Method for improving mating rate of male and female giant salamander parents

Abstract

The invention discloses a method for improving the mating rate of female and male giant salamander parents. The method comprises the following steps of feeding giant salamanders with live egg-carrying freshwater shrimps with the specification of 3-4 cm 30-40 days before the mating period of the giant salamanders, feeding the giant salamanders once every day, enabling the daily feeding quantity to be 3%-5% of the weight, ensuring that the egg-carrying freshwater shrimps are slightly left after the giant salamanders eat the egg-carrying freshwater shrimps, continuously feeding the giant salamanders with the egg-carrying freshwater shrimps for 30-40 days, entering the mating period, and then enabling the female giant salamanders to start to mate in holes. According to the method, the live egg-carrying freshwater shrimps are fed about one month before the mating period, the mating rate of the female and male giant salamander parents is increased by 60% or above, the final mating rate can be increased to 92.5% or above, the bottleneck problem that the mating rate of the giant salamander parents is low in the current situation is solved, and the economic benefits of giant salamander breeding are greatly increased. According to the method, live baits are adopted for feeding, operation is convenient, and the problem of water pollution caused by residual dead baits such as fish blocks does not exist.

Description

technical field [0001] The invention relates to a method for increasing the mating rate of male and female giant salamander parents. Background technique [0002] Chinese giant salamander (Andrias davidianus), referred to as giant salamander, commonly known as giant salamander, is an amphibian animal evolved from fish in the Devonian period of the Paleozoic Era. It is called a "living fossil". It lives in streams in mountainous areas. Living in caves with little sand and backflow water, it is a rare and unique wild animal in my country and is listed as a second-class national protected animal. Giant salamander is a good material for carrying out scientific research on biological evolution and biodiversity, and it also has extensive development value in food, health care, medicine, ornamental and other aspects. In recent years, thanks to the efforts of scientific and technological personnel and farmers, giant salamander reproductive technology has become increasingly mature, ...

AI Technical Summary

Problems solved by technology

Even if the parents of giant salamanders are sexually mature, during the breeding season, the male salamanders discharge the sand and stones in the cave, and are responsible for building and protecting the nests in the cave, while the female salamanders stay in the spawning ditch or another cave, during the breeding season. During the period, female salamanders can mate and lay eggs if they enter the caves of male salamanders, but the mating rate is still less than 60%, which seriously affects the artificial breeding rate of giant salamanders