Dog's eyes may not play a real role during the day, but the dog's vision advantages are highlighted at night. Compared to us, dogs have much stronger night vision, and in the faint light, dogs still have strong ability to distinguish objects.
Therefore, we should not care about dog eyes. Vitamin A is very helpful to dog eyes. So let’s learn more about what vitamin A is the effect of dog eyes.
On the one hand, vitamin A plays an important role in maintaining normal vision. It is the component that constitutes the photosensitive substances in visual cells, namely rhodopsin, which is sensitive to weak light and three photosensitive substances that are sensitive to red, green and blue light respectively. When humans or animals lack vitamin A, they cannot synthesize enough rhodopsin, so objects cannot be seen in faint light, that is, night blindness.
On the other hand, if vitamin A is deficient, it will keratinize the epithelial tissue. The epithelium of the lacrimal gland stagnates the secretion of tears, drying the eyes, and causing dry eye diseases. Therefore, vitamin A is also called anti-dry eye vitamin.
In addition, vitamin A plays an important role in maintaining the integrity of epithelial tissue, normal physiology and reproduction.
How to prevent vitamin A deficiency?
Just avoid the cause. There are two main ways to cause vitamin A deficiency. One is primary deficiency:
Vitamin A is rich in green vegetables, carrots, animal livers and meat. If these substances are lacking in food for a long time, it is easy to lead to primary vitamin deficiency.
One is secondary deficiency: when dogs suffer from gastroenteritis, it affects the conversion of vitamin A into vitamin A, which affects the absorption and storage of vitamin A by the gastrointestinal tract. Therefore, when suffering from gastroenteritis and long-term diarrhea, secondary deficiency of vitamin A can easily lead to vitamin A supplementation.
How to supplement vitamin A, in addition to paying attention to adding some vegetables to your dog's diet, you can also eat some vitamin powder, which is not only good for dog's eyes, but also good for growth and development.