The objective of this research was to verify the presence of spermatic abnormalities on semen of Brycon orbignyanus after cryopreservation. Semen was collected from ten four-year-old males who presented secondary reproductive characteristics for migrating fish. Sperm was evaluated for motility, vigor and spermatic ...

Gossypol isolated from cottonseed was fed to sexually adult male langurs at 50 and 100 mg/kg body weight per day for 90 days. Semen was collected every 2 wk, and the observations made on semen characteristics showed gossypol's detrimental effect. The gossypol administration caused a significant decline in percent sperm cells motility ...

1. The major objective of this study was to examine the influence of 24-h storage of semen at low temperature on semen characteristics and fertilising ability of spermatozoa in two native breeds (Kadaknath - KN, Aseel Peela - AP) and White Leghorn (WL) chicken. 2. Various physical and biochemical properties of freshly ejaculated ...

The aim of this study was to evaluate the direct effects of vincristine on semen quality in dogs with transmissible venereal tumor (TVT). We examined the semen of 17 dogs suffering from TVT during vincristine treatment. Each animal received 0.6 mg, i.v. vincristine sulphate per square meter of body surface, per week for 4 wk until complete regression of ...

The semen quality of 57 workers from a welding plant in South India and 57 controls was monitored. Blood nickel and chromium concentrations were determined by ICP-MS. Analysis of semen samples was performed in accordance with World Health Organization criteria. The blood level of nickel and chromium for the 28 exposed workers was 123.3 +/- 35.2 and 131.0 ...

Longitudinal data were analyzed for seminal characteristics of rhesus monkeys and beagles. The monkeys were exposed to DBCP; the beagles were exposed to acute or chronic whole body gamma irradiation. The semen was analyzed for volume and sperm concentration. Sperm were measured for percent motility, swimming speed, and head dimensions. ...

This study was carried out to assess the in vitro quality of canine semen frozen in an ultrafreezer at -152 degrees C and to evaluate the male-to-male variation of frozen semen in five male dogs of the Canarian Mastiff breed. Four ejaculates of each dog were processed individually (5% glycerol and 0.5% Equex) to reach a final concentration of 100 x 10(6) ...

This experimental work was carried out to validate the use of a -152 degrees C ultra-low temperature freezer to freeze and store canine semen. The semen of three dogs was pooled and processed to obtain a final dilution with a concentration of 100 x 10(6) spermatozoa/mL, glycerol at 5% and Equex at 0.5%. Then, four freezing protocols were tested to evaluate ...

The effects on semen and the function of accessory gonad of workers after short and long term exposure to benzene, toluene, and xylene were examined. The semen and blood of 24 married workers exposed to benzene, toluene, and xylene were collected. Routine sperm characteristic, acrosin activity, and Lactate dehydrogenase C4 (LDH-C4) ...

The aim of this study was to review the existing literature on the effect of war on female and male fertility. A MEDLINE search for studies that included participants defined as infertile because they were unsuccessful in achieving a pregnancy after a year and studies that assessed the effect of war on semen parameters and menstrual dysfunction were performed. Twenty articles ...

Field investigations (n=23) were made over a 3-yr period at North American boar studs and farms in which the primary complaint was sperm agglutination in association with decreased sperm longevity of extended semen, and increased regular returns to estrus and/or vaginal discharges across parity. Microscopic examination of extended semen from these units ...

The objective of this study was to evaluate the effect of long-term melatonin treatment applied during the non-breeding season on semen characteristics, endocrine function of testicles and baseline level of insulin-like growth factor-I (IGF-I) in Awassi rams kept in the temperate continental zone of Europe and used as semen donors in ...

This experiment was to investigate the effects of increasing the level of dietary Vitamin E (Vit. E) on cloacal gland size, foam production and semen characteristics of male Japanese quail (Coturnix coturnix Japonica). One hundred and eighty male Japanese quail chicks (day old) were randomly distributed to three dietary treatments for a period of 25 weeks. ...