this study was carried out to investigate effects of copper sulphate (cuso4) additive to semen extenders on sperm parameters: progressive motility, viability, membrane integrity and dna damage, after semen dilution and cryopreservation. semen samples of 5 buffalo bulls of 3-5 years old were collected at 5 different occasions during the autumn 2011. a total number of 25 samples were used in each...

This experiment was designed to study the effect of insulin like growth factor-I (IGF-I) on cryopreservation of Hariana bull semen. For this purpose, semen ejaculates were collected from four Hariana bulls using artificial vagina at biweekly interval. The semen samples which possess more than 70% initial progressive motility and above 500 million/mL spermatozoa concentration was subsequently su...

BACKGROUND Intrauterine insemination (IUI) is widely used to treat infertility, and its adequate indication is important to obtain good pregnancy rates. To assess which couples could benefit from IUI, this study aimed to evaluate whether sperm motility using a discontinuous gradient of different densities and incubation in CO2 in normospermic individuals is able to predict pregnancy. METHODS ...

The aim of this study was to assess the effect of cooling on sperm motility before and after frozenthawed stallion semen. Fifteen ejaculates of three stallions were collected with artificial vagina. The progressive motility was determined under microscope immediately after collection, cooling (5°C for 0, 2, 7 or 24 h) before frozen-thawed and cooling (5°C for 0, 2, 7 or 24 h) after the semen wa...

Semen quality is a key indicator of the male reproductive ability. The decline in semen quality has been debated for several decades. However, data on decline in semen quality might be inconsistent given factors such as geographical area, ethnicity, environmental exposure and lifestyle changes. This study aimed to provide information on the semen quality of men in Northern Taiwanese. We recruit...

Objective The quality of semen depends upon several factors such as environment, life style, physical activity, age and occupation. The aim of this study was to analyze and compare the conventional and functional semen parameters in men who practice vigorous physical activity to those of sedentary men. MaterialsAndMethods Semen samples from 17 physically active men and 15 sedentary men were col...

Materials and methods: Th e study included 80 infertile couples who were treated by ICSI due to severe oligoasthenozoospermia (<106). Results were obtained by retrospective analysis of data that are regularly entered into SPSS in our In Vitro Fertilization Unit. Female patients older than 35 years were excluded. Th e patients were divided into 2 groups according to prewash progressive sperm mot...

Background: Cigarette smoking is associated with impairment of testicular function. Nicotine is a major component of cigarette smoke.In the present study we aimed to study the effect of administration of nicotine-melatonin on sperm parameters in adult mouse. Materials and Methods: Male NMRI mice were divided into 4 groups: 1) control(normal saline) group 2) nicotine treated group 3) melatonin t...

this study was conducted to evaluate the effect of egg yolk and cooling on ram coated spermatozoa. semen was collected from three ram by artificial vagina contacted with a tube containing tris- fructose-egg yolk 15%. samples were pooled, centrifuged by 700 g for 10 min and removed supernatant. then, samples were diluted by tris-glucose and centrifuged again to remove seminal plasma and egg yolk...