A kind of breeding device for large yellow croaker

Abstract

The invention provides a device for breeding a large yellow croaker and belongs to the field of marine product breeding. The device comprises a fodder cylinder and a linear air cylinder, wherein the fodder cylinder is fixed through fixing rods I; an elastic feeding net is fixedly connected to an opening in the lower end of the fodder cylinder; the linear air cylinder comprises a cylinder body and a piston rod; the end part of the piston rod is fixedly connected with a cylindrical punch block; the linear air cylinder is fixed through fixing rods II; the punch block can move along the axial direction of the fodder cylinder; a loading device is also arranged on the side wall of the fodder cylinder and comprises a loading pipe which is inclined upwards; one end of the loading pipe is communicated with the fodder cylinder; the other end of the loading pipe is positioned on the bank of a pond; the outer wall of the fodder cylinder is also fixedly connected with a contamination draining device; the contamination draining device comprises a linear motor; a motor shaft of the linear motor is fixedly connected with a contamination accumulating plate; the contamination accumulating plate is positioned on the bottom of a pond; a water through hole I is formed in the contamination accumulating plate. According to the breeding device, water exchange period is prolonged, the quality of water can be kept fresh for a long time, the cost is low, and waste of a fodder is reduced.

Description

technical field [0001] The invention belongs to the field of mariculture and relates to a cultivation device for large yellow croaker. Background technique [0002] Large yellow croaker, Osteichthyes, Perciformes, Totoabaidae, Yellow croakers. Also known as yellow croaker, king fish, big fresh, big yellow croaker, red melon, golden dragon, golden dragon, sweet-scented osmanthus yellow croaker, big croaker, red mouth, totoaba, stone fish, cucumber fish. It is one of the traditional "four seafood" (large yellow croaker, small yellow croaker, hairtail, squid). Body laterally flattened, tail peduncle about 3 times as long as high. Head larger, with well-developed mucous cavity. The lower jaw is slightly prominent. There are 56-58 scales on the lateral line, and there are 8-9 scales between the starting point of the dorsal fin and the lateral line. The dorsal fin has 9-11 spines and 27-38 (usually 31-33) rays. Anal fin with 2 spines, 7-10 rays, second spine equal to or slig...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to aim at the above-mentioned problems existing in the prior art, and to provide a kind of cultivation device for large yellow croaker, this cultivation device for large yellow croaker has increased the water change cycle, can keep water quality fresh for a long time, and the cost is low. Low, reduces the waste of feed, and solves the problems of short water change cycle, high cost and unreasonable feeding method in the existing large yellow croaker breeding method

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