& et al., H. 2021. 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. 52, 4 (Aug. 2021), 885–895. DOI:https://doi.org/10.36103/ijas.v52i4.1396.