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A long-term extender extends the lifetime of boar semen by acting as an energy source for sperm metabolism, facilitating pH buffering for sperm cell waste, and providing ions for membrane and cell balance. However, its limited ability to function as a storage medium without reducing the fertilizing capacity of semen is a concern which affects the survival of sperm during cooled storage. Therefore, A team of Thai researchers focused on finding an effective method to prolong the semen cold storage time and to increase sperm fertility potential.