Genomic studies in animal breeding have provided a wide
range of
references; however, it is important to note that genes and mRNA alone
do not fully capture the complexity of living organisms. Protein post-translational
modification, which involves covalent modifications regulated by genetic
and environmental factors, serves as a fundamental epigenetic mechanism
that modulates protein structure, activity, and function. In this
review, we comprehensively summarize various phosphorylation and acylation
modifications on metabolic enzymes relevant to energy metabolism in
animals, including acetylation, succinylation, crotonylation, β-hydroxybutylation,
acetoacetylation, and lactylation. It is worth noting that research
on animal energy metabolism and modification regulation lags behind
the demands for growth and development in animal breeding compared
to human studies. Therefore, this review provides a novel research
perspective by exploring unreported types of modifications in livestock
based on relevant findings from human or animal models.