& et al., Hassan. “EFFECT OF SWIM-UP AND GLASS WOOL TECHNIQUES, WITH ADDING ANTIOXIDANTS TO TRIS EXTENDER ON IMPROVING POST-CRYOPRESERVED TOTAL SPERM CHARACTERISTICS IN STRAW AND FREEZABILITY PERCENTAGE FOR LOW SEMEN QUALITY OF HOLSTEIN BULLS”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES, vol. 52, no. 4, Aug. 2021, pp. 885-9, https://doi.org/10.36103/ijas.v52i4.1396.