STUDYING ON FREEZING POINT OF EJACULATES , VARIATION, THE EFFECT OF BULLS AGE AND ‎RELATIONSHIP BETWEEN IT AND SOME CHARACTERISTICS OF SEMEN AND FREREZABILITY. Iraqi J. Vet. Med. [Internet]. 1988 Dec. 31 [cited 2025 Jun. 13];12(1):195-206. Available from: https://www.jcovm.uobaghdad.edu.iq/index.php/Iraqijvm/article/view/1773