BACKGROUND Research has suggested an association with ambient air pollution and sperm quality. OBJECTIVES We investigated the effect of exposure to ozone (O3) and particulate matter < 2.5 microm in aerodynamic diameter (PM2.5) on sperm quality. METHODS We reexamined a previous cohort study of water disinfection by-products to evaluate sperm quality in 228 presumed fertile men with different...

The objective of this study was to investigate individual fixed effects in an animal model for breeding value estimation for semen traits of pig sire breeds. Data (151,755 ejaculates collected from 2000 through 2007 from 2,077 Duroc, sire line of Large White, Piétrain, and single cross boars between these breeds) were from 20 AI centers in the Czech Republic. Traits considered per ejaculate wer...

Little detailed information is currently available on the incidence and morphological characteristics of abnormal sperm in the emu (Dromaius novaehollandiae) and of ratites in general. This situation is further compounded by the lack of a uniform system for the morphological classification of avian sperm defects. Considering the important role that sperm morphology plays in the assessment of se...

background: current microscopic experimental methods cannot diagnose dna damages present in spermatozoa .therefore, some methods are needed to address the abnormality of the genetic material status on the sperm samples. as reported by many investigators aniline blue staining technique has been used for identifying sperm chromatin condensation. also, chromomycin a3 is used for evaluation of the ...

Tests were applied to extended, chilled boar semen to further define those factors associated with return to estrus in inseminated female pigs (sows and gilts). Females were each inseminated twice with the same batch of extended chilled single-sire semen that was concurrently assessed at the Charles Sturt University Andrology Laboratory (CSUAL) in Australia. Semen traits tested were pH, clump s...

BACKGROUND The high frequency of aneuploidy sperm raises concerns that there may be an increased incidence of aneuploid offspring in ICSI programmes. In order to assess the role that chromosome complement plays in normal and abnormal fertility, detailed molecular cytogenetic studies must be done on sperm samples from men with normal and abnormal fertility. METHODS To understand more clearly t...

Aim: The present experiments were conducted (a) to evaluate the semen attributes of older Rhode Island Red (RIR) roosters and the inter-trait relationships, (b) to test sperm washing and storage duration suitable for gene transfer experiments. Materials and Methods: The semen characteristics of older RIR roosters were studied, and Pearson correlation analysis was done to demonstrate the inter-t...

Formaldehyde (FA), a ubiquitous environmental pollutant, has long been suspected of having male reproductive toxicity. However, FA male reproductive toxicity was inconclusive due to dearth of human studies. Therefore, we sought to investigate whether occupational exposure to FA affects semen quality. Semen quality including five conventional parameters and seven kinematics parameters were compa...

BACKGROUND AND OBJECTIVES In this study, the harmful effects of formaldehyde (FA) on serum testosterone levels and epididymal sperm characteristics were investigated. In addition, possible protective effect of lavender oil was evaluated. MATERIALS AND METHODS For this purpose, 21 adult male Wistar-Albino rats were used. The rats of group I was used as control group. The rats of group II were ...