BACKGROUND The relation between persistent environmental chemicals and semen quality is evolving, although limited data exist for men recruited from general populations. OBJECTIVES We examined the relation between perfluorinated chemicals (PFCs) and semen quality among 501 male partners of couples planning pregnancy. METHODS Using population-based sampling strategies, we recruited 501 coupl...

AIM To study the effect of preputial washing on bacterial load, preservability and semen quality in Murrah buffalo bulls. MATERIALS AND METHODS A total of 36 collections of three Murrah buffalo bulls maintained at Artificial Breeding Research Centre, ICAR-National Dairy Research Institute, Karnal, were collected at weekly intervals from each bull without preputial washing and latter ejaculate...

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...

BACKGROUND Human semen quality in China has decreased in the last few decades. A previous study found that 61.1% of healthy males in Chongqing City in Southwest China had abnormal semen parameters values according to 1999 World Health Organization criteria. OBJECTIVE This cross-sectional study explored the associations between socio-psycho-behavioural factors and semen quality in Chongqing Ci...

INTRODUCTION Psychological factors are believed to play an important role in infertility and its treatment Psychological problems may be considered to be risk factors and the cause of reduced infertility, as well as contribute to an unsuccessful outcome of infertility treatment. OBJECTIVES The aim of the study was to investigate the correlation between semen parameters and quality of life in ...

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...

AIM To assess whether exposure to computers harms the semen quality of healthy young men. METHODS A total of 178 subjects were recruited from two maternity and children healthcare centers in Shanghai, 91 with a history of exposure to computers (i.e., exposure for 20 h or more per week in the last 2 years) and 87 persons to act as control (no or little exposure to computers). Data on the histo...

BACKGROUND & OBJECTIVE Mental stress, which is responsible for various disorders, is one of the most important medical and social problems. It is reported that mental stress causes abnormality in sperm quality. Most of the previous investigations done to study the association between mental stress and infertility were carried out with infertile men. Infertility itself and/or its therapy may lea...

semen quality and its relationship to fertility are major concern in animal production. the aim of this study was to assess the relationship between frozen thawed sperm characteristics and fertility following in vivo fertility through artificial insemination(ai). semen samples were collected from four buffalo bulls. semen volume and sperm concentration appeared to be significantly different (p0...