Can Australian lobsters be farmed in China? A detailed guide to farming techniques
Australian lobsters are deeply loved and welcomed by Chinese gourmets, and many farmer friends in the aquaculture industry seem to see a business opportunity, all wanting to ask whether Australian lobsters can be farmed in China? After all, Australian lobsters are a foreign product. Today I will answer your questions: can Australian lobsters really be farmed in China? And if so, what should be noted when farming Australian lobsters?
Can Australian lobsters be farmed in China
1. Australian lobsters are currently rarely farmed domestically. The scientific name of the Australian lobster is the Australian rock lobster, or ornate spiny lobster. Australian lobsters are naturally distributed in subtropical and tropical regions.
2. Australian lobsters are mainly found in Oceania, distributed in southern Australia and on the Australian island of Tasmania. In the Oceania region, the period each year from May to November when water temperature is above 18°C lasts 6 and a half months.
3. When water temperature reaches above 16°C, Australian lobsters can begin to grow normally. For ordinary commercial shrimp, juveniles weigh 100-200 grams, and adult shrimp weigh over 750 grams. They can live normally at water temperatures between 5-35°C and salinity between 17-24.
Farming techniques for Australian lobsters
1. Water source: mainly unpolluted surface water from large water bodies such as rivers, lakes and reservoirs. Groundwater can also be used; groundwater has the following advantages: a fixed, independent water source; no wild fish carrying pathogens; no pollution; and relatively stable temperature year-round. As for the pH value of the water, during farming the lowest value recorded was 6.10 and the highest was 9.33, and they could survive at both, but 6.5—9.0 is preferable, ideally neutral to slightly alkaline.
2. Dissolved oxygen in the water: although Australian lobsters tolerate low oxygen and can survive for a short time at dissolved oxygen below 1 mg/L, being in a low-dissolved-oxygen state for a long time will affect their growth and survival rate.
3. Therefore, ponds must be equipped with aerators or other aeration equipment when necessary, so that dissolved oxygen is kept above 4 mg/L, and contamination by heavy metals, insecticides, herbicides, oil, chlorine, methane, hydrogen sulfide, high iron content and the like should be avoided. ④ Adopting micro-flow water or regularly adding fresh water for farming can promote lobster growth.
4. The pond bottom should be hard soil with no silt, and the pond walls must have a slope, with the slope greater than 3:1. The pond must have a good irrigation and drainage system, with water entering at the top of one end and draining from the bottom of the other end, and both the inlet and outlet must have protective screens to prevent predators and escape.
How to clean Australian lobsters
1. Place the lobster belly-down, then lift up the tail, and insert a chopstick into its body from the base near the tail fan. Then pull the chopstick out, and a foul-smelling liquid will be discharged along with it; if not removed, it will affect the taste. Not only must you purge it of urine, you must also remove its intestinal tract (also called the sand line). Home-style recipes, recipes for tonifying deficiency and nourishing the body, recipes for supplementing yang, and strengthening the waist and kidneys.
2. When cleaning an Australian lobster, first place the lobster belly-down, then lift up the tail, insert a chopstick into its body from the base near the tail fan, then pull the chopstick out, and a foul-smelling liquid will be discharged along with it; if not removed, it will affect the taste. In addition, the intestinal tract of the lobster (also called the sand line) must also be removed.
Can an Australian lobster still be eaten after it dies
1. Under normal circumstances, if it has not been dead long, or if it was frozen promptly, it can still be eaten, though it will certainly not be fresh enough or tasty enough.
2. If too much time has passed, it cannot be eaten, as a large amount of bacteria will be produced. Keeping it frozen in the refrigerator is not a big problem, but when preparing the lobster you should heat it for a while longer, and only eat it once you are sure it is completely cooked through. Because lobsters are high-protein organisms and carry many bacteria themselves, once a lobster dies the bacteria immediately decompose it, and eating it can easily cause poisoning and diarrhea.
3. If it has not been dead long, it is fine; if too much time has passed, it cannot be eaten. A large amount of bacteria will be produced. Keeping it frozen in the refrigerator is not a big problem, but when preparing the lobster you should heat it for a while longer, and only eat it once you are sure it is completely cooked through; if it has been dead too long, it cannot be eaten.
From the above, it can be seen that Australian lobsters are currently rarely farmed domestically. Australian lobsters can also be called Australian rock lobsters, or ornate spiny lobsters. Australian lobsters are mainly distributed in subtropical and tropical regions. Therefore, in China, Australian lobsters are rarely farmed, and the farming techniques are not mature, so it is not advisable for everyone to rush into raising Australian lobsters.