Auxiliary device for blood collection of live flounder and flounder

Abstract

The invention relates to an auxiliary device for collecting blood of a live flounder. The auxiliary device comprises a base plate, an arc flat ruler is fixedly installed at the right end of the base plate, a carrying sloping plate is hinged to the left end of the base plate, is arranged on the flat ruler through a flat ruler penetrating hole in a sleeving mode and rotates around a hinged shaft, the carrying sloping plate is limited and fixed through a cutting sleeve, and a strip-shaped slideway hole is manufactured in the surface of the middle of the carrying sloping plate; a sliding block is installed on the carrying sloping plate, fixing nuts are embedded in the sliding block, a fixing bolt located on the lower portion of the carrying sloping plate penetrates through the strip-shaped slideway hole and is in threaded connection with a fixing nut, and the carrying sloping plate and the sliding block are fixed through the screwed fixing bolt and the screwed fixing nut; an injector for blood sampling is installed on the sliding block and is fixed to the sliding block through a bandage. The needle entering angle and depth can be adjusted, accuracy of the needle entering angle and depth is improved, faults caused by random operation are reduced, and the collection success rate is increased.

Description

technical field [0001] The invention belongs to the technical field of aquaculture equipment, and in particular relates to an auxiliary device for blood collection of live flounder and flounder. Background technique [0002] Diseases and molecular biology of flounder and flounder are currently hot spots in the industry. The blood of fish is of great significance to the research of molecular biology and disease. In practice, taking blood is a headache. There are three common methods of blood collection: (1) insert the needle below the lateral line of the fish, and then insert the needle into the vein to take blood after touching the spine; (2) take blood from the heart, and insert the injection needle directly into the pericardial cavity; (3) ) to take blood by docking the tail. The latter two methods obviously lead to the death of the fish. The use of a syringe to collect blood from the spinal vein is sufficient, accurate, non-polluting, and does not endanger the life of...

AI Technical Summary

Problems solved by technology

However, this method is difficult to operate: the accurate angle and depth of the needle determine whether the blood can be drawn quickly and successfully. In practice, due to the instability of the sampling environment and the stress of the fish body, it is often easy to cause the failure of the extraction. Repeated operations waste time and cause damage to the fish, so the application of this method is limited

The inconvenience of blood collection from live fish affects work efficiency to a certain extent

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