Discussion on breeding technology of white-spotted pike

They spend the winter under the ice. In spring, they lay eggs when the water temperature is between 4 and 14 degrees Celsius. The peak spawning period is when the water temperature is between 6 and 8 degrees Celsius. The body length of the fry is 8.5-9.0 mm when they first emerge from the membrane. They use egg yolk as nutrition. When the yolk is absorbed, the body length is 11-14 mm. At this time, they start to eat. Cooked egg yolks or rotifers can be used as the opening bait for the larvae. Move the seedlings in the flat swimming stage from the cage to the summer flower breeding tank for cultivation. In the juvenile stage, they feed on rotifers, small cladocerans, copepods and other zooplankton. When they are slightly larger (5-7 cm), they prey on other fish. They grow quickly. If there is sufficient food, it only takes about 30 days for the fry to reach a 50-gram individual in the pond. In the local area, it can reach more than 500-800 grams in a year, and the largest individual in natural water bodies can reach 40 kilograms. (3) Feeding of bait fish and their sizes: As the white-spotted pike grows, the palatable size and quantity of the required bait fish continue to increase. Feeding must be timely grasped. The size of the feed fish that pike likes the most is about 1/3 of its body length. The daily food intake can be calculated as about 5 palatable feed fish per pike per day. b. The temperature can be raised naturally during the incubation process, but care should be taken not to raise the temperature too fast. The temperature can be raised by 4 degrees Celsius in 24 hours. It is best to keep the temperature at 12-14 degrees Celsius. Higher than 16 degrees Celsius may easily cause hatching failure or an increase in malformed seedlings.