Feeding method of controllable bait for fries of Takifugu flavidus

Abstract

The invention relates to a feeding method of controllable bait for fries of Takifugu flavidus. The feeding method is characterized by comprising the following steps of: taking egg yolk as the bait during the initial stage when the fries are aged 2-10 days, and uniformly splashing and feeding in a full pool six times per day; taking Artemia larvae which are justly hatched as the bait when the fries are aged 7-10 days, and supplementing twice per day, wherein the feeding density is 2-3 larvae / ml; taking the Artemia larvae as the bait when the fries are aged 11-19 days, and supplementing twice per day, wherein the feeding density is 3-5 larvae / ml; taking frozen copepods as the bait when the fries are aged 14-19 days, uniformly splashing and feeding in the full pool, and supplementing six times per day, wherein the feeding density is 4-6 copepods / ml; taking the frozen copepods as the bait when the fries are aged 20-25 days, uniformly splashing and feeding in the full pool, and supplementing six times per day, wherein the feeding density is 4-6 copepods / ml; taking frozen large Artemia as the bait when the fries are aged 25-35 days, melting the bait at normal temperature, feeding to a bait table, and supplementing three times per day; and feeding compound feed when the fries are aged 30-35 days, placing 4-6 blocks of the compound feed on each bait table, and feeding twice per day, wherein the compound feed is kneaded into pastes.

Description

technical field [0001] The invention relates to the cultivation of chrysanthemum yellow puffer, in particular to a method for feeding controllable bait for fry of chrysanthemum yellow puffer. Background technique [0002] Takifugu flavidus (Takifugu flavidus) belongs to Fuguformes, Fugu suborder, Fuguidae, Fugu genus, mainly distributed in the East my country Sea, Yellow Sea and Bohai Sea of ​​China. It feeds on invertebrates such as crustaceans and shellfish and small fish, and has high nutritional and medicinal value. Its muscles are as white as frost, the meat tastes plump, tender and delicious, rich in protein and rich in nutrition, and is known as the first of the "three delicacies of the Yangtze River". At present, among the species of puffer fish cultured in China, the market price of puffer is the highest, reaching 150-200 yuan / kg. In addition, tetrodotoxin (TTX) extracted from the liver and gonads of Pufferfish chrysanthemum is a strong neurotoxin, which is used to...

AI Technical Summary

Problems solved by technology

[0003] At present, the bait for artificial breeding of puffer chrysanthemum is mainly seawater rotifers-artemia larvae-fresh seawater copepods, etc. Although these fresh baits are convenient to feed and easy to manage, they also have the following disadvantages: 1) It is difficult to match the peak period of cultivating fresh and live bait with the palatable bait time for fry cultivation, and it is also affected by environmental and weather conditions, especially the open bait—sea rotifers. There is often such a situation: when there is a large demand for seedling production, rotation The worm peak has not arrived, so it cannot be supplied in large quantities; and when the seedling production is not needed, there are a large number of rotifers in the bait cultivation pond; 2) The cultivation of seawater fresh bait requires certain earthen ponds, especially for seawater copepods and copepods It is difficult to cultivate, there is no obvious peak period, even during the peak period, the density of copepods is also very low, which causes certain problems for the collection of bait, and this also creates a restrictive factor for large-scale seedling production; 3) fresh and alive Among the baits, it is very difficult to breed bait for large individuals, especially when the fries of chrysanthemum yellow pufferfish reach 1.5cm in total length, the fry are very aggressive. At this time, even large copepods cannot satisfy the fry's preference The requirement for bait with particle size equivalent to the size of the mouth crack. If there is no palatable bait, the puffer puffer fry will bite each other, and the probability of mutual killing will increase, which will reduce the survival rate of fry production.