Breeding method of loach

Abstract

The invention discloses a breeding method of the loach, which can be used for improving the spawning expediting rate and the fertilization rate of the loach and the livability of the loach seedlings. The breeding method of the load comprises the steps of: a. respectively breeding the male loach and the female loach a half month before spawning expediting; b. adding a biological odinagogue into forage one week before spawning expediting, wherein the biological odinagogue specifically comprises 15-20g of Chinese angelica, ligusticum wallichii, folium artemisiae argyi, andrographis paniculata, rehmanniae vaporata and compound vitamins respectively, and the adding quantity is that 5-10g of the biological odinagogue is added into each kilogram of the forage, and continuously feeding the forage which is added with the biological odinagogue for 7 days; and c. making sets according to the proportion that the ratio of the female loach to the male loach is 1:1.5, and injecting 100-150 international units of HCG (human chorionic gonadotropin) into each loach. The breeding method has the beneficial effects that the female loach and the male loach are synchronously estrous after the breeding method is used, so that the spawning expediting rate and the fertilization rate of the loach are greatly improved. After a preferable mode of the breeding method is adopted, the cost can be reduced when the seedlings are bred, and the bait with an enough quantity can be timely provided, so that the livability of the loach seedling is guaranteed, and the large-scale production is realized.

Description

technical field [0001] The invention relates to aquaculture technology, in particular to a loach breeding method. Background technique [0002] Loach is a kind of economic fish with high commercial and nutritional value, which can be cultivated in a wide range, but seed is the key factor restricting the scale of its cultivation. At present, the main source of cultured seed is to catch wild seed and artificially propagated seed. At present, semi-artificial breeding is mainly adopted, and the hatching rate of artificial breeding loach is low. In the later opening stage of larvae, a large number of deaths are prone to occur due to insufficient or unsuitable bait for opening. Can't meet the needs of large-scale production. Contents of the invention [0003] The invention aims to provide a loach breeding method for improving the induced labor rate, the fertilization rate and the survival rate of loach seedlings. [0004] In order to realize above-mentioned technical effect, ...

AI Technical Summary

Problems solved by technology

At present, semi-artificial breeding is mainly adopted, and the hatching rate of artificial breeding loach is low. In the later opening stage of the larvae, a large number of deaths are prone to occur due to insufficient or unsuitable bait.

Unable to meet the needs of large-scale production