Up to 12 days. The functional Modulator action shows its maximum potential in an extra-long-term storage. Its biotechnology improves the performances of the semen, since an innovative system allows a control release of the available energy source. Buffer capability to guarantee optimum pH and osmolality in longer periods. Antibacterial optimization activity. Improves the activity and fertility of the preserved sperm. 18 months guaranteed stability stored at +5°C/30°C.