Penaeus monodon fabricius, the scientific name of Penaeus monodon
Penaeus monodon is an extremely adaptable organism that does not have strict requirements for environmental conditions. They can survive in both seawater and freshwater environments, and have a wide range of adaptations to salinity, from 3 to 45 to 20 30. This kind of shrimp can also adapt to high temperature and low oxygen environment, the appropriate temperature of growth is 25 30, the feeding habits of Penaeus monodon shrimp are more mixed, both eat animal bait, but also eat plant bait, it is omnivorous and partial animal. In the process of farming, in order to maintain the healthy growth of shrimp, it should be provided with nutritionally balanced bait.
The reproductive habits of Penaeus monodon shrimp are also quite special. Mature individuals live in deeper waters and return to shallow waters when they reproduce. Female shrimp go to the coast to spawn and then return to the deep sea. Spawning mostly takes place at night, and the time of ovulation varies depending on the season.
Morphological characteristics: The body surface of Penaeus monodon is smooth, the shell is slightly thicker, and the body color is arranged by brownish-green, dark brown and light yellow ringed color bands. Its swimming feet are light blue, and its feet and abdominal limbs are pink.
Water quality requirements for Penaeus monodon aquaculture Water quality management is a crucial part of Penaeus monodon culture. The following is a collation and overview of the detailed management points of aquaculture water quality:
Basic requirements for water quality:
pH: Should be kept at 80～8.8. The daily fluctuation should not exceed 05。
Dissolved oxygen: Measured before 6:00 a.m., the content should not be less than 4 mg L.
Salinity: Control at 15-25, too high or too low will affect the growth of shrimp.
Total alkalinity: should be higher than 100 mg l.
Nitrite: Content should be less than 002mg/l。
Ammonia nitrogen: The content should be less than 03mg/l。
The use of Oakdan aquaculture water quality tester is convenient for accurate and rapid detection of water quality indicators.
Water quality requirements for shrimp monodon farmingWater color change and regulation:
Ideal water color: Yellow-green or tan color, formed by green algae or diatoms.
Avoid mutations: Avoid sudden changes in water color and filamentous algae overblooms.
Water level management: Raise the water level in the early stage, add water in small quantities and many times to stabilize the water phase;In the middle and late stages, the water level is kept high, and the transparency is controlled at 30cm and 40cm.
Water change conditions: Change the water appropriately according to pH fluctuations, transparency, water color, foam, substrate, etc.
Improve pool floor and microbial use
Shrimp farming is to raise the bottom: Penaeus monodon inhabits the bottom of the pond, and the quality of the substrate directly affects the success or failure of aquaculture.
Microbial use: Regularly use high-quality microbial preparations, such as water purifiers, to improve the bottom of the pool.
Clear purpose of use: According to the loading of organic matter in the water body and the bottom of the pool, choose the appropriate time to use microbial agents to avoid overuse leading to the opposite effect.
Notes on the specific use of microbial agents for the water quality requirements of Penaeus monodon shrimp culture:
Regular use: Start before seeding and use every 7-10 days.
High-quality products: Choose products with good reputation and high quality.
Clarify the purpose of use: Determine the purpose of using microbial agents according to the culture stage and water conditions. 3.1 Water quality management.
Supplement nutrients: Regularly supplement dicalcium phosphate, dolomite powder and sodium bicarbonate to maintain the balance of calcium, magnesium, phosphorus and other elements in the water body, and pay attention to adjusting the pH value of the water body, especially after heavy rain or cloudy weather.
Ensure dissolved oxygen: Dissolved oxygen is the key to maintaining stable water quality and healthy growth of shrimp, and it is necessary to ensure the dissolved oxygen content of shrimp ponds through aerators, liquid or solid oxygenators.
Use of zeolite powder, etc.: Regular use of zeolite powder helps to purify water and replenish salts to stabilize water quality.
Bait feeding. Feeding times and time: adjust the feeding times according to the seedling density, it is generally recommended to feed four times a day, and adjust the feeding amount according to the weather, water quality and other conditions.
Bait selection: choose high-quality compound feed, pay attention to the balance of protein and amino acids, as well as the digestion and absorption of shrimp.
Bait tip: Adjust the daily feeding amount flexibly according to the weather, water quality and shrimp conditions, and pay attention to the treatment of bait residues.
Water quality requirements for shrimp monodon farmingLitopenaeus monodon disease control
Prevention first: Adhere to the principle of prevention first and comprehensive prevention and control, and pay attention to water disinfection and early detection of diseases.
Common diseases and treatment: For sessile ciliarisis, white spot syndrome, cyanobody disease, red gill and black gill disease and other common diseases, there should be corresponding detection and methods, such as the use of zinc sulfate, tea cake, disinfectant, etc.
Water quality and environmental mutation treatment: such as after heavy rain, the water quality should be adjusted in time to reduce the stress of the shrimp body, and the shrimp immunity should be enhanced by taking drugs internally.
Litopenaeus monodon culture is a complex process that requires careful management by farmers to respond to various environmental changes in a timely manner to ensure the success of culture. In the process of aquaculture, it is recommended to pay close attention to the water indicators, conduct regular water quality testing, and adjust the aquaculture management strategy according to the test results. At the same time, use drugs rationally and avoid excessive or improper use, so as not to cause environmental pollution or affect the health of shrimp.
The above content is for reference only.
Author: Oakdan water quality tester manufacturer Manager Jiang 18051502707