We can usually eat lobster belongs to the "animal kingdom & gt; arthropods & gt; mollusks & gt; decapods", and then down the points is the main difference. Generally we see the Australian lobster and California lobster belongs to the "no chelae under the order & gt; lobster family", so strictly speaking, they are lobsters. The Maine lobster and freshwater lobster belongs to the "crayfish under the order & gt; crayfish / crayfish family", their scientific name should be crayfish / crayfish. Crayfish because of the size and lobster similar, and both edible, often considered to be a kind of lobster. In terms of scientific classification:

Lobsters have long, thick, spiny antennae, while crayfish have thinner, shorter antennae.

Crayfish have a pair of large chelae (pincers), while lobsters do not have chelae.

The crayfish is actually a smaller relative of the crayfish that lives in freshwater, and is instead separated from the true lobster.

Cooking lobster:

From a food standpoint, the main meat in a large lobster is in the waist and tail portion, so many restaurants sell lobsters with only the lower half of the body (Lobster Tail). But crayfish because the pincers are very large, so in addition to the tail, the pincer meat has very sweet. In addition to steaming the whole, Americans often sell Maine lobster tails at a high price (such as Surf and Turf in steak houses, which is a dish of steak + lobster tails), and then the pincer meat will be boiled and cut into pieces and mixed with Menetz in the bread to eat (New England's famous Lobster Roll).

In Asian practice, fresh Australian lobster can be eaten as sashimi, Maine lobster less so. Other than that, steamed, ginger and scallion, pepper and salt, and spicy are also common ways to cook lobster.

And crawfish have a slightly fishy flavor because they grow up in fresh water and swamps. So whether it's boiled or stir-fried, add a little chili or other spice to keep down the fishy flavor.

Australian lobster

Common lobster

Australian lobster breeding level:

Adequate growth rate

Australian lobster is naturally distributed in subtropical and tropical regions. A good growth rate can be achieved between 18℃-32℃. Oceania region between May and November each year, the water temperature above 18 ℃ for six and a half months. Normal growth can start when the water temperature reaches above 16℃. In order to make full use of the local thermal energy resources, in the Oceania region of Australia lobster seedling release time should be arranged in early May, the starting time for the second half of November.

Stocking techniques and daily management

①Density: 600 young shrimp per mu of 2-3 cm, can be appropriate mixing chub 100, chub 50, grass carp 50. ② micro-flow aquaculture or refill 2-3 times a week with new water. ③ Feeding to take a fixed point, time, quality, quantity feeding, feeding types should be as diverse as possible: such as water hyacinth, water flora, floating celery and other aquatic plants, cow dung, pig manure, artificial pellet feed. You can also feed snails, earthworms, mussels and other animal erbium as appropriate. Feeding 1 time a week hair alcohol over cow dung, 100 kilograms per acre, placed in the corners of the pond, the whole did not enter the water, feeding pellet feed 1 time a day, 6 p.m. shrimp weight 20% of the dosage can be thrown. ④ summer high temperature period should pay attention to increase the amount of water flow or water injection, and the number of water injection, the night can open the aerator to increase oxygen.

Pond conditions

①Pond should be rectangular, the area is not limited to 2-5 acres is good, the water depth of 0.9-1.5 meters, the long axis of the pond should be the same direction as the summer wind. ② pond bottom hard soil, no silt, the wall must have a slope, and the slope should be greater than 3:1. ③ pond should have a good drainage and irrigation system, one end of the upper intake of water, the other end of the bottom of the pool drainage, intake and drainage outlets should be anti-enemy, anti-fugitive mesh cover. ④The bottom of the pond should have about 1/5 bottom area of submerged plant area and enough artificial concealment, such as waste tires, nets, PVC pipes, waste tile tanks, bamboo rafts and so on. ⑤ Conditional ponds can be equipped with oxygenators.

Water quality requirements

①Water source, mainly uncontaminated rivers, streams, lakes, reservoirs and other large bodies of surface water as a water source. Groundwater can also be used, groundwater has the following advantages: a fixed independent water source; no pathogens of wild fish. No pollution. The temperature is relatively stable throughout the year. ② water pH, in the breeding process, there has been a minimum value of 6.10, the highest value of 9.33 can survive, but to 6.5-9.0 is good, the best for neutral alkaline. ③ dissolved oxygen in the water, although the Australian lobster is resistant to low oxygen, dissolved oxygen is less than 1 mg / liter, a short period of time can survive, but if a long period of time in a state of low dissolved oxygen, it will affect its growth and survival rate. Therefore, the pond should be equipped with an oxygenator or other oxygenation equipment when necessary, so that the dissolved oxygen to maintain more than 4 mg / l is appropriate to avoid heavy metals, pesticides, herbicides, oil, chlorine, methane, argon sulfide, high iron content and other things of pollution. ④ Take micro-flow water or regularly add new water breeding, can promote the growth of lobster.