Artificial insemination is a well-established and widely used method for genetic improvement in cattle breeding industry. Recently, researchers have shown an increased interest in the cryoprotective effects of minerals and antioxidants on semen. Previous studies on calcium (Ca) and magnesium (Mg), two main macro-minerals, have mainly investigated their roles in mammalian spermatogenesis and fer...

The present study was conducted to evaluate the in vivo fertility of frozen thawed boar semen. Twenty ejaculates collected from six mature boars were frozen in a programmable freezer. After freezing the semen was evaluated for different sperm quality parameters. Twenty five sows were inseminated artificially utilizing frozen thawed semen. The percentage of sperm motility, live sperm, live intac...

This study was conducted to determine chromatin integrity and DNA damage by DNA electrophoresis and comet assays of buffalo fresh and frozen semen. Semen samples were collected from four buffalo bulls and evaluated after freezing for semen motility, viability, sperm abnormalities, chromatin integrity and DNA damage. A significant variation was found in semen parameters after thawing. Highly sig...

OBJECTIVE The main objective of this study was to assess semen characteristics of patients with testicular cancer before cryopreservation and after thawing, to evaluate the consequences of this technique on sperm quality in patients with testicular cancer. METHODS Five hundred eighty-nine samples from 543 patients with testicular cancer were cryopreserved between 1995 and 2015, one aliquot pe...

bovine venereal campylobacteriosis, caused by campylobacter fetus subsp. venerealis (cfv), is regarded as one of the major threats to the cattle industry around the world. abortion and infertility are two important reproductive problems in cows infected with c. fetus subsp. venerealis. reports on the presence of cfv are scarce in the cattle, in iran. therefore, the present study was designed to...

| There are several types of antioxidants which can be use in buffalo semen preservation. The current study was performed to the influence viz., Coenzyme Q10 (CoQ10), L-Carnitine (LC), or N-Acetyl-Cysteine (NAC) added extender on freezability and fertility spermatozoa. Semen Egyptian bulls (n=5) were pooled extended with tris (1:10) without addition antioxidant (E1), i.e., 0.03 mM CoQ10 (E2), 3...

antioxidant effect of olive leaf extract (ole) was studied on motility, viability, plasma membrane integrity of spermatozoa and malondialdehyde production in 12 ross 308 roosters at their 30 weeks of age. semen samples were collected by abdominal massage in 5 times. in each session after the initial sperm assessment, collected samples were pooled and diluted with sexton extender.samples were sp...