After catching loaches, they need to be temporarily raised for several days before they can be transported for sale or consumption. The purpose of this temporary raising is to remove residual waste and feces from the body, increase the survival rate during transportation, and also remove the muddy smell of loaches, thus improving their edible value. So, what are the methods for temporarily raising loaches? Let's find out.
How to Temporarily Raise Loaches after Catching?
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Net Cage Temporary Raising: Place loaches in a net cage made of sieve cloth and put it in a river or pond with good water quality. The specifications of the net cage can be 2 meters × 1 meter × 1.5 meters, and the temporary raising density is generally 30-40 kilograms per square meter.
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Wooden Barrel Temporary Raising: Various large-volume wooden barrels can be used for temporary raising of loaches. Typically, a wooden barrel with a volume of 72 liters can temporarily raise 10 kilograms of loaches. Start by changing the water 4-5 times a day, and after the third day, change the water 2-3 times a day. Control the amount of water changed to about one-third each time.
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Fish Basket Temporary Raising: Place loaches in a fish basket with a diameter of 24 centimeters, a bottom diameter of 65 centimeters, and a height of 24 centimeters, and put it in still water for temporary raising. Each basket can hold 7-8 kilograms of loaches. If raising in flowing water, it can hold 10-15 kilograms. Ensure that one-third of the fish basket is above the water surface to allow the loaches to perform intestinal respiration.
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Cloth Funnel Temporary Raising: Choose a river or lake with fresh water, set up cloth funnels with about one-third of the upper part exposed above the water surface. Typically, a cloth funnel with a diameter of 24 centimeters, a bottom diameter of 65 centimeters, and a depth of 24 centimeters can temporarily raise 7-8 kilograms of loaches in still water and 15-20 kilograms in flowing water.
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Cement Pool Temporary Raising: Cement pools are generally 8 meters × 4 meters × 0.8 meters, with a water storage capacity of about 20 tons. The site should be selected in a location with abundant sunlight, sufficient water sources, fresh and unpolluted water. Before entering the pool, carefully select loaches of consistent specifications. You can release them all at once or release them as needed, but before releasing, they must be soaked in 3% saltwater for 3-5 minutes.
In summary, there are many methods for temporarily raising loaches. Choose the one that suits you best. Generally, short-term temporary raising is sufficient, typically within two to three days. However, if long-term temporary raising is required, proper aquaculture management during the temporary raising period is essential. Improper temporary raising, without following standard procedures, can easily cause injuries to the loaches, affecting their survival rate.
Frequently Asked Questions (FAQ)
1. How long should loaches be temporarily raised after catching?
The duration of temporary raising for loaches after catching depends on various factors such as water quality, temperature, and transportation arrangements. In general, loaches can be temporarily raised for two to three days to allow them to adjust to their new environment and purge any residual waste.
2. Can loaches be temporarily raised in tanks or aquariums?
Yes, loaches can be temporarily raised in tanks or aquariums, provided that the water parameters are suitable for their well-being. Ensure proper filtration, aeration, and water quality maintenance to support the health of the loaches during temporary raising.
3. How often should water be changed during the temporary raising period?
The frequency of water changes during the temporary raising period depends on factors such as stocking density, water volume, and water quality. It is recommended to change the water at least once a day to maintain optimal conditions for the loaches.
4. What should be the ideal water temperature for temporarily raising loaches?
The ideal water temperature for temporarily raising loaches is between 20°C to 25°C (68°F to 77°F). Ensure that the water temperature remains stable within this range to prevent stress and promote the well-being of the loaches.
5. Can loaches be fed during the temporary raising period?
It is generally not necessary to feed loaches during the temporary raising period, as they can survive on stored energy reserves. However, if the temporary raising period exceeds three days, small amounts of live or frozen food such as bloodworms or brine shrimp can be offered sparingly.
6. How can I prevent diseases during the temporary raising of loaches?
To prevent diseases during the temporary raising of loaches, maintain good water quality, provide adequate aeration and filtration, and avoid overcrowding. Additionally, quarantine newly introduced loaches before placing them with established populations to prevent the spread of pathogens.
7. Can loaches be transported directly after temporary raising?
Loaches can be transported directly after temporary raising, provided that appropriate measures are taken to minimize stress during transportation. Use oxygenation and proper packaging to ensure the well-being of the loaches during transit.
8. What signs should I look for to ensure the health of temporarily raised loaches?
When temporarily raising loaches, monitor their behavior and appearance closely. Signs of good health include active swimming, alertness, and a healthy appetite. Conversely, signs of illness or stress may include lethargy, loss of appetite, abnormal swimming behavior, or visible signs of disease such as lesions or discoloration.
9. Can loaches be released back into the wild after temporary raising?
Releasing temporarily raised loaches back into the wild should be done with caution and consideration for environmental impact. Consult local authorities or fisheries experts for guidance on responsible release practices and potential ecological implications.
10. What should I do if loaches show signs of distress during temporary raising?
If loaches exhibit signs of distress during temporary raising, such as gasping at the surface, erratic swimming, or loss of equilibrium, immediately assess and address potential stressors such as poor water quality, overcrowding, or inadequate oxygenation. Take corrective measures promptly to ensure the well-being of the loaches.
