In our opinion, it is normal for Labrador's nose to be black, but many owners will find that this is not the case. In many cases, Labrador's nose does not appear black. This phenomenon is related to many factors. Some Labradors may have black noses when they were young, but as they grow older, the color of their noses also changes. This is mainly related to their own genes, so it is difficult to change, but for some We can still improve the discoloration of the nose.

Labrador’s red nose is related to temperature and genes

In our opinion, it is normal for Labrador's nose to be black, but many owners will find that this is not the case. In many cases, Labrador's nose does not appear black. This phenomenon is related to many factors. Some Labradors may have black noses when they were young, but as they grow older, the color of their noses also changes. This is mainly related to their own genes, so it is difficult to change, but for some We can still improve the discoloration of the nose.

The reason why some Labradors do not fade is related to their own genes, and some are related to the external environment. We know that dogs’ noses will fade in winter. This is because it is related to enzymes. The enzyme responsible for producing melanin on the yellow Labrador dog's nose is just the opposite of tyrosinase. It is not stable at low temperatures, so in the low temperature state in winter, this enzyme will stop producing. chemical reaction. The rate of conversion into eumelanin on the skin will slow down, and the melanin on the nose will slowly fade away. In addition, certain drugs or toxic substances can also cause pigment fading.

Melanin is a black substance that produces color in the skin, eyes and hair of humans and animals. Enough to protect humans and animals from strong sunlight, two pigments have been found in Labradors

Eumelanin is responsible for producing black pigments, and Phaeomelanin is responsible for producing red/yellow pigments. It is important to note that Phaeomelanin is only found in the cells that make up coat color, not in the cells that make up skin.

Generally, Labrador's noses are black or dark brown. If a Labrador's nose is pink, it means there is no pigment, which is called a Dudley nose. In this case, points will be deducted during competitions, but this does not It means that the dog is not a Labrador, it just lacks pigment.

Sun exposure can improve the discoloration of dogs’ noses

About Dudley: Dudley is a yellow Labrador with recessive chocolate chromosomes.It can also refer to the nose or eye frames. The eye frames are pink and do not have any pigment in Labradors, but in fact this is not very common. Maybe a genetic mutation is responsible for this, but that's just a possibility. However, one thing to understand is that although having such a trait is not an ideal situation, it does not mean that it is some kind of genetic mutation. There is currently no evidence that Dudley noses are associated with poor health.

In fact, not only Labradors will die, many dog ​​breeds will have pink noses, such as Samoyeds, Alaskan Malamutes, Huskies, etc. This is also due to changes in temperature, which leads to pink noses. Many yellow Labas have dark noses in the summer, and their nose color will turn lighter in the winter. This is cyclical and happens almost every year.

This kind of pink nose is also called "Winter nose" or "Snow nose". To tell the difference between a pink nose caused by nose fading and another kind of pink nose called "Dudley", just check the dog The eye sockets and mouth parts. Normal dogs have melanin in these areas, but Dudley's dogs have pink or tan.

Therefore, the reason for the discoloration of Labrador's nose is caused by the weather in addition to its own genes. Therefore, under normal circumstances, owners do not need to worry. Paying attention to nutritional supplements and sun exposure can achieve certain improvements.