1, leather shrimp live temperature, water temperature control at 20 ~ 30 ℃, salinity? Salinity of the sea area is basically suitable, salinity to 13 ‰ ~ 33 ‰ is appropriate, the Peppermint shrimp in mainland China's official name written "shrimp".
2, the pro shrimp mayfly temporary pool of water temperature 1 to 3 days before the sea area than 1 to 2 ℃ is appropriate, if the water temperature is too high too fast, easy to make the pro shrimp mayfly premature birth or abortion. Later to 0.5 ~ 1.0 ℃ / day rate of warming to 21 ~ 22 ℃ under the conditions of 20 ~ 30 days of temporary rearing, feeding a small amount of fresh sandworms, shrimp, miscellaneous clams and other meat, so that the gonads further fattening.
3, although shrimp mayflies in the reproductive season females basically stop feeding, almost empty stomach, but when the temperature of 22 ℃ gonadal coefficient of up to 14% or more, the output of the egg mass of egg particles clear, basically in the form of a mass, that is, mature eggs.
Extended information
Water quality management
Water body to maintain dissolved oxygen in 5ml / L or more, daily water change 1/4 ~ 1/3, transparency in 30 ~ 50 cm. Mouth shrimp mayflies belong to variable temperature ferocious crustaceans, its growth and development and life activities are directly affected by the environmental water temperature.
The water temperature in its living area is 6-31℃, and the optimal temperature is 20-27℃, which is a wide-temperature species. Under laboratory conditions, when the mouth shrimp mayfly was moved directly from 17℃ into 5℃ seawater, its body immediately arched, slowly straightened and then fell unconscious. Transferred into 33 ℃ seawater, mouth shrimp mayfly first up and down, then fell on the bottom side, only swimming limbs can swing, 3 minutes after the coma.
Therefore, it is believed that its temperature tolerance range is from 5 to 33 degrees Celsius. When the water temperature changes, the temperature range will increase. Parental shrimp mayfly cultivation, should pay special attention to the temperature difference, in general, cultivation, water temperature control at 20 ~ 30 ℃. Water temperature is the mouth shrimp mayfly gonadal development of inhibitory factors, in the appropriate temperature range, the higher the water temperature, the faster the development.
If the summer temperature is too high, you can increase the water level to prevent the water temperature is too high and affect the parent shrimp mayfly holding eggs, hatchlings, and even cause death. In the water temperature of 25 to 30 ℃, eggs from fertilization to hatchlings, it takes 7 to 15 days.
Bait management
Mouth shrimp mayflies can feed on fish, shrimp, shellfish, but fresh small shellfish is preferred to avoid contamination of water quality. Bait to small pieces of good, to be evenly scattered cast, in order to ingest, well improve the bait to eat half and reduce the mutual killing due to food grabbing.
According to the characteristics of the mouth shrimp mayflies day and night, baiting once a day in the evening, the amount of bait for the pro shrimp mayflies 5% to 20% of the weight, and with the pro shrimp mayflies holding eggs, the water temperature, the weather, the type of bait and the quality of the situation and so on appropriate increase or decrease. Cultivation of the early stage, can be appropriate to increase the amount of bait, for the gonadal development of sufficient nutritional requirements.
The pro-shrimp mayflies hold eggs when drilling, and basically do not feed, so it is estimated that most of the pro-shrimp mayflies hold eggs, it is appropriate to reduce the amount of bait. In addition, the pro shrimp mayflies hatch young, into the growth, feeding greatly increased, but also interfere with other holding eggs shrimp mayflies, so it is best to use the cage net and other traps out of the pool.
Daily management
Cultivation period, the pond is necessary to inspect the work, checking the water intake and drainage, mouth shrimp mayfly activities and feeding, water quality, especially the discharge of larvae. Once found that the pro-shrimp mayflies discharged pseudoflea-like larvae, that is, the collection of larvae into the nursery pond for nursery.
Baidu Encyclopedia: Peppered shrimp