BACKGROUND Exposures to endocrine-disrupting chemicals during critical phases of testicular development may be related to poorer semen parameters. However, few studies have assessed the association between childhood organochlorine (OC) exposure and adult semen parameters. OBJECTIVE We examined whether peripubertal serum OC concentrations are associated with semen parameters among young Russia...

Infertility among couples in Nigeria is causing increasing concern. Investigations have shown a relationship between abnormalities in spermatozoa/semen parameters and the incidence of male factor mediated fertility problems in couples. However, the factors responsible for the sudden increase in semen/spermatozoa abnormalities are not fully understood. In this study, blood and semen samples were...

White rhinoceroses suffer from a low rate of reproduction in captivity. This study examines the role of male reproductive function as a contributing factor. We used ultrasonography to image accessory sex glands, testis and epididymis. Electroejaculation provided 36 ejaculates from 21 rhinoceroses. Based on the percentage of progressively motile spermatozoa, semen was categorized in three groups...

PURPOSE We aimed to compare the associations between semen quality, associated reproductive indicators and the main prostate-related parameters in middle-aged men. MATERIALS AND METHODS This is a prospective study on 422 middle-aged men who underwent the screening for prostate health. Their reproductive function, semen quality and prostate-related pathologies were investigated. RESULTS Sign...

Context Broader applications of milk mid-infrared spectral data could add value to milk-recording data. One such application is rank cows on the probability conception first service (MFERT) which help prioritise for insemination with dairy sexed semen (SS).Aims This study compared use MFERT estimates against two other approaches, (1) identify most and least fertile (2) predicted be SS.Methods M...

The appropriate management for male partners of couples with recurrent pregnancy loss (RPL) or recurrent implantation failure during in vitro fertilization (IVF) remains unclear. In particular, men with normal semen parameters are often ignored because the “bulk semen parameters” appear normal [1]. Despite normal semen parameters, male partners in couples with RPL or recurrent implantation fail...

The purpose of this study was to evaluate the probable effects of leptin addition in different levels to the semen extender on sperm quality (motility and motility parameters, viability, sperm membrane integrity, and DNA damage). Semen specimens were evaluated immediately after leptin addition, equilibration time and after thawing the frozen semen. Five healthy buffalo bulls (5 ejaculates from ...

OBJECTIVES To determine the relationship between semen quality and exposure to pesticide residues. METHODS A cross-sectional study was conducted among male farmers from 3 different communities in Sabah, Malaysia. A total of 152 farmers participated in this study of whom 62 farmers had been exposed to either paraquat or malathion or both to varying extents. Questionnaires were designed to reco...

Aim: To investigate the prevalence of high levels of sperm DNA damage among men from infertile couples with both normal and abnormal standard semen parameters. Methods: A total of 350 men from infertile couples were assessed. Standard semen analysis and sperm chromatin structure assay (SCSA) were carried out. Results: Ninety-seven men (28% of the whole study group) had a DNA fragmentation index...

background: chromomycin a3 (cma3) staining has been used to assess protamine deficiency. the aim of this study was to determine credibility of cma3 along with semen parameters for assessment of fertility potential. materials and methods: semen analysis and cma3 staining were carried out on 234 fertile and 178 subfertile individuals. semen analysis was assessed according to who criteria. protami...