In recent years, the monoculture type of blue crab has been rare, especially in the intertidal zone with green crabs, which are multi-species and polyculture. The type of polyculture is relatively complex. The basic principle is to properly breed other economic types. It can purify sediments, form and maintain suitable biological structures in the pond, and create an ecological environment suitable for the living and growing of blue crabs and polycultures. At present, there are more than 10 varieties of fish, shrimp, shellfish and algae. (1) Crustaceans: For example, Chinese prawns, long-working hairy prawn, platyceros prawn, knife-new prawns, and clam-tailed prawns. The stocking specifications of shrimps require that the seedlings more than 3 cm in length after being raised, the seedling quantity is generally about 1000-2000 tails/mu, and the growth rate is faster than the shrimp ponds in the tide. When the water temperature is suitable, the seedlings are released one month later. You can start catching. (2) Fish: The main species are: cockroaches, barracudas, black cockroaches, mudskippers, etc. The pooled organic matter is a good food for these fishes, and the amount of seedlings usually ranges from 20 to 500 tails per mu. (3) shellfish: mainly polyculture of some benthic shellfish, such as oysters, loach, edgy, Philippine scorpion, barley, etc.; for example, polyculture pupa, for example, put the plot to control the pond area 20% or less is appropriate. The surface of the raised shellfish should be retired every year. The flat surface of the central beach can be planted after deep turning and flattening. The amount of seedling per acre is 30-50 kg. (4) Algae: The polyculture of Taiwan's blue crabs and G. striata (Taiwan called asparagus) is more common. The mixed amount of algae can absorb a large amount of dissolved organic matter in the water and increase the dissolved oxygen in the water, which is more conducive to the growth of blue crabs and other economic animals in the pond. (1) The density of polyculture should not be too high, and the species should not be too much. The culture of blue crabs should be the main method. The daily management methods should also be carried out according to the method of breeding blue crabs. If the other varieties of polyculture are too miscellaneous and excessively dense, they will become The distracted guests affected the growth of blue crabs. (2) The selection of polyculture species depends on the conditions of the pond. In particular, the type of pond bottom conditions is in accordance with the habitat of the cultured species. For example, the cross-year culture species is undesirable. In particular, fish species cannot generally be allowed to overwinter in the pond. The number of casualties that will be used for transplanting will be large. Only the raising of the seedlings will be allowed. The pre-occupation condition of the catchers can be met before the low temperature arrives.
The Urine Bag set consists of A drainage bag and A suction device. Qhy-a is the single drainage bag, and qhy-b is the drainage bag + suction device. The drainage bag consists of the bag body, catheter , lifting lug, joint, guard cap, drainage port, drainage bottom plug, anti-reflux device, and current limiting clip .The suction device is composed of negative pressure bottle, drainage tube joint, suction tube joint, suction connection pipe, automatic drainage device, drainage port and bag body.Should be sterile.
It is used for the collection of body fluids (blood, gastric juice, etc.), secretions (sputum, flushing fluid, etc.) and human excreta (urine, etc.) in hospital , clinical departments and during surgery or after surgery.
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Mixed care should pay attention to matters