Grade
Grade mule refers to a mule without formal registration or with undocumented parentage, not to an animal of lower worth. It is still a horse-donkey hybrid, most often by a jack donkey out of a mare, and may show almost any useful size or type. Some grade mules come from known local mares and jacks but were never entered in a registry; others have passed through sales with little history. Coat color may mirror horse genetics, so bay, black, chestnut, gray, dun, buckskin, palomino, or pinto animals all occur.
A grade mule is usually judged on the ground in front of the buyer. Age, dental condition, hoof shape, sound movement, trail or harness experience, and response to catching and leading carry more weight than papers. Rescues and sanctuaries often use the grade designation when intake history is sparse. These mules still need regular farrier and dental care, secure fencing, and feed matched to an efficient metabolism. For future breeding plans, only the horse and donkey parents matter, because the mule itself is almost always sterile.
Colors: Bay, Black, Brown, Buckskin, Chestnut, Dun, Gray, Grey, Grullo, Palomino, Piebald, Pinto, Red Dun, Red Roan, Roan, Skewbald, Sorrel, Spotted, White