BACKGROUND A previous European study found a longer time to pregnancy (TTP) among fertile women from Paris compared with women from other Western European countries. A co-ordinated, cross-sectional study of pregnant couples from Denmark (Copenhagen), France (Paris), Scotland (Edinburgh) and Finland (Turku) was therefore undertaken to assess differences in waiting TTP among couples from these ci...

This article will not discuss the technical points raised in the paper by Fugger et al. (Fugger et al., 1998), nor will it consider how semen is obtained, since by definition it is unacceptable, for example from the Vatican’s point of view. Let us suppose that all problems of safety and efficiency have also been solved. It seems we have to consider several kinds of possible indications: (i) pre...

How infectious a person is when infected with HIV depends on what stage of the disease the person is in. We use 3 stages, which we call primary, asymptomatic, and symptomatic. It is important to have a systematic method for computing all 3 infectivities so that the measurements are comparable. Using robust modeling, we provide high-resolution estimates of semen infectivity by HIV disease stage....

The effects of feed restriction and photoperiod on body weight (WTSXM) and age (ASXM) at onset of mature semen production in males and onset of lay in females of a broiler female line were examined. Feeding treatments were as follows: ad libitum (AL) and quantitative feed restriction (QR). Photoperiod treatments were as follows: open shed (OS), in which the chicks were reared under naturally in...

The influence of thawing procedures on fertility of semen in .25-ml Continental 3 straws was investigated in a series of eight trials utilizing 1,634 cows. The following pregnancy rates were obtained: Trial 1, 38.6 vs 23.0% (P<.05) for semen thawed in 75 C water/7 sec vs "in the cow"; Trial 2, 29.7 vs 22.2% (P>.10) for semen thawed in 75 C water/7 sec vs "in the cow"; Trial 3, 82.8 vs 61.6% (P<...

Storage of ram semen in liquid and frozen state, the diluents used for both methods, processing, cooling, freezing and thawing of semen are reviewed. Factors influencing the fertility of stored semen and methods used for improvement are discussed, and fertility results of long-term frozen stored ram semen are also given.

Received: August 31, 2009 Revised: October 05, 2009 Accepted: October 10, 2009

Vol. 11 | No. 02 | MarchApril 2014 | UROLOGY JOURNAL Vitrification‎has‎brought‎about‎important‎changes‎in‎cryopreservation‎and‎human‎fertility‎preservation.‎Easiness‎and‎speed‎and‎no‎need‎for‎costly‎freezing‎technologies‎ are‎reasons‎for‎its‎rapid‎development.‎Vitrification‎is‎the‎solidification‎of‎a‎liquid‎ without‎crystallization.‎As‎cooling‎continues,‎however,‎the‎molecular‎waves‎in‎the‎liqu...

Serum amyloid P component (SAP) belongs to the pentraxin family of proteins. SAP is evolutionary conserved, and involved in amyloidosis, innate immunity, inflammation, and apoptosis. We have previously described SAP in the male reproductive tract, where it occurs in seminal fluid, on spermatozoa, and in epididymal, seminal vesicle, and prostate tissue. In the present investigation, our aim was ...