What is a double merle? A dog that inherits two dominant versions of M is a double merle. In Australian Shepherds these dogs usually will have excessive amounts of white, be deaf in one or both ears, and have serious and generally blinding eye defects.

Double merle Australian Shepherds (result of merle-to-merle breeding) have special needs but still make great pets.

This double whammy of the merle gene results in a homozygus merle or double merle puppy often referred to (incorrectly) as a lethal white. Lynette This is Kya, a female double merle Australian Shepherd.

2022年5月13日 · What is a Double Merle Australian Shepherd? A double merle Aussie happens when two merle Aussies are bred together and the puppy inherits two dominant M (Merle) genes. This causes the dog to have an extreme lack of pigment in …

What is a double merle? A double merle, sometimes called a “lethal white”, is a dog who was bred from two dogs with a merle patterned coat (see photo), such as some Australian Shepherds. There is a dominant (not recessive) gene in merle dogs that links together to cause vision and hearing impairments in the puppies from such a breeding ...

2022年1月17日 · Merle Australian Shepherds (AKA Merle Aussies) have beautiful coat markings that can come in many colors including blue merle, red merle, double merle, harlequin merle, dilute merle & bi blue merle. In addition to their coats, Merle Australian Shepherds often have striking blue eyes.

Aussies with two copies of the merle gene (a matching pair) are called homozygous merles, or double merles. These dogs have a high risk of eye deformities or deafness because of the way the merle gene also affects development of the eyes and ears. What Do …

2024年8月22日 · What Is a Double Merle? When a dog with the merle colouration (Mm) is bred to another merle dog, then there is a chance that a double merle (MM) will be produced.

2023年9月10日 · The health of Double Merle Aussies is predisposed to two major issues. According to the Australian Shepherd Health and Genetic Institute, Aussies are frequently born deaf, blind, or both; however, in some cases, their deafness or blindness may be partial.

Rescue and Sanctuary is a 501 (c) (3) Australian shepherd rescue specializing in double merle awareness. We are passionate about helping Australian shepherds and border collies, particularly those born with hearing and vision impairments as a result of merle-to-merle breeding.