Merle Collies: A Comprehensive Guide to the Breed

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Posted Nov 5, 2024

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Adorable Merle Border Collie Standing Against Rural Background
Credit: pexels.com, Adorable Merle Border Collie Standing Against Rural Background

Merle Collies are a unique and captivating breed, known for their distinctive coat pattern and charming personality. They're a type of Collie, a breed that originated in Scotland.

Merle Collies can be either rough or smooth coated, with the rough coat being the more common of the two. The rough coat is thick and coarse, while the smooth coat is short and smooth.

Their eyes are a striking feature, often being blue or odd-eyed, meaning one blue eye and one brown eye. This is due to the unique genetics that create the merle pattern.

What is a Merle Collie?

The merle gene is more common in some breeds than others, and you can find merle characteristics in crossbreed dogs.

The Border Collie breed is one of the most well-known merle dog breeds, and its coat can come in a variety of colors including blue merle.

A Blue Merle Border Collie's coat colors and patterns can vary, making each one unique.

Credit: youtube.com, Blue Merle Rough Collie: The First Year

This breed is suitable for active families with plenty of space and a yard, and they're known for being loyal and loving, intelligent, and easy to train.

Border Collies were originally bred to be high-energy working dogs, and many still herd sheep today.

The first Border Collie sheepdog trial was held in 1873, and it led to the establishment of the International Sheepdog Association in 1906.

For another approach, see: Old English Sheepdog Poodle

Health and Wellbeing

Merle Collies are generally a healthy breed, but like all dogs, they can be prone to certain health issues. It's essential to work with a reputable breeder who has had their breeding stock screened for potential health problems.

One of the health conditions you should be aware of is hypothyroidism, which can affect Merle Collies. This condition occurs when the thyroid gland doesn't produce enough hormones, leading to weight gain, skin problems, and other issues.

Merle Collies are also at risk of hip dysplasia, a condition where the hip joint doesn't form properly, leading to arthritis and mobility problems.

In addition to these conditions, Merle Collies can also be prone to cerebellar lipofuscinosis, a degenerative condition that affects the brain and spinal cord.

Here are some common health issues that can affect Merle Collies:

  • Hypothyroidism
  • Hip dysplasia
  • Cerebellar lipofuscinosis
  • Collie eye anomaly
  • Lens luxation

Physical Characteristics

A Merle Border Collie Wearing a Collar
Credit: pexels.com, A Merle Border Collie Wearing a Collar

The Merle Collie's physical characteristics are truly one-of-a-kind. They have a unique, mottled coat that's a result of the interaction between two types of melanin.

Their coat pattern can be a mix of black and white, gray and white, or even blue and white, giving them a striking appearance.

Merle Collies typically have a medium-length coat that requires regular grooming to prevent matting and tangling.

Broaden your view: Smooth Hair Collie

Rough

Rough collies have a distinctive appearance, and one of the most notable features is their coat pattern. A Rough Collie has either a black or brown merle pattern.

Their coat is a thick double layer that sheds heavily, especially during spring and autumn when they experience a blow. This means they need regular grooming to prevent matting and tangling.

Brushing them regularly is essential to prevent matting and tangling, and wiping down their fur will help to remove loose hair.

Smooth

Smooth Collies can come in a blue merle pattern, featuring white to pale or dark grey coats paired with darker patches.

Their coats require regular grooming, but they don't shed as much as Rough Collies.

Brushing them once a week is a good rule of thumb to keep their fur looking its best.

Genetic Eye Disorders

Credit: youtube.com, CHF Breeders Education Genetic Collie Eye Diseases

Merle collies can be born with normal eyes and vision, but they may also suffer from one of many genetic eye disorders common to the breed.

Single merle dogs often have one blue eye or a blue section in a brown eye, which is not harmful in itself.

Double merle collies, on the other hand, are more likely to suffer from eye health issues than the general collie population.

The following conditions commonly occur in collies and increase in likelihood or severity if the collie carries merle genes:

  • Microphthalmia — Dogs with microphthalmia are born with abnormally small eyes and may suffer from underdeveloped internal eye structures.
  • Persistent pupillary membrane (PPM) — PPMs are strands of tissue that bridge across eye structures and may affect vision or normal eye functions.
  • Cataracts — Affected dogs can be born with cataracts or lens opacities that prevent light and visual information from reaching the retina.
  • Iris abnormalities — The iris (i.e., the colored eye portion) may be underdeveloped, thin, or missing areas, causing abnormal pupil shapes.
  • Posterior segment abnormalities — The vascular cell layer, light-detecting retina, and optic nerve can be underdeveloped, resulting in varying degrees of vision impairment.

