Table of Contents Vol. 2, No. 4, December 2011
Instructions for Authors	214
ORIGINAL ARTICLES
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 and Hossein Tayefi-Nasrabadi	218
The effects of electromagnetic fields on plasma levels of corticosterone, free-T3, free-T4 malonyldialdehyde in white male rabbit with normal diet and hyperchlostrol diet Ehsan Hosseini, Saeed Nafisi and Samad Zare	222
Role of the thalamic parafascicular nucleus cholinergic system in the modulation of acute corneal nociception in rats Esmaeal Tamaddonfard, Amir-Abbas Farshid, Sona Seiednejhad and Asghar Morvaridi	226
Histopathologic and biochemical assessment of mice ovarian tissue, following experimentally induced copper poisoning Ehsanollah Sakhaee, Homayoon Babaei, Jalil Abshenas, Omid Azari, Reza Kheirandish and Farideh Ebrahimi-Meymand	232
Gastrointestinal parasitic infection of slaughtered sheep (Zel breed) in Fereidoonkenar city, Iran Soraya Naem and Tahmineh Gorgani	238
The effects of green tea (Camellia sinensis) extract on mouse semen quality after scrotal heat stress Jalil Abshenas, Homayoon Babaei, Mohammad-Hossein Zare, Asie Allahbakhshi and Fariba Sharififar	242
Adipose derived stromal vascular fraction improves early tendon healing: an experimental study in rabbits Mehdi Behfar, Farshid Sarrafzadeh-Rezaei, Rahim Hobbenaghi, Nowruz Delirezh and Bahram Dalir-Naghadeh	248
Characterisation and pattern of culling in Holstein-Friesian dairy herds in Khorasan Razavi Province, North East of Iran Mohammad Azizzadeh	254
The effect of citric acid and citrate on protoplasmic droplet of bovine epididymal sperms Keivan Abdy and Parviz Tajik	260
Chemoprotective effect of Crataegus monogyna aqueous extract against cyclophosphamide-induced reproductive toxicity Ali Shalizar Jalali, Shapour Hassanzadeh and Hassan Malekinejad	266
Prevalence of Coenurus cerebralis in sheep in Northwest of Iran Mosa Tavassoli, Farnaz Malekifard, Ali Soleimanzadeh and Hossein Tajik	274
SHORT COMMUNICATION
Gastrointestinal parasites infection in one-humped camels (Camelus dromedarius) of Nigeria Pwaveno Huladeino Bamaiyi and Arunsi Ukairu Kalu	278