What Should Be Paid Attention To When The Roe Hatches?
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Update time : 2021-08-19 14:20:36
During the hatching process, the hatching of the fertilized eggs of the fish is carried out naturally. External factors are mainly affected by weather and temperature. Take the Yangtze River Basin as an example, there is a big temperature difference before and after Qingming, and cold currents often invade southward. The weather during this period is extremely unfavorable for the first batch of hatched fertilized eggs. The low temperature prolongs the incubation time and affects the hatching rate of the fry, so that the body of the young fish may gradually affect the death. Therefore, during this period, if the temperature is low, the pool should be covered, or the fish nest with water should be moved indoors, placed in an open pool, and then moved to an outdoor pool at normal temperature. Spawning Brushes For Ponds
Many experienced breeders often use the second batch of eggs to hatch. For actual operation and management, this is very beneficial to the hatchability and the physique of the juvenile fish. The spawning time of juvenile fish depends on the water temperature. At a suitable water temperature of 15-20 degrees, the fertilized eggs can hatch small fish in 5-7 days; when the water temperature exceeds 20 degrees, the small fish can hatch in 3-4 days. When the temperature drops, the first batch of eggs usually takes about 10 days to hatch small fish.
During the entire incubation process, try not to turn the fish nest and disturb the water body, otherwise, it is easy to increase the defective rate. When the fish nest is placed in the hatching tank, a small amount of live daphnia can be placed in the tank, which can remove more algae in the water and gnaw off the mold.
If you need to hatch fish eggs in large quantities, you can use the Pond Spawning Brush produced by Aoqun Brush Factory. The unique cross brush wire can carry more fish eggs on it. The 304 stainless steel wire will not pollute the water body and is not easy to rust. A hoop that can be hung is also intimately added to the tail, which is a good helper for the hatching of fish eggs.
