ABSTRACT The aim of this study was to evaluate the reproductive performance sows in individual stalls (Stall) or group-housed into groups on days 3 5 (Pen5) 38 42 (Pen42) after breeding. data collected from operating system farm establishing average weekly performances that gave birth, for four years, except Pen5 system, which evaluated three years. Statistical analyses were performed using SAS...

background: this study was conducted to evaluate the effect of melatonin on semen quality and quantity changes and increase of reproductive efficiency in lori-bakhtiari ram in the non-reproductive season. objectives: the purpose of this study was to investigate the effect of melatonin on testicular size and semen qualitative and quantitative changes in the non-breeding season is lori-bakhtiari ...

Background: Since sperm parameters have a critical role in reproductive function, the objective of this study was to evaluate the effects of concomitant ethanol and saccharin consumption on sperm parameters in adult mice. Chronic ethanol consumption suppresses male reproductive function and sexual behavior in laboratory animals and humans. Furthermore, alcohol abuse by males has been correlated...