[teach you a trick] autumn shed shrimp seedling management process (with eggs)
2021-07-28
Qingdao Zhongren Animal Medicine Co., Ltd
Zhongren Aquatic Products
[teach you a trick] autumn shed shrimp seedling management process (with eggs)
With the end of the small shed shrimp in spring, most of the small shed culture of Penaeus vannamei has entered the stage of dry pond, sunning pond and whole pond, and corresponding preparations have been made for the release of seedlings around the beginning of August. Combined with the weather conditions and sunning pond conditions this year, it is suggested to carry out the management before and after the release of seedlings according to the following steps to ensure the smooth progress of the culture work, as follows:
1. bubble pond disinfection
After the shrimp catching is finished in spring and the shrimp at the bottom of the pond are picked up, when the water level in the shed is 10-20cm, use 150-250kg/shed of calcium oxide (the dosage shall be determined according to the blackening of the bottom and the shrimp culture in spring), soak for about 20 days, and gradually infiltrate the water. During this period of time, the maintenance and repair of aquaculture facilities and equipment can be carried out according to the situation of the pond mouth. Wait until 10-15 days before the seedlings are released (depending on the number of sheds and water sources) to feed 60cm of water, then soak with bleaching powder (1-2 bags/shed) for 3-4 days, and turn on the aerator to aerate and stir the water body.
2. removal of residual chlorine
GraduallyChange water
Three days before seedling release, check the residual chlorine in the water body to prevent and control the excess chlorine. If no residual chlorine is detected, use soda (5kg/shed) to prevent the bottom bleaching powder residue from releasing residual chlorine to the water body and affecting the survival rate of the seedlings in the future. If residual chlorine is detected, increase the amount of soda used, and continue to detect residual chlorine on the second day, and determine whether to use soda again according to the residual chlorine.
3. bacteria filling
After the bleaching powder is used, the bottom microorganisms (especially in the upper layer of sediment) are basically cleaned up through the three-dimensional effect of bleaching powder on the water body and its own settlement. Therefore, in the afternoon of the day when no residual chlorine is detected and big soda is used, EM golden dew (2 sheds/bottle) probiotic group (3 sheds/bag) can quickly form the bottom beneficial bacteria phase and increase the proportion of bottom beneficial bacteria, inhibit the proliferation of harmful bacteria at the bottom, decompose the organic matter at the bottom, reduce the eutrophication of the water body, and prevent the formation of old green water.
4. detoxification and cultivation of bacteria
On the morning of the day before the seedlings are released, first use clear water detoxification safety (3 sheds/bottle) and 100 poison quick solution (2 sheds/bag). clear water detoxification safety can remove residual toxins and harmful algal toxins in the water body and penetrate the water body. In the use of live bacteria or fertilizer before the use of water, can improve the effect of live bacteria preparation, and effectively promote the reproduction of algae, especially in ponds with fertilizer and water difficulties, the effect is more significant.
Baidu quick solution can efficiently and quickly complex heavy metal ions, can quickly eliminate heavy metals and minerals seriously exceed the standard, and stabilize water quality. This product is especially suitable for a large number of use of groundwater shed breeding before the water quality treatment.
One hour before seedling release, use super golden bacteria (1kg/shed) to concentrate Bacillus (3 sheds/bag), and replenish bacteria again to further supplement the content of beneficial bacteria in water body, promote the formation of excellent bacteria phase, and pave the way for the formation of excellent algae phase.
5. seedling release test
Before taking the seedlings, we should not only look at the seedling test report of the seedling farm, but also sample the shrimp seedlings for inspection if conditions permit. Can get excellent shrimp, is the key to the success of breeding. On the other hand, the survival rate can be verified by trial seedling work.
There are two plans as follows: one is to take water samples from the shed where seedlings need to be placed and bring them to the nursery for seedling testing; the other is to bring some samples of shrimp seedlings from the nursery back to their own farms for water testing. Generally, about 20 seedlings are placed in a bucket of water in each shed to see the death of shrimp seedlings. For example, if the shrimp seedlings are healthy and no more than one seedling dies in a bucket, such shrimp seedlings can be released.
Before releasing the seedlings, put the seedling bag directly on the water surface of the shed, and put the shrimp seedlings from the seedling bag into the pond for about half an hour. Before the shrimp seedlings are released from the bag, the stress detoxification CE is used to sprinkle the seedlings (3 sheds/bag) to improve the anti-stress ability of the shrimp seedlings, reduce the stress reaction after the shrimp seedlings enter the water body, and reduce the swimming time in the pond. Seedling time is generally arranged in the morning or morning is appropriate.
Key recommend
actual case]
Contribution of this article: Cao Shuo and Liu Weihao Some pictures are provided by: Liu Changming
Key words:
Contact Us
Administrative service telephone:0532-85212368
Sales Advisory Phone:0086-532-85212381
E-mail:zhongrenyaoye@126.com
Address: No.6 Road, Jiaoxi Industrial Park, Jiaozhou City, Qingdao, Shandong Province
Qingdao Zhongren Animal Medicine Co., Ltd
Zhongren Aquatic Products