Glucose and maltose supplementation in the freezing medium of Creole rooster spermatozoa improves in vivo fertility
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View abstract on PubMed
Summary
This summary is machine-generated.Supplementing rooster semen freezing medium with glucose-maltose improved sperm viability and fertility. This finding supports its use in poultry genetic conservation and breeding programs.
Area Of Science
- Animal Reproduction
- Cryobiology
- Avian Genetics
Background
- Cryopreservation of avian spermatozoa is crucial for genetic conservation and breeding programs.
- Optimizing freezing extenders is essential to maintain sperm quality post-thaw.
- Creole rooster semen requires specific cryoprotective formulations for successful preservation.
Purpose Of The Study
- To evaluate the impact of glucose-maltose supplementation in freezing medium on Creole rooster spermatozoa.
- To assess the effects on sperm kinematic parameters, viability, and fertility after cryopreservation.
- To determine the optimal glucose-maltose ratio for preserving rooster sperm quality.
Main Methods
- Spermatozoa from Creole roosters were cryopreserved using Lake-Ravie extender with varying glucose-maltose concentrations (GM1, GM2) or a non-supplemented control.
- Kinematic parameters (motility, beat-cross frequency) and viability were assessed post-thaw.
- Fertility trials were conducted using artificial insemination with frozen-thawed semen.
Main Results
- The non-supplemented control group exhibited higher motility and beat-cross frequency compared to GM1 and GM2 groups post-thaw.
- Sperm viability was significantly greater in the GM1 and control groups than in the GM2 group.
- Crucially, fertility rates were significantly higher in the GM1 (glucose-maltose supplemented) group compared to the non-supplemented control group.
Conclusions
- Glucose-maltose supplementation in the freezing medium can enhance the viability and fertility of frozen-thawed Creole rooster semen.
- The GM1 formulation (0.64% glucose + 0.33% maltose) shows promise for improving cryopreservation outcomes.
- This supplementation strategy supports the application of cryopreserved semen in avian genetic resource management and breeding initiatives.
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