Under natural conditions, pro-pipa has a long reproductive cycle, a low spawning rate and a low survival rate. To improve the breeding efficiency, first of all, it is necessary to improve the fertility of intimacy and obtain a high quality and high quality of the young.
First, the selected species are robust, disease-free, non-invasive, and agile. They can stretch their heads and necks immediately to prop up the forebody and run and flee the individual. They are about 10 years old and weigh 2 to 5 kilograms. Its reproduction rate. The number of stocking is 0.5-0.8 per square meter, the weight is 0.6-0.9 kg per square meter, and the proportion of males and females is 5:1.
Second, extend the spawning period will be the early development of the pro-gaze with fluorescent light irradiation in the pool, increase sunshine hours, so that the first year of the spawning period extended to May to October, the second year to reach full-year spawning.
The inbreeding season is from late May to late August, and the egg collection season is from June to July. During the spawning season, two times a week on the pre-set site, the water is poured to moisten the sand. He often spawns between 10 pm and 4 am the next morning, especially in the evening after a thunderstorm. The gathering of eggs should be carried out during the day. When the river sand is moist and dark in color, there are traces of claws and plastrons, and the eggs can be collected by gently opening the sand. The egg shells collected were opaque milky whites, which were fertilized eggs; those without such characteristics were unfertilized eggs and were not suitable for hatching.
Third, the incubation tank temperature control wet incubation will be the length and width of each wooden box 1 meters at the bottom of a number of holes in the filter, and then spread 3 cm thick sand, and then fertilized eggs discharged on the surface of the sand, egg spacing 1 cm. When juveniles are about to hatch, apply an appropriate amount of water 1 to 2 days. In the incubation process, the temperature was controlled at 322°C; the relative humidity was 90% in the first 40 days and 85% in the last 7 days; the water content of the sand was 7% to 10% in the first 40 days, and 4% to 7% in the latter 7 days. .
Fourth, soaking in water stimulates juveniles to hatch. When the hatching time reaches or approaches the accumulated temperature required by the hatching of the juveniles (the black spots on the egg shells all disappear), the batch of eggs is gently removed and placed in a pot, then slowly Slowly add 20 ~ 30 °C water immersed lice eggs, stimulate the rapid hatching of juveniles, usually in the water for 10 minutes or so, there will be a large number of juvenile clam shell out. Unhulled quail eggs were immediately taken out of the box for renewal. About 3 days after hatching, juvenile larvae are bred into the pond and bred at a density of 40 to 80 per square meter. The plastic water can be used to keep the water temperature above 25°C in the plastic greenhouse or the factory waste heat; the red mealworms, fish and shrimp, and cooked egg yolks are fed in the initial stage. Later feed the livestock and poultry waste, snails, loach and other high-quality high-protein diets and carry out intensive cultivation. No temperature conditions, when the water temperature is lower than 15 °C to do the winter management.
5. The protein content of the feed carefully for the delirium should be 40% to 50%, and the fat content should be less than 1%. Feed more fish, shrimp, snails, fly maggots, cockroaches, silkworm cocoons, loach, livestock waste and other bait, the bait should be put into the feed table, the amount of feed bait in 2 to 4 hours to finish the degree. When the water temperature is 16°C, feeding is performed once every 3 days. When the water temperature is above 18°C ​​to 20°C, feeding is performed twice a day, once during the day, and once at 10 o'clock in the evening.
First, the selected species are robust, disease-free, non-invasive, and agile. They can stretch their heads and necks immediately to prop up the forebody and run and flee the individual. They are about 10 years old and weigh 2 to 5 kilograms. Its reproduction rate. The number of stocking is 0.5-0.8 per square meter, the weight is 0.6-0.9 kg per square meter, and the proportion of males and females is 5:1.
Second, extend the spawning period will be the early development of the pro-gaze with fluorescent light irradiation in the pool, increase sunshine hours, so that the first year of the spawning period extended to May to October, the second year to reach full-year spawning.
The inbreeding season is from late May to late August, and the egg collection season is from June to July. During the spawning season, two times a week on the pre-set site, the water is poured to moisten the sand. He often spawns between 10 pm and 4 am the next morning, especially in the evening after a thunderstorm. The gathering of eggs should be carried out during the day. When the river sand is moist and dark in color, there are traces of claws and plastrons, and the eggs can be collected by gently opening the sand. The egg shells collected were opaque milky whites, which were fertilized eggs; those without such characteristics were unfertilized eggs and were not suitable for hatching.
Third, the incubation tank temperature control wet incubation will be the length and width of each wooden box 1 meters at the bottom of a number of holes in the filter, and then spread 3 cm thick sand, and then fertilized eggs discharged on the surface of the sand, egg spacing 1 cm. When juveniles are about to hatch, apply an appropriate amount of water 1 to 2 days. In the incubation process, the temperature was controlled at 322°C; the relative humidity was 90% in the first 40 days and 85% in the last 7 days; the water content of the sand was 7% to 10% in the first 40 days, and 4% to 7% in the latter 7 days. .
Fourth, soaking in water stimulates juveniles to hatch. When the hatching time reaches or approaches the accumulated temperature required by the hatching of the juveniles (the black spots on the egg shells all disappear), the batch of eggs is gently removed and placed in a pot, then slowly Slowly add 20 ~ 30 °C water immersed lice eggs, stimulate the rapid hatching of juveniles, usually in the water for 10 minutes or so, there will be a large number of juvenile clam shell out. Unhulled quail eggs were immediately taken out of the box for renewal. About 3 days after hatching, juvenile larvae are bred into the pond and bred at a density of 40 to 80 per square meter. The plastic water can be used to keep the water temperature above 25°C in the plastic greenhouse or the factory waste heat; the red mealworms, fish and shrimp, and cooked egg yolks are fed in the initial stage. Later feed the livestock and poultry waste, snails, loach and other high-quality high-protein diets and carry out intensive cultivation. No temperature conditions, when the water temperature is lower than 15 °C to do the winter management.
5. The protein content of the feed carefully for the delirium should be 40% to 50%, and the fat content should be less than 1%. Feed more fish, shrimp, snails, fly maggots, cockroaches, silkworm cocoons, loach, livestock waste and other bait, the bait should be put into the feed table, the amount of feed bait in 2 to 4 hours to finish the degree. When the water temperature is 16°C, feeding is performed once every 3 days. When the water temperature is above 18°C ​​to 20°C, feeding is performed twice a day, once during the day, and once at 10 o'clock in the evening.
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