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Challenges to Shrimp Farmings In the period during Summer To Autumn
In summer and autumn exchanges period, the temperature difference between day and night comes larger. Especially in Asia countries,
like in Taiwan, which it is kind of difficult challenge to the shrimp farmers.
Temperature changes may cause below in shrimps farming,
- Physiological stress:
The drastic changes in water temperature will changes in the metabolic rate of the shrimp. Then increasing the stress, and may lead to a decrease in the shrimp’s immunity and increase the risk of disease. - Influence on the digestive system:
Excessive temperature changes will affect the appetite of shrimp and the activity of digestive enzymes. It may reduce the feed conversion rate, thus affecting the growth rate
Some suggestions in operation instructions for this harsh time,
- Maintaining stable water quality:
Once the temperature difference between day and night is vary, maintain good water quality is important. When water quality at the bottom is changed dramatically by temperature, use good probiotics is an option. Good probiotics can inhibit the reproduction of harmful bacteria and reduce the infection of pathogens. Then improve the breeding rate of fish and shrimp. - Strengthen the aeration system:
The temperature difference between morning and night will cause dissolved oxygen changes in the water. Especially in the early morning, the lack of dissolved oxygen may happen. Thus increasing oxygen rate is sort of important. Using the paddle wheel aerators is a sufficient way to have dissolved oxygen (DO) reaches 5ppm. - Appropriately adjust the amount of bait and feeding frequency :
Since temperature changes will affect the appetite of shrimp, feeding frequency should be adjusted appropriately. The fee nutrition and if easy to digest is critical. - Monitoring water quality parameters:
During seasonal changes, water quality parameters. Such as ammonia nitrogen, nitrite, pH, etc. should be monitored more frequently. Especially when water temperature, dissolved oxygen and salinity is changed. Maintaining good water quality is essential to the health of your shrimp. - Enhance immunity:
Adding immune enhancers and probiotics to the feed to enhance the shrimp’s immunity. - Preventing disease outbreaks:
Special attention should be paid to preventing the spread of pathogens during this period.
Low-concentration disinfectants can be used to disinfect the water regularly.
The behavior and health of the shrimp should be closely observed to detect and deal with any abnormalities early.
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