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Methionine supplementation improves ram sperm parameters during liquid storage at 5°C
Mustafa Numan Bucak1, Kenan Coyan, Caner Oztürk
1Department of Reproduction and Artificial Insemination, Veterinary Faculty, Selçuk University, Konya, Turkey. mustafanbucak@yahoo.com
Cryobiology
|September 27, 2012
Summary
Methionine supplementation significantly improved ram sperm motility, viability, and mitochondrial activity during liquid storage. This study highlights methionine
Area of Science:
- Animal Science
- Reproductive Biology
- Biochemistry
Background:
- Sperm preservation is crucial for artificial insemination programs.
- Optimizing extender additives can enhance sperm quality during storage.
Purpose of the Study:
- To evaluate the impact of methionine and lipoic acid on ram sperm parameters.
- To determine the optimal concentrations of these additives for liquid storage.
Main Methods:
- Ram ejaculates were collected and diluted in extenders with varying doses of methionine or lipoic acid.
- Sperm motility, viability, and mitochondrial activity were assessed at multiple time points during 5 °C storage.
- Control groups received extender without additives.
Main Results:
- Methionine (2 and 4mM) significantly increased sperm motility up to 96 hours.
- Methionine supplementation also enhanced sperm viability and mitochondrial activity compared to controls.
- Lipoic acid did not show significant benefits in the tested parameters.
Conclusions:
- Methionine is a beneficial additive for preserving ram sperm quality during liquid storage.
- Optimal methionine concentrations enhance motility, viability, and mitochondrial function.
- Further research may explore synergistic effects with other compounds.
