A dog's fur consists of coat, fluff and decorative hair. Coat, also called coat, is the main part of dog coat color. Generally, the coat is long and thick, and there are many pith hairs, which mainly play the role of heat preservation. Decorative hair refers to hair that is born in the ear, tail and lower limbs and plays a decorative role. Dogs are generally divided into short-haired dogs, hairless dogs, long-haired dogs and silky dogs according to the length of their coats.
What kinds of dogs can be divided according to the coat characteristics?
Methods/steps
First, short-haired dogs:
Such as Sharpay, Lingti, Boxer, Great Dane, Dalmatian, Egyptian Hound, etc. The short hair character of dog coat is controlled by dominant gene L. The first generation of dogs and long-haired dogs with homozygous gene L show short hair characteristics, and the second generation will have character separation, that is, a small number of long-haired dogs will be produced.
What kinds of dogs can be divided according to the coat characteristics?
Second, the hairless dog:
Generally speaking, hairless dogs are limited to deformed offspring, but some dogs have this feature, such as chinese crested and Mexican hairless dogs. In general, these two dogs are not completely hairless, but their fur is attached to their heads, lower limbs and tails. Studies have shown that hairless traits are controlled by dominant H gene, and homozygous traits are fatal. Therefore, all living hairless dogs have heterozygotes Hh, and their genetic laws have sex-linked genetic characteristics. Most of the existing hairless dogs are females, and chinese crested has a history of more than 400 years, also known as "China naked dog". The average weight is 5.5 kg and the height is 23-30 cm. It looks like Italian Lingti, with pink or white skin, smooth, soft and wrinkle-free. Mexican hairless dogs and China crested dogs are similar in size, and there are two types. The big ones are almost completely confined to Mexico, and their reproduction is strictly controlled by scholars. Their weight is 1 1- 16 kg and their height is 40-5 1 cm. Small people are distributed outside Mexico, petite and elegant.