Fainting or near Fainting. Rapid Heartbeat â Tachycardia. When the heart beats too quickly (usually above 100 beats per minute), the lower chambers, or ventricles, do not have enough time to fill with blood, so they cannot effectively pump blood to the rest of the body.
If a horse has two copies of Gray, all offspring of this horse will be gray. Research indicates that horses with one copy of Gray often retain some of the original pigment while homozygotes tend to progress to almost completely white. Gray is found in many breeds and is the predominant color of the Lippizaner breed. Gray horses have a high incidence of dermal melanomas that are commonly seen around the tail and head. Over 70% of Gray horses older than 15 years will develop melanoma.
Additional Facts and Other Important Details. The Shire horse is a kind of draft horse with legs covered with white long hairs. It has a broad back, dense rounded body and muscular build. Furthermore, it is known for its dense bones, long legs as well as powerful hindquarters. In the United Kingdom, the Shire Horse Society is responsible for setting the standards for this breed. In the United States, there is the American Shire Horse Association. This kind of horse comes in three major colors, namely gray, brown and black. Based on the standards set for this particular breed of horse, it must have widely spaced eyes, a Roman nose as well as a long head.