PURPOSE To analyze the differences of semen parameters in Korean young population for three periods from 2002 to 2013. MATERIALS AND METHODS A total of 516 semen samples were collected from Korean men presenting for infertility, varicoceles or other infectious problems for three periods from 2002 to 2012: January 2002-December 2003, January 2007-December 2008, and January 2012-December 2013. ...

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...

the main purpose of this study was to evaluate the influence of the photoperiod on the seminal traits of crossbreed wool-producing rams throughout on year period. for the effect of photoperiod two periods were considered: decreasing daylight length (summer and autumn) and increasing daylight length (winter and spring). for the study 5 baluchi × moghani (bl×mg) and 5 arkharmerino × moghani (am×m...

Semen characteristics were studied among 200 fertile Pakistani men aged 24 to 48 years. Each subject had fathered at least two children. The mean +/- SD values of volume, sperm density, motility percentage, grade of motility and percentage of oval sperms were 3.11 +/- 1.2 ml, 58.21 +/- 26.41 million/ml, 61.2 +/- 21.3%, 3.01 +/- 0.94 and 70.2 +/- 15.36% respectively. There was no deteriorating e...

Collection frequencies and certain characteristics of Peregrine Falcon (Falco peregrinus) semen were investigated using semen from a falcon trained to copulate on a specially designed hat. Semen volume increased significantly when collections were increased from two to three times/day, but cells/ejaculate decreased. No significant difference in number cells/ejaculate or cells/microliter was det...

background: this study was conducted to evaluate the effect of melatonin on semen quality and quantity changes and increase of reproductive efficiency in lori-bakhtiari ram in the non-reproductive season. objectives: the purpose of this study was to investigate the effect of melatonin on testicular size and semen qualitative and quantitative changes in the non-breeding season is lori-bakhtiari ...

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...

The main purpose of this study was to evaluate the influence of the photoperiod on the seminal traits of crossbreed wool-producing rams throughout on year period. For the effect of photoperiod two periods were considered: decreasing daylight length (summer and autumn) and increasing daylight length (winter and spring). For the study 5 Baluchi × Moghani (BL×MG) and 5 Arkharmerino × Moghani (AM×M...

The semen samples of 1,110 (one thousand, one hundred and ten) Igbo males attending infertility clinic, aged between 30-50 years were collected and analyzed. The specimens were collected and analysed in the microbiology laboratory of the University of Nigeria Teaching Hospital (UNTH) Enugu, Eastern Nigeria. The standard method of masturbation after 3-5 days of prior abstinence from sex before s...