The role of glucose in porcine diluent

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  • ブタ希釈液におけるグルコースの役割

Abstract

<p>Artificial insemination in pigs is a crucial technique supporting efficient pig production, with implementation rates exceeding 80% in worldwide. In this process, collected semen is diluted and preserved using a diluent, and subsequently injected into sows. The diluent not only serves to protect sperm function but is also believed to assist in enhancing sperm migration within the female reproductive tract. Notably, pig diluents feature a distinctive characteristic of containing a high concentration of the nutrient substrate glucose. In light of this, we undertook a metabolic and motility analysis of pig sperm using diluents with varying glucose concentrations, aiming to unravel the role of glucose in the diluent. Our investigations revealed that within a diluent containing 30.6 mM glucose, glucose is utilized not only for energy production through glycolysis but also plays a role in suppressing reactive oxygen species (ROS) through the pentose phosphate pathway, thus supporting mitochondrial function. In this manuscript, we focus on the diluent crucial to porcine artificial insemination and the high glucose concentration therein. We summarize insights into semen extenders and the role of glucose in porcine sperm, while also presenting our emerging understanding of the role of glucose in the diluent we have been exploring.</p>

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