Electric yield improving device of large yellow croakers
A large yellow croaker and discharge electrode technology, which is applied in fish farming, application, climate change adaptation and other directions, can solve the problems of difficult control, mechanical damage to the fish body, etc., and achieves the effects of convenient operation, simple production and novel structure
Inactive Publication Date: 2014-01-15
浙江大海洋科技有限公司
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Problems solved by technology
However, hormone injections are commonly used for large yellow croakers to induce spawning. Operators are required to inject broodstock one by one and judge spawning time through experience. Personnel are required to be on duty day and night. In addition, broodstock are generally large and difficult to control. It often causes mechanical damage to the fish body, and the injection operation requires certain skills, so this method is in the hands of a few technicians
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[0016] Example: refer to Figure 1 to Figure 4 , the large yellow croaker electric production promotion device, including a front end with a front sluice 31 and a rear sluice 32 with a water tank 3, wherein: the inner sides of the front sluice 31 and the rear sluice 32 at both ends of the water tank 3 are provided with a front guide column 4 and a rear sluice. Guide column 5; the front guide column 4 is equipped with a front discharge electrode 1 that can slide up and down; the rear guide column 5 is equipped with a rear discharge electrode 2 that can slide up and down; the front discharge electrode 1 and the rear discharge electrode 2 are connected by pulling wire 6 Pay-off machine 34 is arranged. The front water gate 31 and the rear water gate 32 surround the water tank 3 into an independent water body, which is beneficial to the discharge operation.
[0017] The front discharge electrode 1 has an insulating support frame 11; the support frame 11 is provided with a mesh she...
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The invention discloses an electric yield improving device of large yellow croakers, comprising a water tank, wherein a front sluice is arranged at the front end of the water tank and a back sluice is arranged at the back end of the water tank; a front guide column and a back guide column are arranged at inner sides of the front sluice and the back sluice of two ends of the water tank; the front guide column is provided with a front discharging electrode which can slide up and down; the back guide column is provided with a back discharging electrode which can slide up and down; and a paying-out / off machine is connected between the front discharging electrode and the back discharging electrode through a pulling wire in a drawing manner. The water tank is surrounded by the front sluice and the back sluice to form an independent water body so that a discharging operation is easy to realize. The electric yield improving device of the large yellow croakers has the advantages of novel structure, simplicity in manufacturing, convenience for operation, physical yield improvement, suitableness for improving the yield in batches, no damages to parent fish and the like.
Description
technical field [0001] The invention relates to an artificial production-stimulating device for aquatic animals, in particular to a large yellow croaker electric production-stimulating device. Background technique [0002] At present, there are many ways to induce aquatic animals to lay eggs, mainly physical and chemical methods, but most of these methods have a certain impact on the survival of aquatic animals. Among them, the most commonly used chemical induction methods, such as ammonia seawater immersion induction, are more harmful to the parent body. , not only affects the development and hatching of fertilized eggs, but also the irritating taste of ammonia seawater also affects the health of operators. There are reports on the in vitro maturation-promoting effect of vitamins and seawater immersion on oyster eggs, such as the Chinese invention patent "A Method for Chemically Inducing Shellfish Oviposition", the authorized announcement number CN101331861B, which disclose...
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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 吴常文张建设徐佳晶
Owner 浙江大海洋科技有限公司