Breeding method capable of realizing all-year spawning of soft-shelled turtles

Abstract

The invention relates to the technical field of aquaculture, in particular to a breeding method capable of realizing all-year spawning of soft-shelled turtles. The method particularly comprises the steps: selecting healthy and disease-free soft-shelled turtles at the age of 3 to 4 years, wherein the weight of single soft-shelled turtle is 1.5 to 1.8 kg, the ratio of female soft-shelled turtles to male soft-shelled turtles is 1:2, the female soft-shelled turtles and the male soft-shelled turtles are fed separately except for a mating time which is one day; and in the feeding period of the soft-shelled turtles, maintaining the environment temperature of the soft-shelled turtles to be 25 to 27 DEG C, promoting the soft-shelled turtles to mate after feeding with pre-mating feed for 10 days, continuously feeding with after-mating feed for 10 to 12 days after mating of the soft-shelled turtles, continuously feeding with recuperation-period feed for 5 days after the soft-shelled turtles spawn, by such a cycle, all-layer spawning of the soft-shelled turtles is guaranteed. By adoption of the breeding method provided by the invention, the female soft-shelled turtles can lay more and high-quality eggs in the breeding period, the fertilization rate is more than 99.5 percent, the number of each nest of eggs is 25 to 30, and the weight of single egg is 6.8 to 7.5 g.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a soft-shelled turtle egg-laying culture method throughout the year. Background technique [0002] Soft-shelled turtle, also known as soft-shelled turtle or turtle, is an oviparous amphibian reptile. Its head is like a turtle, but its carapace does not have turtle-like stripes. The edge is soft and skirt-like, and its color is dark green. The soft-shelled turtle often lives in the mud and sand at the bottom of the water, and likes to eat small animals such as fish and shrimp, as well as melon peels, grasses and grains. The soft-shelled turtle meat is delicious, and every 100 grams of meat contains 16.5 grams of protein, fat, grams, and calcium, phosphorus, iron, etc. It has high nutritional value and is a nourishing treasure. Therefore, it is known as "gourmet meat with five flavors". It is not only delicious, high in protein and low in fat, but also a nourishing treasure c...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing soft-shelled turtle spawning period is short and the spawning amount is greatly affect