As the temperature rises in the spring, Australian freshwater lobster farmers need to strengthen the pond. When the water temperature reaches 10 degrees centigrade, the Australian freshwater lobster will crawl out of the cave for food. At this time, we need to do the following five points.
1, adding water and fertilizing:
The water level of the pond is added enough to stimulate the Australian freshwater lobster to get out of the hole, so as to open the food early and grow early; at the same time, all the wintering lobsters will come out of the cave together, which is good for the breeding of the lobster and seedling.
After adding water, fermented chicken manure, pig manure, cow manure and other organic manure were fed around 100kg per mu to provide abundant plankton for feeding. In the future, according to the specific condition of the water quality of the pond, the organic manure was applied once a month to ensure the stability of the water quality in the pond and the high density of plankton in the water.
2. Feeding and dropping snails as soon as possible
Australian freshwater lobster is omnivorous, both plant and animal feed can be taken, and the Australian freshwater lobster after overwintering is relatively weak, and needs a lot of food and nutrition to fattening and growing. Therefore, the Australian freshwater lobster after eating is better to feed some animal bait, such as fresh fish and snails, in order to improve the family shrimp. The fullness and survival rate of the shrimp are more conducive to the breeding of the juvenile shrimp and the proper combination of some plant feeds. Note: water temperature is relatively low at this time, and Australian lobster is relatively less. The amount of feeding should be moderate, because the quantity of the pond shrimp is not good, so it should be fed according to the weather conditions, the day in the sunny day can be fed, the cloudy and rainy days are not fed, the feeding amount is generally controlled in 2 hours, and 1 times in the morning and night.
3 in the middle of next month, the snail was placed in the 100-200kg per mu, so that a batch of small snail shells could be produced before and after Qingming. In early spring, the living spiral snail could not be too much, in order to prevent the snail from putting too much fertilizer in large quantities, causing the water quality to grow thin and affect the growth of the lobster. In the later period, some snail could be re placed in June according to the specific conditions.
3, to catch small and reduce the density of lobster in the pond in time
After half a month of eating, Australia's freshwater lobster (egg free shrimps should not be caught) will be sold on sale to reduce the density of freshwater lobsters in ponds. Suggestion: catch the cage with a larger cage, otherwise the mesh will be too small, and the young shrimp will be trapped in the cage, which will affect its normal feeding and growth.
4. Transplanting water grass
Early spring water and grass have just begun to germinate, and it is very easy to be fed by Australian freshwater lobster. Therefore, the feeding of the feed should be strengthened, and the feeding of the freshwater lobster shrimp on the tender shoots of the water and grass should be reduced to ensure the growth of the sprout of the water and grass. For some ponds with less water and grass, the aquatic plants such as gourd, water hyacinth, water and peanuts can be transplanted in the pool in late 4.
The water grass covered area of Australian freshwater lobster aquaculture pond is about 1/3 of the pond, and a variety of different varieties of water and grass should be transplanted in the same pond to ensure that the grass is not removed during the whole culture, and it is transplanted in different places in the pond, shallow water and deep water to meet the needs of lobster feeding, climbing and shelling.
5. Daily management
Once a day, every morning and evening, check the pond once, check the food and activity of the freshwater lobster in Australia, whether there is leakage in the pond or there is a hole to escape the shrimp and so on.