Amin Golpour

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To investigate the role of sex steroids of the seminal fluid on sperm quality, the relationships between sex steroids and milt quality parameters (sperm motility and sperm production) were investigated in the Persian sturgeon. The seminal fluid levels of 17α,20β,21-trihydroxy-4-pregnen-3-one (20βs), and 11-ketotestosterone (11-KT) had positive relationships(More)
Calcium plays a variety of vital regulatory functions in many physiological and biochemical events in the cell. The aim of this study was to describe the ultrastructural distribution of calcium during different developmental stages of spermatogenesis in a model organism, the zebrafish (Danio rerio), using a combined oxalate-pyroantimonate technique. Samples(More)
The conservation of sturgeons is of critical importance, and optimization of long-term storage is crucial to cell survival. This study aimed to examine the viability rates of several variations of sturgeon testicular cells storage at -80 °C for purpose of a short-term storage in a deep freezer or shipment on dried ice. Testes extracted from three immature(More)
242 Comparison the effect of medicinal plants on growth performance of broiler chickens. The aim of this study was to examine the effects of 4 herbal products on growth performance of broiler chickens. A total of 150 d – old female broilers (Arbor Acres) were randomly divided into 5 treatments, 3 replicates with 10 birds in each. Treatments included:(More)
The aim of this study was to investigate effects of two dietary medicinal herbs, Rose hip (Rosa canina) and Safflower (Carthamus tinctorius) supplementation on growth performance, haematological, biochemical parameters and innate immune response of in juvenile beluga, Huso huso. Fish (26.3 ± 0.4 g) were allocated into 15 tanks (20 fish per tank) and(More)
The effect of temperature on Cyprinus carpio spermatozoa in vitro was investigated with spermatozoa activated at 4, 14, and 24°C. At 30s post-activation, motility rate was significantly higher at 4°C compared to 14 and 24°C, whereas highest swimming velocity was observed at 14°C. The thiobarbituric acid-reactive substance (TBARS) content was significantly(More)
Amino acids have an important biological role for the prevention of cell damage during cryopreservation. The aim of this study was to investigate the effects of glutamine on post-thaw sperm motility and fertilization success in the Persian sturgeon (Acipenser persicus). Sperm collected from six fish was cryopreserved in extenders containing different(More)
Calcium regulates many intracellular events such as growth and differentiation during different stages of gamete development. The aim of this study was to localize and quantify the intracellular distribution of calcium during different developmental stages of spermatogenesis in sterlet, Acipenser ruthenus, using a combined oxalate-pyroantimonate technique.(More)
Calcium plays prominent roles in regulating a broad range of physiological events in reproduction. The aim of this study was to describe the subcellular distribution of calcium deposits during stages of oogenesis in zebrafish using a combined oxalate-pyroantimonate technique. The oocyte development of zebrafish was categorized into four stages: primary(More)
465 Kinetics of anti-cryptosporidia antibody response, oocyst shedding and bursa/body weight ratios in SPF white leghorn chickens infected with Cryptosporidium baileyi oocysts at different ages. 466 An essential role of avian interleukin (IL)-22 as immune mediator during inflammatory response. A major obstacle to advances in veterinary immunology and(More)