Sperm macromolecules associated with bull fertility

Area of Science:

• Reproductive biology
• Animal science
• Genomics

Background:

• Bull fertility is crucial for efficient cattle production but is a complex trait with low heritability.
• Current methods for evaluating semen quality and predicting bull fertility are unreliable.
• Advances in genomic selection offer potential benefits but lack precise fertility prediction tools.

Purpose of the Study:

• To review sperm macromolecules (transcripts, proteins) and epigenome markers associated with bull fertility.
• To highlight the importance of this research for both fundamental mammalian gamete science and livestock biotechnology.
• To explore the potential of these markers for improving semen quality assessment.

Main Methods:

• Literature review focusing on sperm macromolecules and epigenome associated with bull fertility.
• Analysis of existing research on molecular and epigenetic factors influencing male fertility in cattle.
• Exploration of the integration of these markers with current genomic selection tools.

Main Results:

• Sperm transcripts, proteins, and epigenome markers are linked to bull fertility.
• These molecular and epigenetic factors offer potential for more accurate fertility prediction.
• Combining these markers with SNP microarrays can enhance semen quality evaluation.

Conclusions:

• Sperm macromolecules and epigenome markers represent promising targets for improving bull fertility assessment.
• These findings can advance the fundamental understanding of mammalian sperm function.
• Biotechnology applications in livestock production can be enhanced through these novel fertility markers.