Effect of freezing rate on acrosome and chromatin integrity in ram semen
نویسندگان
چکیده
منابع مشابه
: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes
هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...
Investigation of Different Glycerol and Egg Yolk Concentration on Freezing Bakhtiari Ram Semen
Purpose: Glycerol has been the most widely used cryopreservation agent for spermatozoa and a wide range of factors affects its action on sperm viability and fertilizing capacity. Moreover egg yolk is a common constituent of semen diluents, protects the spermatozoa against cold shock and confers protection during freezing and thawing .The aim of this study was to investigate of different glycero...
متن کاملP-11: Varicocele Improved Semen Quality and Chromatin Integrity in Normozoospermic and Non-Normozoospermic Varicocele Individual
Background: Varicocele is related with poor semen quality and sperm chromatin integrity which possibility decreases the spontaneous pregnancy potential. Some of the varicocele individuals have normal semen parameters with failed pregnancy. It is also one of the most controversial issues in the field ofinfertility, especially regarding why, when and for whom varicocelectomy should be implemented...
متن کاملEffect of freezing rate of ram spermatozoa on subsequent fertility in vivo and in vitro.
Ram spermatozoa are most susceptible to damage during freezing between the temperatures of -10 degrees C and -25 degrees C. The objectives of the present study were to examine how freezing rate through this critical temperature zone affected the fertility of spermatozoa as assessed in vivo and in vitro. Semen from six adult rams was frozen at two different rates ("fast": 5 degrees C/min from +5...
متن کاملThe effect of platelet activating factor on the motility and acrosome reaction of ram spermatozoa
Platelet activating factor (PAF) is a novel signaling phospholipids that in addition to platelet activation has many biological properties. The acrosome reaction, as an essential step in mammalian fertilization, can occur in response to several agents such as PAF. Therefore, the present study aimed to assess the effect of PAF on the motility and acrosome reaction of ram spermatozoa. Semen was c...
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ژورنال
عنوان ژورنال: Ankara Üniversitesi Veteriner Fakültesi Dergisi
سال: 2011
ISSN: 1300-0861
DOI: 10.1501/vetfak_0000002486