A kind of ecological breeding method of chrysanthemum yellow oriental puffer and white prawn

Abstract

An ecological breeding method for jointly breeding exopalaemon carinicauda in takifugu flavidus comprises fingerling breeding, seed shrimp breeding, daily management and harvesting of the takifugu flavidus and the exopalaemon carinicauda, and is characterized in that when the water temperature of an outer pond is kept to be 14-15 DEG C, overwintered fingerling is bred in the outer pond, and one aerator is equipped for each 3-5 mu of a pond; before breeding, firstly, the pond is cleared and sterilized; the pond is filled with water after 48 hours of sterilization, the water occupies two thirds of the pond, and the salinity is 5-15; after one week of water filling, the fingerling is bred, and summerlings are bred according to the breeding density of 3,000-5,00 0 fish per mu in the beginning of July; the breeding density of two-age fingerling is 1,000-1,200 fish per mu; the breeding density of three-age fingerling is 800-1,000 fish per mu, and water is added to 1.5m after breeding of the fingerling; in June and July, seed shrimps are scattered into a takifugu flavidus aquaculture pond, and 1.5-3 kilograms of seed shrimps are bred for each mu; feeding is performed for two times every day, the feeding amount per day is 3-8% of the weight of fish, fish bait is eel feed containing 45% of crude protein, and water is changed once every two weeks; and in the mid-to-end November, the takifugu flavidus is caught firstly, the exopalaemon carinicauda is harvested in December, and finally, the pond is cleared for fish catching.

Description

technical field [0001] The invention relates to aquaculture, in particular to an ecological breeding method for rearing chrysanthemum chrysanthemum fugu and white prawns. Background technique [0002] Chrysanthemum yellow puffer ( Takifugu flavidus ) belongs to the order Pufferidae, suborder Pufferidae, family Pufferidae, and the genus Fugus. It is mainly distributed in the East my country Sea, the Yellow Sea and the Bohai Sea. It feeds on vertebrates and small fish, and has high nutritional value and medicinal value. It is known as the first of the "three delicacies of the Yangtze River". Its muscles are as white as frost, the meat tastes plump, tender and delicious, rich in protein, and rich in nutrition. Its internal organs contain highly toxic nerve hormones, called tetrodotoxin (TTX), which is extremely valuable in medicine. Among the species of puffer fish cultured in China, the market price of puffer with chrysanthemum yellow is the highest, reaching 150-200 yuan / kg....

AI Technical Summary

Problems solved by technology

[0004] At present, Fugu chrysanthemum is often cultured alone in ponds. Although the breeding technology is relatively mature, there are some problems in monoculture: 1) Because Fugu chrysanthemum has a large mouth crack, some feed is often scattered during the process of biting the dough-like eel feed The chrysanthemum yellow oriental puffer will not eat these feed debris, and often sink to the bottom to rot, which not only wastes feed, but also spoils the water quality; low, and the yield per mu is only 500-600 catties when harvested, which does not make full use of the pond space; 3) In the monoculture ponds of Chrysanthemum chrysanthemum fugu, it is often easy to form dominant species of aquatic animals such as copepods, and these aquatic animals will interact with farmed fish. Competing for oxygen in the water body will easily lead to hypoxia in the water body, and the death of the yellow oriental puffer anoxic floating head. In addition, these dominant species of aquatic animals will die collectively after reaching a certain peak density. These dead individuals will easily cause water quality to deteriorate.