Sperm cryopreservation represents a powerful tool for livestock breeding. Several efforts
have been made to improve the efficiency of sperm cryopreservation in different ruminant …

Cooled preservation of semen is usually associated with artificial insemination and genetic
improvement programs in livestock species. Several studies have reported an increase in …

Infertility is an increasing global public health concern with socio-psychological implications
for affected couples. Remarkable advances in reproductive medicine have led to successful …

In recent years, the effects of novel antioxidants have played an important role in the
research focusing on fish cell protection. As food demand grows, aquaculture production …

Reactive oxygen species (ROS) and oxidative stress (OS), the imbalance between the
production of free radicals and the cellular antioxidant defenses, are discussed in relation to …

Leydig cells synthesize and secrete testosterone, and are regulated by Sertoli cells. These
two cell types may work together to regulate testicular androgen production. Studies have …

The ability of the neurohormone melatonin to ameliorate cryopreservation-induced damage
to spermatozoa has been demonstrated in several domestic species. However, it is unclear …

Seasonal breeding in buffalo is influenced by exogenous (photoperiod, climate, nutrition,
management) and endogenous (hormones, genotype) factors. Buffalo are negatively …

Our objective was to determine effects of melatonin or L-arginine on quality of frozen-thawed
sperm from heat-stressed (HS) rams. Ten Dorset rams were randomly allocated to either …

One of the many functions of melatonin in vertebrates is seasonal reproductive timing.
Longer nights in winter correspond to an extended duration of melatonin secretion. The …