The color of a dog's nose is mainly determined by genetic factors. It is the same as human skin and hair. Different breeds of dogs have different noses. Some have black noses, some have pink noses, some have liver noses, and some even have decors. For example, some nomads have decors since childhood, especially those with meteorite noses. So the natural color of nose is various. If your dog's nose is pink or liver color or decor, don't worry about it. It's normal. The main thing that bothers us is "discoloration". Let's talk about discoloration with 360 common sense.
Several cases of dog nose discoloration
1. Change with age:
My nose was very black when I was a kid. Why does it turn red when I grow up? Or my nose has been very black, but now it's old, and it's beginning to fade and fade.
2. Weather change:
My nose turns red as soon as my home Wang arrives in winter. Is it frozen out? Or when the temperature drops, my nose turns red from black. Even some winter sun, eh? Red nose began to turn black, this is why?
3. Accidental random change:
There is no special regularity, sometimes it's red, sometimes it's black, or it's red since we changed to plastic dog basin. Why is this?
4. Disease situation
Some diseases can cause nose discoloration, such as vitiligo, and some skin diseases, but in this case, other parts of the body will also have some symptoms.
The truth is coming. Why does your nose change color?
In view of the above mentioned situations, the first two discoloration caused by the change of age and temperature are normal discoloration. Why do they have such discoloration?
Tyrosinase, a metal oxidase containing copper, is the key enzyme in melanin synthesis. It can control the speed and effect of melanin synthesis. Vitiligo we have heard that the onset of vitiligo is related to tyrosinase antibody.
Now that we know about tyrosinase, what does it have to do with nose discoloration?
So the question is, why does my nose turn pink in winter and black in summer? Because tyrosinase is very sensitive to temperature, it is afraid of cold! When the temperature drops, its activity decreases, and then it moves lazily, so the generation of melanin is affected. So it turns pink. Then when summer comes and the weather is hot, it starts to be active, with more melanin and a black nose.
Why do older dogs have red noses?
This is because with the increase of age, some dogs will have less tyrosinase and lower activity, which will affect the production of melanin and discoloration of nose. This is a normal case of nose discoloration due to the influence of tyrosinase, which is more normal than age, temperature and diet.
Other abnormal reasons
Another cause of nose discoloration is skin allergies, often plastic. If you have a black nose, but you change a plastic dog basin, your nose will turn red. You should pay attention to this. It's probably because your Wang is allergic to plastic, so his nose is discolored. In this case, it's OK to change the dog basin. What enamel, what stainless steel.
Scratch or illness
Some dogs are mischievous and accidentally scratch their noses. In the process of nose healing, the color will be red or liver color. When the scar goes away, it will return to black after a period of time. Sometimes the dog's nose will change color when he is sick. When the dog's body recovers, the nose will become a normal color.
If the dog has vitiligo, the color of the nose will turn pink, but it is also easier to determine whether it is vitiligo. Because vitiligo in general the body's skin will also become shallow, or white.
Protect the red nose
Although pink nose or other light colored nose is also normal, but compared with black nose, it has its disadvantages, that is ultraviolet. Melanin can effectively absorb UV radiation and reduce the impact of UV on the body. So pay special attention to sunscreen in summer, especially when the sun is hot, don't go out to walk the dog. It's easy to get heatstroke without saying, and it's easy to burn your little pink nose. But you can use sunscreen, specific what sunscreen easy to use, you can ask the hair child his mother!
Seaweed powder black nose
Well, back to the previous question, why do some excrement shoveling officials feed seaweed powder or other things that claim to be able to black the nose, and then the nose really turns black?
We have to look for the possible reason from tyrosinase. Another characteristic of this enzyme is that copper, zinc, iron and other metal elements play an important role in promoting the activity of tyrosinase. And seaweed has these metal elements, so when you feed seaweed, these metal elements in seaweed may promote the activity of tyrosinase, thus promoting the generation of melanin, and then the nose will be black.
But notice that I use the word "may" because there are also related studies to extract substances from seaweed that can inhibit tyrosinase, thus realizing the skin whitening effect of human beings.
So whether the seaweed powder can be black nose or not can not give you a positive answer, only give you a possible reason. So if all your dogs are normal, you don't have to worry about the color of your nose.