Lab Animal Semen Collection via Vas Deferens Extraction
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Solution Overview
Problem
Current methods for semen collection and artificial insemination in lab animals, such as rabbits, are inefficient due to high time and resource requirements, low semen collection rates, and contamination issues, leading to suboptimal pregnancy rates and economic losses in mass breeding.
Innovation Solution
A method involving the removal of external blood vessels from the vas deferens and testis of lab animals, followed by semen collection using a saline solution, which maintains optimal temperature conditions to ensure high sperm activity and purity, and an artificial insemination method using the collected semen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the artificial vagina method is used for semen collection, then ejaculation can be induced in some male rabbits, but the semen collection time is very irregular, collection rates are very low, and failure probability is high due to impurities such as urine
Solution Approach 1:
The invention extracts and removes the external blood vessels from the vas deferens before semen collection. This extraction eliminates the source of blood contamination that causes impurities in collected semen, thereby improving collection reliability and reducing failure probability due to contamination
Solution Approach 2:
The invention performs preliminary removal of external blood vessels from the vas deferens before the actual semen collection process. This preliminary action prevents potential contamination issues before they occur, ensuring cleaner semen collection and improving overall process reliability
2Quantity of substance
If the natural mating method is used for artificial insemination, then semen can be collected, but it needs much time and effort and requires numerous male animals
Solution Approach 1:
The invention extracts semen directly from the vas deferens by removing external blood vessels first, bypassing the need for natural mating processes. This direct extraction method dramatically reduces the time required for semen collection and eliminates the need for numerous male animals to be maintained for breeding purposes
Solution Approach 2:
The invention uses the vas deferens as an intermediary structure to access and collect semen directly. By removing external blood vessels from the vas deferens, the method creates a clean pathway for direct semen extraction, eliminating the need for natural mating while maintaining semen quality
3Reliability
If a catheter is inserted directly into the vas deferens and epididymis for semen collection, then semen can be obtained, but the semen and blood are mixed and pure semen cannot be obtained due to complicatedly entangled blood vessels
Solution Approach 1:
The invention extracts and removes the external blood vessels that are entangled with the vas deferens before inserting the catheter. This removal eliminates the source of blood contamination, allowing pure semen to be collected without mixing with blood from the complicatedly entangled blood vessels
Solution Approach 2:
The invention performs preliminary removal of external blood vessels from the vas deferens and epididymis before the semen collection process. This preliminary action simplifies the anatomical structure and eliminates blood contamination risks before catheter insertion, ensuring pure semen collection
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly improves pregnancy rates, productivity, and economic efficiency by reducing the need for multiple male animals and minimizing facility costs, while ensuring high-quality semen collection and efficient insemination processes.
Implementation Method 1
maintains optimal temperature conditions to ensure high sperm activity and purity
Data Source
AI summary
The present invention relates to a method of collecting semen from the epididymis or the testis of a lab animal and an artificial insemination method thereof. The present invention relates to a new applicable method in the animal production field using artificial insemination. Since the present invention solves the problems of the conventional method of artificial insemination of lab animals, it is excellent in terms of the pregnancy rate and productivity; is time-efficient; and is superior in economic and industrial respects by preventing a huge economic loss due to the costs for maintaining the mass breeding of animals.