Folding fish nest with spawning ground substance board replaceable

Abstract

The invention provides a folding fish nest with a spawning ground substance board replaceable and belongs to the technical field of fingerling breeding of aquaculture. The fish nest mainly comprises a movable support, a spawning board, a top board and a bottom board, wherein the top board and the bottom board are provided with holes. The fish nest is foldable, thereby being convenient to package, transport, clean and store and being reusable. Different ground substances can be stuck to the spawning board. The spawning fish nest can be formed by unfolding the support, straightening connecting rods, screwing fixing members tightly and inserting the spawning board. The fish nest enables the spawning boards with different ground substances and fish nest placing methods to be selected according to ground substance and spawning position preference of nesting fishes, so that the fishes are enticed to enter the nest to mate and spawn. The spawning board can be replaced timely after spawning of fishes. Spawning boards with attached germ cells can be hung in pool water in a centralized manner for hatching. The fish nest can greatly increase the collecting efficiency of germ cells of fishes, guarantee batch hatching of synchronously-growing embryos, and guarantee the continuity and stability of technological processes of fingerling breeding. The fish nest is widely suitable for artificial reproduction of nesting spawning fishes in fresh water, saline-fresh water and sea water.

Description

technical field [0001] The invention belongs to the technical field of aquaculture seed breeding, and relates to a foldable fish nest capable of replacing an oviposition matrix plate. Background technique [0002] Whether it is freshwater fish, brackish water fish or marine fish, there are always some groups such as gobies, gobies, gobies, most fish in Siluriformes, perciformes sunfish Fishes such as the family have the habit of building nests and spawning, that is, during the reproductive season, male fish or female fish need to choose a substrate suitable for spawning (such as muddy or rocky caves, gravel, sand, rough surfaces, aquatic plants, aquatic plants, etc.) Tree roots, etc.) do some cleaning, and then circle or guard them to form so-called ovipositor holes to attract mature female fish to enter them to mate and lay eggs. In addition, most male fish have the habit of guarding eggs during the development of fertilized eggs or embryos until the larvae hatch. Some ma...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is the key technical innovation made for the problem of setting up artificial fish nests that occur in the breeding process of fish fry that are listed above or have similar spawning habits, that is, provide a replaceable spawning substrate foldable fish nest

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