When is the latest time for Mandarin fish fry to be released?
Chinese chuatsi fish fry in June at the latest, Siniperca chuatsi fish growth and feeding of the best temperature zd for 23 ~ 28 degrees Celsius, the best reproduction of the water temperature of 21 degrees Celsius.
If the fry are laid too late, the water temperature will be too high, which will stimulate the growth of Siniperca chuatsi and easily lead to the disease or death of Siniperca chuatsi fry.
Cautionary notes on stocking Mandarin fish fry
1, pond conditions
Choose to build Mandarin fish fry ponds with windward and sunny sides, sufficient water supply, fresh and unpolluted water, convenient drainage and irrigation, with loamy soil substrate, silt of 10-20cm or newly dug ponds being more desirable.
The area is 4-6 acres, and the water depth is about 1.5 meters.
2, clear the pond
Ten days before the release of seedlings thoroughly clear the pond, the use of quicklime 100 kilograms per acre plus 30 kilograms of tea bran, not only can effectively remove harmful bacteria, parasites, etc. in the pond, but also can be a constant source of calcium and magnesium to the water to provide a source of calcium and magnesium, crude protein, amino acids, and other nutrients, to avoid too much fluctuations in the water body, the release of the fish fry appeared to be a large area of stress and death.
3, release the fry
Chinese chuatsi fish fry in the pond before each side of the water using Sambo methionine iodine 5 grams + 5 kg of coarse salt bath immersion for 2-5 minutes, the day after the pond using splash ginger 150 grams + Sambo high stability VC 200 grams per mu to improve the resistance of the fry, the next day after the pond using Sambo methionine iodine 50 grams + Fiber Mite 100 grams per mu disinfection and insect prevention.
4, feed feeding
Daily bait fish supplement 10-15 kg of powder with fermented material is best, while every morning and evening at least once a day to patrol the pond, and check the growth of Mandarin fish fry and the pond whether there is enough bait fish, if found in the pond bait fish is not enough, it should be immediately replenished to the full, and always ensure that the number of bait fish in the pond is the number of guppies more than 4 times.
Generally, the bait fish fry is the best 40%~60% of the full length of the osmanthus fry.
5, daily management
Check the water quality every day, including ammonia nitrogen, salt, morning and evening pH, total alkalinity, according to the water quality, use microbial agents every five days, to prevent the water quality exceeds the standard, morning and evening pH fluctuation is too large, the fish fry die of stress.
Check the fish body every three days to avoid the outbreak of reproduction of rotifers, fingerlings, and oblique tube worms.
The above is about Siniperca fish fry stocking time and notes introduced, in order to improve the survival rate of Siniperca fish fry, do a good job of these management points is very important, about Siniperca fish fry breeding you still have anything to add?