Net piece feeding method for artificial seedling of adhesion-type dual-shell animals

Abstract

The invention discloses a net piece feeding method for artificial seedling of adhesion-type dual-shell animals. The feeding method comprises the steps of firstly determining the opportunity for feeding the net pieces, calculating the number of the net pieces required by a culturing pond, designing the feeding line number and the line spacing of the culturing pond, hanging and feeding a net by virtue of a net feeder, and finally arranging the net pieces, so as to finish the whole net feeding process, wherein the main body of the net feeder is of a rod-shaped net frame, a plurality of net teeth are arranged on the net frame, and handles are respectively arranged at two ends of the net frame. The feeding method is applicable to multiple adhesion-type dual-shell animals such as bay scallops, chlamys farreri, scapharca broughtonii and the like. The net piece feeding method has the advantages that the line production can be adopted, the operation steps are simple, lots of labor is not required, each operator is detailed in work division and is skilled in operation, so that the large-scale net piece feeding operation has the characteristics of high efficiency and convenience; besides, the adopted net feeder is simple in structure, easy to produce, low in production cost and convenient to generalize in large scale.

Description

technical field [0001] The invention relates to a method for putting meshes into attached bivalve artificial seedlings, belonging to the field of aquaculture. Background technique [0002] In the production of attached bivalve artificial seedlings, seedling picking is the key link in the whole process. At present, the attachment bases for seedling collection include mesh and palm curtains; among them, the mesh is made of polyethylene, which has good performance in collecting eye-spot larvae, and is an important attachment base for seedling collection. As of now, there are two methods of delivering mesh. One is the "fixed" feeding method, that is: first lay out multiple rows of polyethylene ropes in the pool, and then tie the nets to the polyethylene ropes one by one, so that the nets are fixedly suspended in the cultivation pool. This method can distribute the nets neatly in rows, the position of each net is fixed, and the water flow in the pool is smooth; but the operatio...

AI Technical Summary

Problems solved by technology

However, after entering the 21st century, the water body for seedlings has expanded rapidly, and the above-mentioned method is no longer suitable for the increasing production scale, and is gradually replaced by the "free-style" feeding method.

The "free style" feeding method refers to the method of directly throwing the mesh pieces into the cultivation pool one by one. This method is easy to operate, improves the speed of adding the mesh pieces, and saves labor and time; but the distribution of the mesh pieces in the pool is uneven, and often occurs Seats and piles, which impede water flow in the tank and affect spat growth and survival by causing excessive local distribution of spat

It can be seen that the above two mesh delivery methods have their own advantages and disadvantages, and both need to be improved.

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