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Artificial induced spawning fertilization method of leiocassis longirostris

A technology for artificially inducing labor and long-beaked beetle, applied in the field of freshwater fish farming, can solve the problems of sharp decline in natural output, difficult to catch long-beaked beetle, environmental pollution, etc., and achieve the effect of unifying production and development

Inactive Publication Date: 2014-03-26
QINGDAO BAIZHONG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is suitable for aquaculture in most waters, but due to ineffective resource protection measures in recent decades, excessive fishing, environmental pollution and excessive slaughter of male fish, the natural production has dropped sharply
It is very difficult for fishermen to catch long-snouted squid now.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Selection of broodstock: Select 3-4-year-old fish with a weight of 2-2.5kg as broodstock; mature female fish have 0.4cm-0.6cm long genital process, round and wide genital pores, and mature female fish have light color and skin Smooth, swollen and soft abdomen, with obvious ovary outline on the abdomen, pink genital opening; male genital process is long and pointed, 1-1.2cm long, genital opening is located at the tip of the genital process, and the tail is red; The ratio is female fish: male fish=5:1;

[0016] (2) Drug oxytocin: oxytocin is injected into the thoracic cavity, which is divided into two times. The dose of the first injection is the same for female fish and male fish, and the dose of the first injection is one-third of the total dose; the second injection is separated from the first injection. 5h, the dose of female fish was 2 / 3 of the total dose, and the dose of male fish was 1 / 3 of the total dose; Gently press the abdomen of the female fish with your ...

Embodiment 2

[0020] Same as Example 1, except that 7 mg of dioconone and 1000 IU of human chorionic gonadotropin were co-injected into 1 kg of fish, and the effect time was 10 h.

Embodiment 3

[0022] Same as Example 1, except that 5 mg of dioconone and 900 IU of human chorionic gonadotropin were co-injected into 1 kg of fish, and the effect time was 12 hours.

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PUM

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Abstract

The invention discloses an artificial induced spawning fertilization method of leiocassis longirostris. The method includes the steps of parent fish selection, induced spawning and incubation. Oxytocin adopted for the method is domperidone and human chorionic gonadotropin, and altogether, 3-7mg of domperidone and 800-1000 IU of human chorionic gonadotropin are injected to 1kg of fish. By the adoption of the method, onset time of medicine can be effectively shortened, manpower and material and financial resources can be effectively saved, fries can be designedly and massively produced to meet the requirements of different users for fries, and therefore production can be uniform with development.

Description

technical field [0001] The invention relates to a method for cultivating freshwater fish, in particular to a method for artificially induced fertilization of long-snout catfish. Background technique [0002] Long-snouted catfish, taxonomically belong to Siluriformes, Osmanthidae, and Catfish genus. It is named because its snout is longer than other fishes. It is commonly known as "Jiang Tuan", "Fat Tuo" and "Bai Duan". Long-snout catfish is mainly distributed in the Yangtze River Basin and the lower reaches of major tributaries, and Dongting Lake is one of the main distribution areas. The meat content of long-nosed catfish is as high as 70%, and 13 of the 18 amino acids are higher than grass carp, especially the content of glutamic acid and aspartic acid is as high as 12.05% and 8.51%, respectively. Therefore, the meat of long-snout catfish is tender and delicious, and it is a good nutritional product suitable for all ages. In Sichuan, it is also known as "the first fish i...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 张明
Owner QINGDAO BAIZHONG CHEM TECH
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