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...

background: a bulk of contraceptives on the market is women-oriented today. the aim of this study was to investigate the effect of a medicinal herb, acacia nilotica on various parameters of male fertility using a rat model. methods: male wistar rats (n=40) were randomly divided in to two groups. one group received acacia nilotica, while the other acted as controls. ten animals from each group w...

Artificial insemination using sexing semen is expected to produce calves with the desired sex. One sperm method percoll density gradient centrifugation method. This study aimed determine changes and relationship between motility acrosome reaction after process centrifugation. The material used was of ±5 years old Ongole crossbred bull a bodyweight ±700 kg as many three bulls mass 2+ individual ...

A total of 130 semen samples were examined for motility (by computer-assisted sperm analysis), morphology and acrosomal status. A high positive correlation was found between percentages of normal forms and progressive motility in the whole semen (r = 0.539, P < 0. 0001) as well as in the Percoll fraction (r = 0.702, P < 0.0001). Among the specific abnormalities, acrosome defects were most highl...

Background Although several studies confirmed positive effects of fish oil on semen quality, the antioxidant status in omega-3 supplemented diets of several studies is a fuzzy point. The aim of this study was to investigate the effect of dietary fish oil and (or) vitamin E supplementation on cryopreserved sperm in Mehraban rams. MaterialsAndMethods Sixteen fertile rams were randomly allotted to...

This study of all 4889 infant deaths within the cohort of all 287 993 births in Cumbria, northwest England (1950-93), found no evidence of an increased risk of infant death with greater travel time to hospitals.