loss is minimized.
Multi-dimensional management in the later stage of the greenhouse
In the later stage of the greenhouse, it is a common phenomenon that the ammonia nitrogen is high due to the large amount of feeding, and the speed of residual bait fecal excretion in the water body exceeds the speed at which ammonia nitrogen can be reduced by changing the water. 01Clean water disinfection
(1) Turbid water quality: When the turbidity and transparency of the water body are low, use turbid water and other products to reduce turbidity, and use iodine preparations to disinfect to reduce the risk of respiratory, inflammation and infection caused by common germs and turbidity of the water caused by the decline of dissolved oxygen.
(2) Lean water quality: At this time, do not disinfect first, it will further kill the beneficial factors in the water body, prescribe the right medicine, and then carry out a reasonable bacterial supplementation plan.
(3) Injury: first change the bottom to increase oxygen, then disinfect and detoxify and then replenish bacteria, and finally cooperate with internal Chinese medicine to strengthen the physique.
02 Change the bottom to purify the water
The effect of physical and biological bottom modification in the early stage of greenhouse breeding is obvious, and the effect is better when used alternately with chemical bottom modification in the later stage of breeding. 03Cultivate bacteria and stabilize water
Greenhouse culture is a protracted battle, especially in the later stage, regular replenishment of EM bacteria or other fungus products can effectively balance the biochemical indicators of the water body and maintain the ecological balance of the water body.
04Oral use
The greenhouse soft-shelled turtle has been in a constant temperature and closed and dark environment for a long time, and it is difficult to adapt when the environment changes abruptly. If there are symptoms such as respiratory tract, rotten skin, bleeding and rotten paws, you can use enrofloxacin, neomycin sulfate and other products to mix a course of treatment.
Preliminary pond disinfection steps
01 Overall thinking
02 Dredging and drying ponds
Dredging the pond is the first step, the silt is organic matter, is fertilizer, can grow grass is also a breeding ground for pests and diseases, but in the environment that can not be fully oxidized, toxic gases will also be produced, the silt is too thick, too shallow can not reach the optimal way to dry the pond, the average sediment is 5-10 cm, can maintain the efficiency of the pond and retain part of the organic matter of the pond.
Sufficient Pond Drying Standards:
It is advisable for a large number of 2-3 cm cracks on the surface of the sediment, the silt is sunburned to grayish white or yellow, and the person walks on the mud surface and sinks slightly and can see the footprints without water seepage.
03 Alkalize the bottom of the pond
Sometimes farmers in the use of excessive quicklime, to the pond or frequent diseases, the main reason is not to maximize the effect of quicklime, the best way to use the need for scientific usage, the best use of the best choice of block quicklime, now with the ready.
Measurement of the use of quicklime:
Part of it depends on the thickness of the silt, the amount of silt in about 5 cm is 100 kg/mu of quicklime, and the amount of silt in 10 cm is 200 kg/mu of quicklime (every 10 cm + 100 kg/mu), if it is an old pond, the sediment is deposited more, and the dredging must be carried out first.
04 Inlet water, fertilizer water
After clearing the pond and disinfection, the water can enter to the required water level, generally 60-80 cm in spring and early summer, at this time, the pH value of the water body should be measured and adjusted immediately (7.2-8.5), and then according to the situation of the pond mouth to see whether the second disinfection. Use the black elf + 3102 + live water spirit to quickly form dominant colonies, comprehensively adjust the balance of bacteria and algae phase in the water body, and achieve fertilizer and water stability at the same time.
Measure the precautionary measures of underwater seedlings
01 Environmental factors
temperature
Half of the greenhouse temperature is relatively high and stable, at the beginning of the seedling, the air temperature and water temperature in the greenhouse should be gradually reduced, so that the soft-shelled turtle gradually adapt to the lower temperature. When the indoor water temperature is basically the same as the water temperature of the outer pond (the temperature difference is within ±3 °C), the temperature condition of the outer pond can be reached. In addition, the water level of the early pond should not be too high to facilitate the heating of the water body.
Water Quality Objectives
02 Manual operation
Fasting before the soft-shelled turtle is transferred to the pond
The soft-shelled turtle will have a strong stress response during the operation of the pond, and in the case of satiety, it will increase the damage of the stress response to the soft-shelled turtle, so it is best to stop eating 1-2 meals before transferring to the pond to reduce the stress damage in the process of transferring the pond.
Male and female, size classification
According to the actual situation of their own ponds, the soft-shelled turtles are classified according to male and female or according to different specifications, and the survival rate is increased by dividing the pond.
The timing of the lower pond is chosen
The time to transfer to the outer pond, according to the specific situation of their own pond mouth and soft-shelled turtle, if the soft-shelled turtle reaction is sluggish, the vitality is not strong, the feeding is slow or there are other obvious diseases, must be treated first and then transferred to the outer pond.
03Preventive disinfection
In order to avoid cross-infection of germs, soft-shelled turtles must be disinfected and prevented before and after they turn to the outer pond, so as to avoid large-scale casualties due to small scratches and scratches that induce their own virus.
Full disinfection
When the temperature difference between the greenhouse and the outer pond is ± 3 °C and the water temperature is more than 25 °C, it is advisable to transfer the pond, and the pond water should be disinfected immediately after the seedlings are released, and a small amount of mild povidone-iodine can be selected many times, and then prevent disinfection once after 2 weeks. Use anti-stress products such as water-splashing vitamin C to prevent pond stress and reduce the risk of breeding in the later stage of greenhouse transfer.
Partial medicated baths
Medicated bath soft-shelled turtle selection:
If you find that the soft-shelled turtle is not energetic enough, close to the person or does not run away, do not throw it directly into the water, this soft-shelled turtle has carried germs, and the soft-shelled turtle may be tenacious in life for a short time without casualties, and it is thrown directly into the pond, which is likely to lead to the spread of the virus and lose a lot of money, and directly carry out a batch medicated bath, which can solve most of the traumatic bacterial infections.
Medicated bath product use:
Medicated baths are preferably iodine preparations, and the concentration is 10-20 times that of the external splash concentration. After the medicinal bath, let the soft-shelled turtle naturally climb into the pool, and do not throw it from a high place, so as not to cause secondary injury and cause stress. When the high temperature and light are strong, the pond should be rotated to prevent the sudden change of light and other environmental factors inside and outside the shed from causing damage to the soft-shelled turtles out of the greenhouse.
In general, the multi-dimensional management of the greenhouse in the later stage, the thorough disinfection of the pond in the early stage, the measures of water measurement and seedling release with the Changzhou Haida soft-shelled turtle feed, and the long-term feeding of high-quality feed can maximize the safety of the soft-shelled turtle in the outer pond, so as to achieve good economic benefits.
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