This experiment was conducted to study variations of serum testosterone and seminal characteristics of Markhoz male goats. Blood samples were obtained via jugular vein, and semen was collected by using an artificial vagina from 14 fertile male goats (2-3 years of age), at 15-day intervals starting on 15 July and ending on 30 October 2010 (during breeding and non-breeding season). Semen volume, ...

An important target organ for thyroid hormone activity is the testis and hypo or hyperthyroidism causes noticeable alterations in testicular function. This study aimed to investigate therapeutic effect of Coriander Seeds Extract (CSE) against thyroidectomy induced toxicity, oxidative stress, injury, proliferation male testes rats. 40 rats were equally divided into 4 groups [Gp1, control; Gp2, C...

Background: Herbal plants often contain active pharmacological compounds they are commonly used for the treatment and prevention of different diseases. Objectives The present study was aimed to identify the effects of different concentrationsof Erucasativa extraction (ESE) on human sperm motility for infertile male in vitro. Methods: Thirty five semen samples were obtained from men (mean age 27...

Aim: The study was undertaken to quantify and to analyze the changes in the motion characteristics of bull spermatozoa during various stages of cryopreservation cycle. Materials and Methods: Using computer assisted semen analysis (CASA) technique, 26 ejaculates, collected from two Jersey bulls were analyzed for motility, head behaviour and swimming pattern of spermatozoa on dilution, pre-freeze...

Background: The study aimed to evaluate the impact of Calligonum extract and US radiation on sperm parametersof cryopreserved human semen samples.Materials and Methods: In this experimental study, twenty-five semen specimens were obtained from healthy semendonors and incubated in human tubal fluid (HTF) medium supplemented with 10% human serum albumin (HSA) for45 minutes...

Cooling method was proposed to maintain the sperm quality for several days. Nevertheless, during this procedure, sperm is encountered to “cold shock”, and its quality decreases time-dependently. This study was designed to improve the in vitro sperm preservation methods. Thirty normal semen samples were examined in Shiraz, Iran, 2017. Fifteen samples were incubated at 22-27 °C and 15 samples wer...

Cryopreservation is associated with the production of reactive oxygen species, which leads to lipid peroxidation of the sperm membrane and consequently a reduction in sperm motility and decreased fertility potential. The aim of this study was to determine the optimal concentration of L-cysteine needed for cryopreservation of boar semen. Twelve boars provided semen of proven motility and morphol...

BACKGROUND We seek to determine whether dietary and supplement intake of specific micronutrients (zinc and folate) and antioxidants (vitamins C, E and beta-carotene) is associated with semen quality. METHODS Ninety-seven healthy, non-smoking men provided semen and were interviewed. Average daily nutrient intake from food and supplements was derived from a self-administered food frequency ques...

AIM To study whether additional measurements of motility characteristics of spermatozoa by computer assisted semen analysis (CASA) were more sensitive indicators of reduced semen quality than estimates of percentages of motile, rapid or progressive cells. METHODS Intermittent scrotal insulation was applied to 6 rams for 16 h per day for 21 days or to 2 of these for 12 h per day for 28 days in...

Received: 21 January, 2014 Accepted: 30 March, 2014 Published: 20 April, 2014 A study was conducted to investigate the effect Gonadotropins supplied to culture medium on human sperm parameters and sperm DNA structure during in vitro sperm activation. Thirty infertile patients were included. Semen sample was divided into 3 aliquots. One mL of SMART medium either alone (control group) or supplied...