Fry breeding device for fishery

The fish fry breeding device comprises a breeding pond, a controller and an oxygen increasing device, an anti-blocking structure is arranged in the breeding pond, a temperature control mechanism is arranged in the controller, and a feeding mechanism is arranged on one side of the top end of the breeding pond. The mounting seat is sleeved on the culture pond, then the fixing rod is rotated to be in contact with the outer wall of the culture pond for clamping and fixing, fish feed is filled into the feed storage barrel, then the motor is started to drive the feed storage barrel and the discharge port to rotate to the position under the feed storage barrel, and meanwhile the displacement sensor detects a rotation numerical value and feeds the rotation numerical value back to the second single-chip microcomputer. And when the feeding time period reaches a set numerical value, the motor is started through the second single chip microcomputer to drive the feed storage barrel and the discharge port to rotate to the