In assisted reproduction, sperm quality plays a vital role in determining the outcome of treatments. Achieving higher fertilization rates and producing more viable embryos requires a precise approach to sperm selection. The Swim Up Protocol is a proven method that allows you to select the best sperm, ensuring optimal results in each IVF cycle.
What Makes the Swim Up Protocol Essential?
The Swim Up Protocol is a highly effective method for isolating high-quality sperm. This technique relies on the natural ability of sperm to actively “swim” upwards. By creating an environment where only the healthiest, most mobile, and morphologically sound sperm can rise, the process eliminates debris, immotile cells, and damaged sperm.
With this approach, your lab gains access to a concentrated sample of top-performing sperm. The result? Improved fertilization outcomes and healthier embryos, making it an indispensable protocol for assisted reproduction procedures.
Step-by-Step: How to Execute the Swim Up Protocol
Before diving into the step-by-step process, watch this quick tutorial video that walks you through the entire Swim Up Protocol. Seeing the process in action makes it easier to understand and implement each step correctly.
1. Sample Preparation
If using cryopreserved sperm, thaw the sample under controlled conditions at 38.5°C for 30 seconds. Proper handling at this stage is crucial to preserve sperm viability.
2. Medium Warming
Prepare 1 ml of our Swim Up medium and warm it to 38.5°C. This medium is specifically formulated to support sperm motility and selection.
3. Two-Phase Creation
Carefully transfer the semen sample into the bottom of the tube containing the medium. Avoid creating bubbles or turbulence. This step establishes two distinct layers: semen at the bottom and medium on top.
4. Incubation
Place the tube at a 45-degree angle and incubate it for 1 hour at 38.5°C. During this time, the most active sperm will swim upwards into the medium.
5. Collection of the Supernatant
After incubation, gently extract approximately 750 µl of the supernatant. This layer contains the most mobile, high-quality sperm.
6. Sperm Concentration
– Transfer the supernatant to a clean tube and centrifuge it at 300 rcf for 7 minutes.
– Discard 650 µl of the liquid, leaving 100 µl of the pellet. This pellet contains the selected sperm.
7. Final Adjustments
– Homogenize the pellet gently and take 10 µl to mix with 990 µl of formol saline. This mixture allows for accurate sperm counting using a Neubauer chamber.
– Adjust the final concentration to 1×10⁶ sperm/ml to prepare for insemination.
8. Insemination
Use the prepared sample to inseminate each well, ensuring a consistent final concentration. The standard target is 500,000 sperm per well.
Take Your Knowledge to the Next Level and Optimize Your Results!
When combined with our dry format media, you can enjoy even greater efficiency:
– Cut shipping costs by up to 60%.
– Minimize contamination risks.
– Extend product shelf life to 2 years.
Our dry format media is designed to simplify logistics while maintaining exceptional performance.
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