the effect of subcutaneous injections of vitamin c on the seminal characteristics of markhoz bucks (2–4-year-old) was studied. the bucks, trained to serve an artificial vagina, were randomly allotted into three equal groups (n = 4) and received daily either zero (1 ml normal saline; control group), or 20 (vitc20 group) or 40 (vitc40 group) mg per kg body weight vitamin c from july 06, 2006 to o...

OBJECTIVE To investigate firstly the relationship between semenogelin I (Sg I) expression and seminal vesiculitis. Seminal vesiculitis is one of the most common diseases in male urogenital system. However, the cause and the pathogenesis of seminal vesiculitis remain unknown. Sg I, mainly synthesized and secreted by seminal vesicle, is abundant in human seminal plasma and has antibacterial activ...

Evidence supports the involvement of nitric oxide (NO) in a Varity of male reproductive processes such as spermatogenesis, spermiogenesis, sperm motion, sperm metabolism and sperm capacitation. However, Low concentration of NO is essential in biology and physiology of spermatozoa, but high amounts of NO is toxic and has negative effects on sperm functions. On the other hand, it is established t...

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...

Comparative studies were made of semen samples from subfertile RR and normally fertile rr cockerels. These samples were obtained either by abdominal massage or directly from the tip of papillae. The numbers of collected sperm did not differ between genotypes and the sperm from RR cockerels were less motile than those from rr cockerels irrespective of the semen collection method. The uric acid c...