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Early-period gender judging method for soft-shell turtles

An identification method and technology of Chinese soft-shelled turtle, applied in animal husbandry and other directions, can solve problems such as heavy workload and mass slaughter of animals, and achieve the effect of strong operability

Inactive Publication Date: 2017-04-26
SHENZHEN POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The purpose of the present invention is to solve the problems of the traditional gonad tissue section or gonad appearance observation method, which require a large number of animals to be slaughtered, and the workload is huge, to provide an early stage ( 2 weeks after hatching) gender identification, a simple, efficient, operable, quantitative index, and high accuracy early sex identification method for soft-shelled turtles

Method used

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  • Early-period gender judging method for soft-shell turtles
  • Early-period gender judging method for soft-shell turtles
  • Early-period gender judging method for soft-shell turtles

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Experimental program
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Effect test

Embodiment 1

[0031] According to the above description, 242 soft-shelled soft-shelled soft-shelled turtles were collected for 2 weeks. The relationship between the carapace width (Y) and carapace length of female soft-shelled soft-shelled turtles can be expressed as: y=1.0423+0.6525x(n= 122, r=0.7532, F=157.3989 (P<0.01), and the relationship between the male and juvenile soft-shelled turtles is: y=1.0965+0.6401x (n=120, r=0.7067, F=117.6961 (P<0.01 ).

[0032] According to the above method, the accuracy rate of identifying the sex of juvenile soft-shelled soft-shelled soft-shelled turtle is higher than 99%.

Embodiment 2

[0034] The external parameters of 242 soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled turtles were collected for 2 weeks as described above. Analysis of variance showed that there was a significant difference in the ratio of carapace width / front carapace width between male and female soft-shelled soft-shelled turtles (P<0.01). The juvenile ratio of soft-shelled soft-shelled turtle was 1.34, and that of male was 1.24. The sex of juvenile soft-shelled turtles can be identified by the ratio of juvenile carapace width / front carapace width, and the accuracy rate is higher than 99%.

Embodiment 3

[0036] The external parameters of 242 soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shelled soft-shell". cm, the average tail length of male soft-shelled turtles is 0.91cm. The sex of juvenile soft-shelled turtles c...

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Abstract

An early-period gender judging method for soft-shell turtles relates to the field of gender differentiation and gender regulation of temperature-determining animals. The method comprises the following steps of weighing the soft-shell turtle which was hatched two weeks ago, soaking the soft-shell turtle in alcohol, acquiring and measuring external shape parameters, observing sexual glands of female and male turtles, determining gender of the soft-shell turtle through tissue slice observation, acquiring soft-shell turtle external characteristic parameters which are significantly related with the gender through statistical analysis, obtaining a regression equation and judging the gender of the newly born soft-shell turtle through the regression equation. Quantitative indexes for early-period gender judgment of the soft-shell turtle are presented. Gender judgment can be quickly and accurately performed through external data measurement without animal killing two weeks after hatching of the soft-shell turtle. The early-period gender judging method has advantages of high speed, high accuracy, no requirement for animal killing, and high operability.

Description

technical field [0001] The invention relates to the field of sex differentiation and sex regulation of temperature-determined animals, in particular to a method for early sex identification of soft-shelled turtles. Background technique [0002] Sexual differentiation and regulation of turtles is one of the current international research hotspots. The sex determination of many turtles is determined by the environment. Due to the greenhouse effect, the earth’s temperature rises, which leads to an imbalance in the ratio of males and females in some species, and even their offspring appear unisexual, leading to the extinction of species. Therefore, it is very important to study the sex differentiation of turtles. urgent. Early sex identification of turtles is the basis of the above research work. In addition, early gender identification is also of great significance to turtle production enterprises. [0003] The patents related to the soft-shelled turtle in this field mainly ...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 雷思佳叶世洲
Owner SHENZHEN POLYTECHNIC
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