A sorting device suitable for fish farming in rice fields

Abstract

The invention discloses a sorting device suitable for fish breeding in paddy fields, which comprises a first sorting box, a second sorting box and a third sorting box which can be separated and placed sequentially from top to bottom; the volume of the three sorting boxes is Increase in turn, and the upper ends of the three sorting boxes are all provided with openings; and the opening of the second sorting box is set to match the size of the bottom of the first sorting box, and the opening of the third sorting box is set to match the size of the bottom of the second sorting box. Fits in size. The classification method of this device can not harm the fish to the greatest extent, and the fish can actively swim to the next layer of the classification box under the lure of the bait, so as to realize the classification of fish and save working time. It is more suitable for classification in the middle stage of breeding and In the classification of ornamental fish, there is no rush to sell and no harm to fish to the greatest extent.

Description

technical field [0001] The invention relates to the field of fish breeding and fish separation equipment in paddy fields, in particular to a detachable fish breeding and separation device. Background technique [0002] In the prior art, breeding fish in paddy fields is a relatively popular method that is more beneficial to fish and paddy field cultivation. However, in the cultivation of paddy field fish, when the final catch and sales are carried out, different body sizes need to be harvested. Classify fish of different sizes; sort out some smaller fish, collect some large fish for sale, and in the prior art, the separation of fish is usually sorted manually, and the Classify and separate the size and weight of the fish, and sort them one by one, which is a waste of physical strength and time for the staff; and not only when the fish is caught and sold, it is necessary to separate the fish, but also during the growth of the fish. There will be purposeful classification of f...

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Problems solved by technology

[0002] In the prior art, breeding fish in paddy fields is a relatively popular method that is more beneficial to fish and paddy field cultivation. However, in the cultivation of paddy field fish, when the final catch and sales are carried out, different body sizes need to be harvested. Classify fish of different sizes; sort out some smaller fish, collect some large fish for sale, and in the prior art, the separation of fish is usually sorted manually, and the Classify and separate the size and weight of the fish, and sort them one by one, which is a waste of physical strength and time for the staff; and not only when the fish is caught and sold, it is necessary to separate the fish, but also during the growth of the fish. There will be purposeful classification of fish and fish size classification in the culture of ornamental fish. This classification usually requires manual classification. On the one hand, it will cause certain damage to ornamental fish and growing fish. On the other hand, it is a waste of time and energy

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