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Asexual cultivation method of female wood frog

A breeding method, single-sex technology, applied in animal husbandry and other fields

Inactive Publication Date: 2004-06-16
李溪莹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the traditional natural sex change, the ratio of female frogs to male frogs is actually only 3:7 or 4:6, and the number of male frogs is obviously more than that of female frogs.

Method used

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  • Asexual cultivation method of female wood frog
  • Asexual cultivation method of female wood frog
  • Asexual cultivation method of female wood frog

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Select Rana fertilized egg embryos to start feeding tadpole feed bait containing estrogen between the ages of 7 and 30, because at this stage Rana tadpoles deal with the early stage of sexual differentiation, fertilized egg embryos have self-renewal, high-level cultivation, and cell groups have not yet differentiated , and the tadpoles are small, each 0.4 grams, less feeding. It not only saves medicine, but also is easy to mutate into a female wood frog. Rana tadpole feed is made of wheat bran, rice bran, soybean powder, yellow powder, fly maggot pulp, etc. Take 150 mg of estrogen powder and dissolve it in 50 ml of 95% alcohol, mix it evenly into 5000 g of tadpole feed, and dry it in the shade for later use . Feeding method. Take tadpoles aged 7-20 days as an example. At this time, the weight of tadpoles is about 0.5 grams per tadpole, which is 5000 grams per 10,000 tadpoles. Calculated by throwing 4% of the feed, that is, 200 grams of bait is fed every day. 2-3 vot...

Embodiment 2

[0024] The tadpole breeding pool between the ages of 7 and 30 is mixed with estrogen solution at a ratio of 0.5 mg / 1000 ml. From the age of 7 to the age of 30, it is best to filter the water in the tadpole pool once a day to keep the water meter clean.

[0025] And there is sufficient oxygen, or the two pools are used alternately, and the temperature is controlled at 12°C to meet the nutrition of tadpoles. This method is simple, but a waste of drugs.

[0026] In addition, the Rana unisexual female frog breeding method uses estrogen at a concentration of 0.5-mg estrogen per liter of water. From the tail bud stage to the operculum stage, it is sprayed or sprinkled on the feed in the breeding pond. Hatched tadpoles.

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Abstract

A monosexual wood frog cultivation process wherein from tailbud stage to gill cover completion stage, female hormone with concentration of 0.5 mg per liter water is applied, the female mutagenesis ratio is 80-100%, and no influence to polliwog metamorphosis and wood frog growth is found, the advantages of the invention are wide range of gender transformation and large benefit dosage range.

Description

[0001] Field [0002] The invention relates to the cultivation technology of the forest frog, in particular to a method for cultivating the single-sex female frog of the forest frog. Background technique [0003] With the rapid development of the forest frog breeding industry, the breeding method of forest frogs has also developed from the traditional free-range wild forest to semi-artificial breeding and fully artificial breeding. High-density, fast and intensive farming of forest frogs has become unprecedentedly active. The application of high technology has enabled the industry to develop sustainably, steadily and healthily. However, due to the traditional natural sex change, the ratio of female frogs to male frogs is actually only 3:7 or 4:6, and the number of male frogs is obviously more than that of female frogs. Contents of the invention [0004] The purpose of the present invention is to provide a method for cultivating unisexual female frogs of Rana sylvatica, and ...

Claims

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Application Information

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IPC IPC(8): A01K67/02
Inventor 苟仕金李溪莹苟鸿鹰
Owner 李溪莹
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