Some double merle collies may also have a mostly white coat and little to no pigment on their head or face fur.

Genetic testing is available to detect some of the collie's most common genetic eye disorders, but it's not a guarantee of future eye health.

If you plan to acquire a collie from a breeder, ensure the parents have been thoroughly screened for genetic issues and receive frequent eye examinations.

If this caught your attention, see: Eye Problems in Border Collies

Living with a Merle Collie

Credit: youtube.com, 1 month to 1 year, watch our border collie grow up

Living with a Merle Collie is similar to raising a sighted one, but with some special considerations. You should take certain safety precautions, such as keeping your collie in a fenced area or on a leash, especially if they're blind or partially blind.

Collies are loving and loyal family dogs, but genetic eye disorders and the merle gene can be a problem. Routine eye examinations and breeding stock screenings can help catch these issues early on.

Keeping your home safe and navigable for your Merle Collie is key. Avoid moving furniture when possible, keep floors clear of debris, and let your pet map your home on their own four feet rather than lifting and carrying them, which can be disorienting.

Puppies

The price of a Blue Merle Border Collie will vary depending on your location.

If you find a breeder, be prepared to pay more for the costs incurred during health screenings, vaccinations, and other expenses.

Credit: youtube.com, Dogs 101 Collie

You can adopt a Blue Merle Border Collie from a shelter or rescue, but this route takes more time and is not a guarantee that you'll get the breed you want.

The Blue Merle Border Collie is intelligent and easy to train.

They're happiest with active families and lots of yard space.

They would be an ideal pup if you live on a farm.

Temperament & Intelligence

Living with a Merle Collie can be a thrilling experience, but it's essential to understand their temperament and intelligence first. The Blue Merle Border Collie is very intelligent and can learn things quickly.

This breed thrives on activity and has off-the-charts energy levels, making it hard to keep it still for long periods. If you're the type that sits at home all day, this is not the canine for you.

Border Collies are extremely alert and sensitive, picking up on your cues fast. They'll detect the slightest whistle, raised eyebrow, or hand signal and respond promptly.

However, a Border Collie is strong-minded and independent, which can lead to misdirected energy if there's no job to do. This can result in chasing after other pets, cars, or children.

Proper socialization from a young age is crucial to prevent fearfulness and shyness in Border Collies.

Pet Ownership Essentials

A Merle Border Collie Wearing a Collar
Credit: pexels.com, A Merle Border Collie Wearing a Collar

If you're considering bringing a Blue Merle Border Collie into your life, you need to know that they have their own unique needs. A Blue Merle Border Collie has its own unique needs. They require regular exercise to stay happy and healthy, so be prepared to take them on long walks and playtime sessions.

Their coat requires regular grooming to prevent matting and tangling. You'll need to brush their fur daily and trim it regularly to keep it looking its best. This breed is highly intelligent and trainable, but they can be strong-willed at times.

You'll need to consider the potential health risks associated with the merle gene, including deafness and vision problems. A Blue Merle Border Collie has its own unique needs. They thrive on mental stimulation and training, so be prepared to engage them in activities that challenge their minds.

Final Thoughts

Living with a Merle Collie requires a lot of energy and activity, as they thrive on being busy.

Close-up of a Border Collie Red Merle Puppy with a Stick in the Mouth
Credit: pexels.com, Close-up of a Border Collie Red Merle Puppy with a Stick in the Mouth

The Blue Merle Border Collie is a beautiful breed that needs to be kept active to prevent boredom and destructive behavior.

You must be able to keep up with the dog's level of energy if you want to own one, as they will direct their energy elsewhere if they're not busy.

This breed is strong, agile, and full of energy, making it perfect for farms where they can do what they were originally bred for - herding.

See what others are reading: Kuvasz Dog Breed

Shawna Welch

Writer

Shawna Welch is a versatile and engaging writer with a passion for exploring complex topics in an approachable way. With a keen interest in animal behavior, Shawna has developed a niche expertise in canine behavioral issues, shedding light on common problems and offering actionable advice for pet owners. Her writing style is characterized by clarity, empathy, and a commitment to accuracy, making her a trusted voice in the field.

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