Husky (certain introduction)
During the day, the dog's eyes may not be able to play their true role. However, at dusk, the advantage in the dog's eyes became apparent. Compared to us, dogs' night vision is much stronger, and their ability to distinguish objects is still very strong in dim light. Therefore, we usually cannot take care of dog eyes. Vitamin A is very helpful for dog eyes. So let’s take a closer look at the role of vitamin A on dog eyes.
On the one hand, vitamin A plays an important role in maintaining normal vision. It is the factor that forms the photosensitive substances in visual cells, that is, rhodopsin that is sensitive to weak light and separate to red light. Three kinds of photosensitive materials that are sensitive to green light and blue light. When people or animals lack vitamin A, they cannot see objects in dim light because they cannot synthesize enough rhodopsin, which is night blindness.
On the other hand, if vitamin A is lacking, epithelial tissue will become keratinized. The epithelium of the lacrimal gland blocks the penetration of tears, making the eyes dry and causing eye diseases. Therefore, vitamin A is also called an anti-eye vitamin.
In addition, vitamin A plays an important role in maintaining the integrity of epithelial structures, normal psychology, and reproduction. How to prevent vitamin A deficiency? Just hide the reason from the leader. There are two main ways to cause vitamin A deficiency. One is intrinsic deficiency: vitamin A is relatively abundant in green vegetables, carrots, animal livers and meat. If the food is long-term lacking of these substances, it will easily lead to the disease. Sudden vitamin deficiency. One is a secondary deficiency: when dogs suffer from gastroenteritis, vitamin A is originally transferred to vitamin A, which affects the absorption and storage of vitamin A by the gastrointestinal tract. Therefore, in the case of gastroenteritis and long-term diarrhea, it is easy to cause secondary deficiency of vitamin A. At this time, more attention should be paid to the supplement of vitamin A.
</p>
</p>