How Many Puppies Do Spanish Mastiffs Have? Calculator for Predicting Spanish Mastiff Litter Size

Quick Links: Table of Contents

• Average Litter Size of Spanish Mastiff
• Calculator to Predict How Many Puppies Spanish Mastiff Will Have
• How Big Will a Spanish Mastiff Puppy Get?
• How Much is a Spanish Mastiff Puppy
• How Long is a Spanish Mastiff Pregnant?
• How to Ensure a Successful Pregnancy in Spanish Mastiff
• Conclusion on Spanish Mastiff Litter Size

Average Litter Size of Spanish Mastiff

Researchers from the Norwegian School of Veterinary Science did a study where they counted the numbers of puppies in 1 different Spanish Mastiff birth litters.

From this study, the researchers found that the average number of puppies that Spanish Mastiffs can have is 13 puppies. Also, the Spanish Mastiff can have as few as 13 puppies per litter and as many as 13 puppies per litter.

See how the litter size of the Spanish Mastiff compares to that of other dog breeds below:

Read this article to learn about how many puppies dogs have.

Calculator to Predict How Many Puppies Spanish Mastiff Will Have

According to the result of the research carried out by researchers from the Norwegian School of Veterinary Science, the number of puppies a Spanish Mastiff will have depends on the following main factors:

• The size of the breed (most important factor): Giant dog breeds tend to have a bigger litter size, while smaller breeds give birth to a smaller number of puppies
• The method of mating: Natural mating results in a larger litter size than artificial insemination.
• The age of the female dog: Check out the chart below to see how many puppies a female Spanish Mastiff is likely to have at different ages.

According to research, the following factors do not affect litter size:

• The time of the year of the litter was born (season of birth): Although, from the study, litters born in the Spring seem to be larger than litters from other seasons, however, the difference was not of significance.
• The number of times a female dog has given birth in the past (known as parity): The age of the female dog is more important to the extent that it makes parity insignificant.

Based on the important factors that affect litter size, the researchers from the Norwegian School of Veterinary Science developed formulas for predicting the litter size of dogs.

We have developed the Spanish Mastiff litter size calculator above based on their formulas. Use the calculator to predict how many puppies a Spanish Mastiff will have based on the age, and method of pregnancy for a Spanish Mastiff

The calculator tells you how many puppies your Spanish Mastiff will have if your Spanish Mastiff gets pregnant today. The calculator assumes that the length of pregnancy will be two months.

Note that we are NOT in any way encouraging you to breed your Spanish Mastiff. Dog breeding requires expertise. If you want to be breeding dogs, get the necessary training. Also, work closely with a veterinarian when breeding a dog.

The table below shows the average litter size to expect from a Spanish Mastiff at different ages. This table applies to a Spanish Mastiff that conceives through natural mating.

How Big Will a Spanish Mastiff Puppy Get?

A Spanish Mastiff puppy will grow up to weigh around 140 to 220 pounds. Furthermore, a Spanish Mastiff puppy will grow up to be 26 to 35 inches.

Learn more about Spanish Mastiff weight and how big Spanish Mastiffs grow here

How Much is a Spanish Mastiff Puppy

The average price of a Spanish Mastiff puppy is $1050. The price of a Spanish Mastiff puppy ranges from $1000 to $1050.

Since the Spanish Mastiff has an average litter size of 13, therefore a Spanish Mastiff litter birth is worth $13650.

To learn more about the price of Spanish Mastiff puppy, check our review on how much Spanish Mastiff puppy cost, and Spanish Mastiff buying advice.

How Long is a Spanish Mastiff Pregnant?

Spanish Mastiffs are pregnant for 63 days on average (2 months) after conception. However, this is an average value. The length of pregnancy in Spanish Mastiffs can range from 58-68 days.

However, note that it is difficult to know the exact day that your Spanish Mastiff conceives because conception may not happen at the same time that mating happens.

Sperm can live inside a female Spanish Mastiff for several days after mating before conception occurs.

How to Ensure a Successful Pregnancy in Spanish Mastiff

To ensure that your Spanish Mastiff successfully gets pregnant and deliver its puppies, here at the things you can do:

• Feed your Spanish Mastiff well: A good diet will ensure that your Spanish Mastiff has the nutrients and the energy it needs to get pregnant and maintain the pregnancy.
• Make sure your Spanish Mastiff is in good health: Ensure you take your Spanish Mastiff to the Vet care regularly for checkups, make sure your Spanish Mastiff gets regular exercise. Also, make sure that your is not overweight or underweight.

To learn how to check if your Spanish Mastiff is overweight or underweight, check out this resource.

Conclusion on Spanish Mastiff Litter Size

Spanish Mastiffs can have 13 puppies per litter birth on average. The number of puppies that a Spanish Mastiff will have depends on factors such as the age of the Spanish Mastiff and the method of pregnancy (natural or artificial insemination).

Breeding Spanish Mastiffs the right way requires expertise and should be done after sufficient training.

Also, you should work closely with a veterinarian when breeding a Spanish Mastiff. There are a lot of nuances involved in breeding a dog, which we do not have the time or the space to discuss here.

However, working with a veterinarian will ensure that your Spanish Mastiff gets the right treatment necessary to make healthy puppies.

The litter size research study that we used for this article was conducted on Spanish Mastiffs in Norway. However, the authors of the research believe that the results can be generalized to other countries that have similar dog management systems as Norway.