backgounds: a number of studies have focused on the effects of season of birth, as an environmental factor, on embryonic development. methods: in a retrospective descriptive work, heights (crown to heel), weights and head circumferences of the full term, normal, and singleton newborn infants in hamadan city (west of iran) were collected from their randomly selected files in fattemieh hospital d...

the objective of the present study was to detect polymorphism in follicle stimulating hormone receptor (fshr) and beta subunit of follicle stimulating hormone (fshβ) genes and their relation to litter size and body weight trait in baluchi, iran black and arman sheep breeds. pcr-rflp technique using acci and hinfi enzyme treatments employed to detection of polymorphism in fshβ marker site but de...