Independent
Protective
Alert
Courageous
Intelligent
Loyal
Gentle
Social
Sweet
Fearless
Good-natured
Cheerful

Affectionate
Courageous
Good-natured
Calm
Dignified
Protective

New Rottlands are heavy shedders, but regular brushing can help manage shedding and promote a healthy coat.

American Mastiffs are moderate shedders, but regular brushing can reduce shedding and maintain coat health.

United States

United States

Rottweiler, Newfoundland

English Mastiff, Anatolian Mastiff

2000s

1990s

Brown

Brown
Amber

Black
Brown

Black

Black
Brown
Fawn
Sable
Brindle

Fawn
Brown
Brindle

A New Rottland can have a litter of 8-12 puppies on average. However, it's worth noting that the size of the litters can vary greatly. Factors that can influence litter size include the health of the mother, breeding history, and genetics.

An American Mastiff can have a litter of 10-12 puppies on average. However, it's worth noting that the size of the litters can vary greatly. Factors that can influence litter size include the health of the mother, breeding history, and genetics.

New Rottlands are known for their adaptability and can adjust well to different environments and lifestyle changes.

American Mastiffs have average adaptability to changes in lifestyle and living environments compared to other breeds.

New Rottlands typically have low vet costs due to their good health, but it's important to monitor their health and seek vet care when necessary.

While the American Mastiff breed is generally healthy, occasional vet check-ups are still necessary to address any health concerns.

Gastric Torsion
Hip And Elbow Dysplasia
Subaortic Stenosis

Joint Dysplasia

Entropion
Ectropion
Exposure Keratopathy Syndrome

Skin Problems
Foreleg Lameness
Eye Problems
Hyperthyroidism

Cardiac
Respiratory Tests
Skin Evaluation
Ultrasound
Internal Imaging (x-ray, CT scan, MRI, etc.)
Blood And Urine Analysis
Eye and Ear Examination

Eye Examinations
Serum Chemistry
Regular Full Physical Examination By Veterinarian
Full Blood Work
Blood Chemistry
Diagnostic Imaging
Skin Scrapings and Biopsies

New Rottland has very high social needs and requires regular mental and physical stimulation, a job or purpose, and companionship.

American Mastiff has average social needs and is less independent than other breeds.

New Rottlands have moderate energy levels and typical sleep patterns of 12-14 hours per day.

American Mastiffs are known for their relaxed and calm nature and enjoy long periods of sleep.

Farm work, Walks, Fucking, Playdate, Fetch, Walk, Run, Off-leash, Going on drives

Fetch, Play

New Rottlands are high-energy dogs. They need mental as well as physical exercise. These dogs require a lot of your involvement and without it they can, and will, become problematic dogs.

American Mastiffs are medium-energy dogs and typically enjoy socializing and playing casual or even sustained games of chase with other dogs. They may also have occasional periods of barking or racing around the house.

There's really no limit to how far you walk your dog as long as they're comfortable. For New Rottland, it's at least 15 miles / week. Just remember to build distance and stamina gradually over time.

There's really no limit to how far you walk your dog as long as they're comfortable. For American Mastiff, it's at least 10 miles / week. Just remember to build distance and stamina gradually over time.

In general most New Rottlands usually need at least 90 minutes of exercise daily. This can be spread across the day and include all sorts of high-energy activities, like walking, running and playing.

In general most American Mastiffs usually need at least 60 minutes of exercise daily. This can be spread across the day and include all sorts of high-energy activities, like walking, running and playing.

Ideally, New Rottland should be brushed at least 2 or 3 times a week (preferably daily) improve shedding.

American Mastiff should be brushed at least once a week. Of course you can give them more frequent brushes if you find that they are still shedding a lot

Pin Brush
Comb
Nail Clipper

Pin Brush
Slicker Brush
Deshedder
Nail Clipper

For an average 130-150 pound (59 - 68 kg) New Rottland feed 4.5 cups daily. But, keep in mind, the amount you feed is going to be dependent on the quality of the food you are feeding.

For an average 160-200 pound (73 - 91 kg) American Mastiff feed 4 cups daily. But, keep in mind, the amount you feed is going to be dependent on the quality of the food you are feeding.

The average cost of a New Rottland is somewhere $4.50 - $5.60 per day.

The average cost of an American Mastiff is somewhere $3.90 - $4.20 per day.

The average per month expenses of a New Rottland is between $134 - $168. This makes an average of $1608 - $2016 per year. It will be on the higher side when the dog is still small because it will need more frequent visits to the vet, shots.

The average per month expenses of an American Mastiff is between $112 - $126. This makes an average of $1344 - $1512 per year. It will be on the higher side when the dog is still small because it will need more frequent visits to the vet, shots.

This breed is sensitive and requires gentle handling and a calm home environment.

American Mastiffs have average emotions and adapt well to different situations.

New Rottlands are good with cats, but early training is needed to prevent chasing behavior.

American Mastiffs are average in their friendliness toward cats and tend to do well with them, especially if raised together.