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Multi-layer spiral CT identification method for sturgeon gonad

A sturgeon and gonad technology, applied in the field of sturgeon sex identification and developmental staging judgment, can solve the problems of lack of early gonad identification method and limit the effective management of backup broodstock, and achieve the effect of simple operation method and broad application prospect

Inactive Publication Date: 2016-07-20
WATER ENG ECOLOGICAL INST CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lack of early gonad discrimination limits effective management of backup broodstock for conservation and commercial rearing of sturgeon

Method used

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  • Multi-layer spiral CT identification method for sturgeon gonad

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] 1. Anesthetize the sterlet with 500mg / L MS222 solution.

[0015] 2. Use Philips (Philips IngenuityCore128CT) 64-row 128-slice spiral CT to scan the trunk. The scanning conditions were 120kV, 30-82mA, the scanning slice thickness was 0.625mm, the reconstruction interval was 0.5mm, the bed advancing speed was 106.43mm / s, the spiral speed per revolution was 0.5s, and the pitch was 1.330:1. The torso is laid flat with the abdomen in contact with the scanning table. Place the anesthetized sturgeon on a horizontal CT scanning bed, the head enters first, and scan along the body axis parallel to the YZ plane. The scanning position is from the head to the tail. , The image of the XZ surface, the formed image is called XY type, XZ type and YZ type respectively.

[0016] 3. After the scan is completed, transport the experimental fish back to the pool for recovery after anesthesia. The fish artificial respiration method can be used to gently pinch the gill cover repeatedly. The ...

Embodiment 2

[0019] 1. Anesthetize Siberian sturgeon with 530mg / L MS222 solution.

[0020] 2. Use Philips (Philips IngenuityCore128CT) 64-row 128-slice spiral CT to scan the trunk. The scanning conditions were 120kV, 30-82mA, the scanning slice thickness was 0.625mm, the reconstruction interval was 0.5mm, the bed advancing speed was 106.43mm / s, the spiral speed per revolution was 0.5s, and the pitch was 1.330:1. The torso is laid flat with the abdomen in contact with the scanning table. Place the anesthetized sturgeon on a horizontal CT scanning bed, the head enters first, and scan along the body axis parallel to the YZ plane. The scanning position is from the head to the tail. , The image of the XZ surface, the formed image is called XY type, XZ type and YZ type respectively.

[0021] 3. After the scan is completed, transport the experimental fish back to the pool for recovery after anesthesia. The fish artificial respiration method can be used to gently pinch the gill cover repeatedly....

Embodiment 3

[0024] 1. Anesthetize Chinese sturgeon with 600mg / L MS222 solution.

[0025] 2. Use Philips (Philips IngenuityCore128CT) 64-row 128-slice spiral CT to scan the trunk. The scanning conditions were 120kV, 30-82mA, the scanning slice thickness was 0.625mm, the reconstruction interval was 0.5mm, the bed advancing speed was 106.43mm / s, the spiral speed per revolution was 0.5s, and the pitch was 1.330:1. The torso is laid flat with the abdomen in contact with the scanning table. Place the anesthetized sturgeon on a horizontal CT scanning bed, the head enters first, and scan along the body axis parallel to the YZ plane. The scanning position is from the head to the tail. , The image of the XZ surface, the formed image is called XY type, XZ type and YZ type respectively.

[0026] 3. After the scan is completed, transport the experimental fish back to the pool for recovery after anesthesia. The fish artificial respiration method can be used to gently pinch the gill cover repeatedly. ...

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Abstract

The invention provides a multi-layer spiral CT identification method for the sturgeon gonad.The method includes the following steps that a sturgeon to be identified is anesthetized; then the anesthetized sturgeon is placed to a horizontal CT scanning bed, the head enters the scanning bed for the first place, multi-layer scanning parallel to the XY face, the XZ face and the YZ face is conducted along the body axis, the scanning position starts from the head to the tail, and formed images are named as the XY type image, the XZ type image and the YZ type image respectively; then the sturgeon is carried back to a water pool for recovery from sturgeon; finally the CT images are observed, gonad thickness and the fat accumulation degree are observed, and the growth phrase is judged.The multi-layer spiral CT identification method is simple in operation and high in accuracy, the sturgeon only needs to the anesthetized, situations of trauma and death are avoided, and application prospect on the aspect of sturgeon gonad examination is wide.

Description

technical field [0001] The invention belongs to the field of aquatic sciences, and in particular relates to a method for judging the gender and development stages of sturgeons. Background technique [0002] Overfishing and habitat destruction have led to a sharp decline in the number of sturgeons, some of which are critically endangered. The number of artificial breeding and release has dropped sharply due to the reduction of wild broodstock for breeding. This phenomenon has accelerated the development of backup broodstock. Due to the lack of external sexual characteristics and late sexual maturity of sturgeon, the management of backup broodstock urgently needs to be guided by environmental requirements and practical inspection criteria. For the conservation and commercial rearing of sturgeon, the lack of early gonad discrimination limits the effective management of backup broodstock. Under the multi-slice spiral CT image, each adipose tissue and reproductive tissue have di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81A01K61/00
Inventor 常剑波李伟廖小林管波
Owner WATER ENG ECOLOGICAL INST CHINESE ACAD OF SCI
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