Question 2: How do shrimp reproduce? Incubation of fertilized eggs are incubated on the body of the female shrimp, and thus the fertilization of the green shrimp is also known as holding eggs shrimp. Water temperature of about 25 ℃, it takes about 20 days to hatch shrimp larvae. Female shrimp in the incubation period, often fanning the abdominal limbs, so that the water around the eggs flow, to provide sufficient dissolved oxygen for the eggs. After 12 days of incubation, the eggs from the initial orange to yellowish, and generate a gray spot, the eggs gradually become greenish gray, then through the egg membrane visible 2 large and black eyes, indicating that the larvae are about to hatch. It takes 1 hour for the hatchlings to emerge from the membrane, and about 4-6 hours for the whole clutch to hatch. During the incubation period of the larvae, 28 to 29 ℃ in the early stage is the most suitable, and 30 to 32 ℃ in the late stage is the most suitable.
There is also a situation where the female shrimp ovulate into the water, the male shrimp in the water ***, and thus fertilization, the female shrimp do not hold the eggs
Question 3: Question. River shrimp how to reproduce, can be raised Some varieties of river shrimp can be fertilized once to produce multiple fertilized eggs, of a shrimp to reproduce shrimp is possible. Water temperature requirements, specific requirements depending on the species of river shrimp, but since it has been holding eggs, do not change the current water temperature is the best choice.
Question 4: How long does it take for a shrimp to reproduce? Ordinary ornamental shrimp, then from holding eggs to the birth of shrimp to 2030 days, the female shrimp reproduction once and then faded once in the mating reproduction
Freshwater lobster is generally the end of October to the following year between March mating and holding eggs, mating time varies in different waters, too early to mate eggs are often immature, too late, the eggs are overcooked and aging. Mating suitable water temperature of 22 ~ 25 ℃, the mating season is best not to catch, so that they hold eggs incubation, reproduction of offspring. Freshwater lobster mating in the spring, summer and fall, can spawn 3 ~ 4 times a year, the general body length of 7 ~ 10 cm, weighing 15 ~ 30 grams of the parent shrimp, the amount of eggs for 220 ~ 270, and the individual size is different, the amount of eggs for the difference is very large. Under normal circumstances, after mating and spawning shrimp need to have 1 ~ 2 months of incubation process (i.e., embryonic development), need to consume a lot of physical strength, and therefore need to strengthen the shrimp to hold the eggs of nutrition and cultivation. Hold egg shrimp incubation of the appropriate water temperature of 22 ~ 27 ℃, incubation time of 6 ~ 10 weeks. Shrimp fry cultivation before the need to clear the pond disinfection, filtration into the water, and then apply organic fertilizer to cultivate natural bait organisms for shrimp fry to feed. General shrimp fry cultivation, stocking larval density of 15-20 million, such as the "soybean paste" method of cultivation, the stocking density can be 16-18 million.
Question 5: small river shrimp breeding in a few months Today is July 1, 2016, my family's river shrimp just dumped the baby yesterday, the tank can see the small shrimp running