A significant segment of the equine industry is involved with the breeding and of mares and the management of their breeding cycle. Given the sheer numbers of animals involved, this means that the economic considerations make it absolutely necess …

The estrous cycle (or oestrus cycle) is the group of physiological changes that occur in sexually mature female mammals which are brought on by reproductive hormones. The changes facilitate fertility and reproduction.Horses (mares) are seasonally …

Mares are seasonally polyestrus, meaning that they experience regular estrus cycles during late Spring, Summer and early Fall, and none during the Winter. These cycles are controlled by hormones, which respond to increases or decreases in dayligh …

Gonadotrophin-releasing hormone (GnRH) is a hormone produced by the hypothalamus in response to an increase in day length. As the hours of daily sunlight (or photoperiod) increase, melatonin levels subside, allowing GnRH to be produced. Productio …

Altrenogest is a progestin of the 19-nortestosterone group commonly used to suppress or synchronize estrus in horses. It is used extensively in the reproductive management of mares to control the reproductive cycle, help maintain pregnancy, and h …

Mares are seasonally polyestrus, which means that they experience regular estrus cycles during late Spring, Summer and early Fall, and none during the Winter. These cycles are controlled by hormones, which respond to increases or decreases in day …

Mares are seasonally polyestrus, meaning that they experience regular estrus cycles during late Spring, Summer and early Fall, and none during the Winter. These cycles are controlled by hormones, which respond to increases or decreases in dayligh …

The administration of hormones to mares during breeding management is an essential tool for equine practitioners. Proper and timely administration of specific hormones to broodmares may be targeted to prevent reproductive disorders, to serve as a …

Deslorelin acetate is a potent synthetic gonadotropin-releasing hormone (GnRH) analogue.1 According to the literature, the advantage to using deslorelin over hCG to induce ovulation is that it possesses a smaller molecular weight than hCG, making …