Study on oestrous cycle in Arabian mares in Iraq

age blood breeding seasons ciclo estral comportamiento sexual comportement sexuel cycle oestral date diagnostic de gestation edad fertilidad fertilite fertility hormonas sexuales hormone sexuelle jument mares oestrous cycle ovulation performance de reproduction pregnancy diagnosis progesterona progesterone reproduction reproductividad reproductivity saison d'accouplement sang sangre sex hormones sexual behaviour timing yegua