Volume 15 (2024)
Volume 14 (2023)
Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
Evaluation of dietary betaine on post-thawed semen quality in mature bulls ‎during summer heat stress

Reza Ijab; Esmail Ayen; Amir Khaki; Ali Soleimanzadeh

Volume 13, Issue 1 , March 2022, , Pages 61-70

  Heat stress (HS) has caused relative hypoxia, oxidative stress and high level of homocysteine, which contributes significantly to fertility failures in bulls. The aim of present study was to evaluate the role of dietary betaine (BET) in improving dual purpose Simmental (Fleckvieh) post-thawed semen quality ...  Read More

Differences between first and second ejaculations regarding seminal plasma calcium, magnesium and total antioxidant capacity in dual-purpose Fleckvieh bulls and their relationships with semen quality

Amir Khaki; Atefeh Araghia; Mehdi Lotfi; Alireza Nourian

Volume 10, Issue 4 , December 2019, , Pages 333-341

  Artificial insemination is a well-established and widely used method for genetic improvement in cattle breeding industry. Recently, researchers have shown an increased interest in the cryoprotective effects of minerals and antioxidants on semen. Previous studies on calcium (Ca) and magnesium (Mg), two ...  Read More

Reproductive characteristics and thyroidal function in relation with season in Khuzestan buffalo (Bubalus bubalis) bulls

Sadegh Mayahi; Morteza Mamouei; Saleh Tabatabaei; Khalil Mirzadeh

Volume 5, Issue 3 , July 2014, , Pages 201-205

  High ambient temperature is the major constraint on Buffalo productivity. The aim of this study was to evaluate the reproductive performance and thyroid gland function in winter and summer seasons in Khuzestan buffalo bulls. Six male indigenous buffaloes of Khuzestan with nearly the same age (2-3 years ...  Read More

Effect of various levels of catalase antioxidant in semen extenders on lipid peroxidation and semen quality after the freeze-thawing bull semen

Reza Asadpour; Razi Jafari; Hossein Tayefi-Nasrabadi

Volume 2, Issue 4 , December 2011, , Pages 218-221

  The objective of this study was to evaluate effect of different concentrations of catalase in two extenders on motility, viability and lipid peroxidation bull spermatozoa during semen freezing process. Thirty ejaculates collected from ten Holstein bulls were pooled and evaluated at 37 °C. Pool ejaculated ...  Read More