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Related Experiment Video

Updated: Mar 18, 2026

Cryopreservation of Preimplantation Embryos of Cattle, Sheep, and Goats

Cryopreservation of Preimplantation Embryos of Cattle, Sheep, and Goats

Published on: August 5, 2011

Effect of Cryopreservation on Semen Sample.

S K Rath¹, P Tarneja², Man Singh³

¹Classified Specialist (Obstetrics and Gynaecology), 151 Base Hospital, C/o 99 APO.

Medical Journal, Armed Forces India

|July 14, 2016

Summary

Semen cryopreservation can reduce fertilizing potential, but sample quality post-thaw correlates with pre-freeze condition. Five pregnancies resulted, showing preserved fertility in some thawed samples.

Keywords:

Cryopreservation Semen

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Last Updated: Mar 18, 2026

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A High-Throughput Method For Zebrafish Sperm Cryopreservation and In Vitro Fertilization

A High-Throughput Method For Zebrafish Sperm Cryopreservation and In Vitro Fertilization

Published on: July 6, 2009

Area of Science:

Reproductive biology
Cryobiology
Andrology

Background:

Semen preservation is crucial for assisted reproductive technologies.
Cryopreservation can negatively impact sperm viability and function.
Understanding factors influencing post-thaw semen quality is essential.

Purpose of the Study:

To evaluate the impact of cryopreservation on semen quality.
To determine the relationship between pre-freeze semen parameters and post-thaw viability.
To assess the fertilizing potential of cryopreserved semen samples.

Main Methods:

Sixty semen samples were cryopreserved in three groups.
Samples were thawed after three months for analysis.
Pregnancy rates were monitored following insemination with thawed samples.

Main Results:

Post-thaw semen yield ranged from 66% to 72%.
A linear correlation was observed between pre-freeze semen quality and post-thaw yield.
Five pregnancies were achieved, confirming the utility of preserved samples.
Subnormal semen samples did not withstand the freezing process effectively.

Conclusions:

Semen cryopreservation success is dependent on initial sample quality.
Careful selection of samples is necessary for successful long-term semen preservation.
Cryopreserved semen retains fertilizing capacity, particularly for samples with good pre-freeze parameters.