A chemical method to effectively avoid self-fertilization of Tridacna mussels

Abstract

The invention discloses a chemical method for effectively avoiding self-fertilization of tridacna. The method includes: allocating ID numbers to all tridacna subjected to induction, respectively placing into a sperm collection drum, timing from spermination in large quantity, obtaining sperms after spermination for 2-3min, filtering through a 500-mesh bolting silk screen to obtain filtrate which is sperm fluid, and marking +ID numbers ; moving the tridacna from the sperm collection drum into an ovum collection drum containing medicated bath liquid, wherein the liquid level of the medicated bath liquid is at least higher than a highest position of the tridacna; after ovulation for 15-20min, taking out the tridacna to obtain ovum cell liquid, filtering the ovum cell liquid through a 300-mesh bolting silk screen to obtain ovum cells on the bolting silk screen, cleaning the ovum cells on the bolting silk screen with seawater, and marking +ID numbers; checking sperm and ovum gamete quality, abandoning low-quality gametes, and subjecting the sperms and the ova different in source according to the different ID numbers to artificial fertilization as required.

Description

technical field

[0001] The invention belongs to the fields of giant clam shellfish breeding and ecological resource restoration in the marine aquatic industry, and in particular relates to a chemical method for effectively avoiding giant clam shellfish self-fertilization. Background technique:

[0002] Tridacna shellfish is an important marine economic shellfish. Its meat is sweet and crisp, and it has been reported to have the effect of nourishing yin and nourishing yang. At the same time, its shell can be carved and processed into valuable handicrafts. There used to be a large number of distributions in the South my country Sea. According to data, there are mainly species of giant clams, saffron clams, scaled clams, and oysters in the South my country Sea. At present, the library-type giant clam is nearly extinct in my country, and other species of giant clam are also facing unfavorable situations such as illegal harvesting and digging, as well as changes in the ecological...