Efficient breeding method suitable for limuli from germ cells to 2-age phase

Abstract

The invention discloses an efficient breeding method suitable for limuli from germ cells to a 2-age phase. The efficient breeding method includes the following steps of a, assembling a simple hatching device: using glass steel buckets as a germ cell hatching place and using plastic baskets as hatching baskets, wherein the hatching baskets stay on the surface of water, and sufficient dissolved oxygen (DO) exists; b, hatching germ cells: placing a plurality of the hatching baskets into each glass steel bucket, placing 3000 to 8000 germ cells with the thickness of 3cm to 6cm into each hatching basket, hatching 70 thousand to 150 thousand germ cells in each glass steel bucket, and subjecting the hatching baskets to microaeration, wherein conditions that the water temperature is 28 to 32 DEG C, the salt degree is 20 to 32 ppt, pH is 7.6 to 8.5, and DO>=6mg / L are guaranteed, and germ cells break off after 36 to 45 days of embryonic development to become 1-age limulus larvae; c, breeding 1-age to 2-age limuli; d, stocking 2-age limuli, wherein after 2 ages, limulus larvae begin to feed and are subjected to microaeration stocking in a sanded environment at a density of 900 to 1200 per square meter. Compared with traditional limulus breeding methods, the efficient breeding method has the advantages that breeding efficiency is increased by 15-30 times, and the efficient breeding method is suitable for large-scale limulus artificial breeding.

Description

technical field [0001] The invention relates to the technical field of modern rare animal breed breeding, in particular to a high-efficiency breeding method suitable for horseshoe crabs from fertilized eggs to the second instar stage. Background technique [0002] Horseshoe crabs belong to the phylum Arthropoda, the subphylum Chelicidae, the class Limostomia, the order Xyphobia, and the family Limulidae. Existing species of horseshoe crabs are few, and their distribution is narrow. According to their shape and distribution characteristics, they can be divided into two subfamilies, three genera and four types. Among them, the Limulinae subfamily has only one species of Limulus and L polyphemus, which are distributed in the east coast waters of North America; and the Tachypleinae subfamily has two genera, which are distributed in the southeast coast and east coast waters of Asia. Among them, Tachypleus has two species: T. tridentatus and T. gigas; Carcinoscorpius has only one...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to change the traditional cumbersome incubation process of horseshoe crabs and the low cumulative survival rate of cultivation before the 2nd age, improve the survival rate of horseshoe crabs from fertilized eggs to the 2nd age, simplify the artificial breeding process of horseshoe crabs, and create a set of simple , efficient artificial breeding methods