Shetland Sheepdog (Definite Introduction)
For us, generally we only need to judge a person's age from his appearance. It can be judged, but it is really a problem for dogs, because their appearance does not change particularly much, so how to judge the age of dogs has also become a problem. How to judge the age of a dog? The method is to examine their teeth. The teeth of the dog can be a good indicator of their age. However, this method can only give a rough estimate and is not very thorough.
Newly born puppies do not have teeth in their mouths. Generally, they will start to grow teeth when they are about 20 days old. By 4-6 weeks of age, the dog’s deciduous incisors will be fully grown. , by the age of 2 months, all the deciduous teeth are fully elongated, and they are white, thin and pointed.
As the dog grows up, it will start to replace the first milk incisor when it is 2-4 months old; when it is 5-6 months old, it will replace the second and third milk incisors. and deciduous canine teeth. All the deciduous teeth in the pet dog's mouth will be replaced by permanent teeth when they are about 8 months old.
Under normal circumstances, the permanent teeth of a 1-year-old dog are evenly long, white and bright, and there are sharp protrusions on the upper part of the incisors; in a 1-and-a-half-year-old dog, the large peak of the first incisor tooth of the mandible is worn until it is flush with the small peak. This situation is called peak disappearance; in a 2-and-a-half-year-old dog, the peak of the second incisor of the lower jaw disappears; by the time of 3 and a half or 4 and a half years old, the peaks of the first and second maxillary incisors disappear. At the age of 6-7 years, the peak of the third mandibular incisor disappears, the canine teeth are blunt and rounded, the first mandibular incisor is worn to the root of the tooth, and the wear surface is vertically oval; the wear surface of the second mandibular and first maxillary incisor of a 10-year-old pet dog is Longitudinal oval shape. When the dog is 16 years old, its incisors fall out and the canine teeth are incomplete.
From this we can see how to judge the age of dogs. It can be roughly judged through their teeth. Naturally, the accuracy of this method is not very high, but there is currently no better way to judge. Out of dog age.
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