1, short stature and thin figure.

In the dog's growth and development stage, trace elements can not be lacking, otherwise it will lead to stagnation of physical function, slow growth and development, inactivity, emaciation and anemia. Therefore, your dog will always be small, neither fat nor tall. It depends on whether it is lack of trace elements or it may be infected with parasites.

2. Abnormal hair loss

Dogs lose their hair seriously, usually because of season change or physiological reasons. Usually hair loss is still relatively small. If you see a dog with serious hair loss, there will be problems such as redness, dementia and ulcers. In addition to skin diseases, the cause is probably zinc deficiency.

3, often rummage through the trash can

Sometimes when we see a dog rummaging through the trash can, we wonder if it is not full. In fact, dogs will still rummage through the trash can after eating dog food. Besides being bored and playful, it may also be caused by iodine deficiency.

We can feed the dog some fish to supplement nutrition every other day, or feed some trace element tablets.

4. Eat grass, chew and eat colorful.

Dogs always eat the food given by their owners when they are young, so they don't look for anything to eat everywhere. If one day you find a dog with a normal diet eating grass and loquat, it's probably pica. Remember to supplement it with trace elements, which can help improve the dog's eating behavior.

5. Have picky eaters and anorexia behavior

Dogs are picky and anorexic. Besides being tired of eating dog food or eating too many heavy snacks, it may also be caused by the lack of trace elements. The owner can feed the dog with animal liver and radish once a month to help supplement vitamins, promote growth, promote digestion, prevent diseases, and keep skin healthy and hair smooth.