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.
Let's consider what a Paint horse is-it is a Quarter horse or Thoroughbred with excessive color. That should give you a good idea of their temperment. In my experience, AQHA or APHA horses that are bred to do cattle work tend to be more energetic and lively than many others in their breed.ou can breed for western pleasure and get a nice laid back horse, or breed for speed and get a hotter horse. List teh bloodlines you are looking at and you can get better information on how that particular line's temperment is. Source(s): Horse Owner for 35 years. Lifetime member of APHA.