bovine leukemia provirus: evidence of presence of part of gag gene inseminal plasma of naturally infected bullsit is of critical importance to understand the modalities of blv presence in semen, especially with regard to artificial insemination (ai). presence of bovine leukemia provirus was demonstrated in fresh and frozen semen samples by researchers. in this study paired blood and semen sampl...

BACKGROUND Severe mammary tissue damage during acute coliform mastitis in cattle is partially caused by oxidative stress. Although considered a gold standard biomarker in some human conditions, the utility of 15-F2t-Isoprostanes (15-F2t-Isop) in detecting oxidative stress in dairy cattle has not been validated. HYPOTHESIS Concentrations of 15-F2t-Isop in plasma, urine, and milk correlate with...

in order to determine calcium (ca), magnesium (mg) content and total antioxidant capacity (tac) of seminal plasma in buffalo and to study their associations with the semen characteristics, 54 semen samples were collected from 10 buffalo bulls; semen quality was evaluated, seminal plasma was then harvested by centrifugation and its ca and mg content were estimated and its tac determined. the ca ...

The aim of this study was to investigate the comparison between some seminal plasma parameters and age of the bull. Concentrations of various biochemical parameters like fructose, glucose, total proteins, albumin and inorganic ions including Na, K and Cl ions of seminal plasma of breeding Sahiwal bulls of different ageswere assessed. Methods: 40Sahiwal bullsdivided into 4 age groups.Semen (2ml ...

background: to determine any correlation between infertility and semen quality with concentrations of l-carnitine in human seminal plasma. methods: this case-control study performed in fatemieh hospital in hamadan, iran. seminal plasma of 72 infertile men and 80 men with proved fertility as a control group was investigated and l-carnitine level was determined using uv enzymatic test at 340 nm. ...

Background Levels of serum gonadotropins have direct effects on testicular functions and spermatogenesis. Assessment of levels of serum gonadotropins from fathered subjects and infertile patients indicates wide range diversity. In this study, we tried to find out whether the levels of seminal FSH and LH affect the parameters of seminal fluid analysis (SFA) and if there is any correlation betwee...

objective: cigarette is a rich source of oxidants and reactive nitrogen species. nitric oxide (no) in high concentration has deleterious effects on human sperm function. antioxidant defense system in seminal plasma protects spermatozoa from the attack of reactive oxygen metabolites. the purpose of this study was to determine the correlation between cigarette smoking with the no levels and the t...

In order to determine calcium (Ca), magnesium (Mg) content and total antioxidant capacity (TAC) of seminal plasma in buffalo and to study their associations with the semen characteristics, 54 semen samples were collected from 10 buffalo bulls; semen quality was evaluated, seminal plasma was then harvested by centrifugation and its Ca and Mg content were estimated and its TAC determined. The Ca ...

Background Levels of serum gonadotropins have direct effects on testicular functions and spermatogenesis. Assessment of levels of serum gonadotropins from fathered subjects and infertile patients indicates wide range diversity. In this study, we tried to find out whether the levels of seminal FSH and LH affect the parameters of seminal fluid analysis (SFA) and if there is any correlation betwee...