Symptoms of calcium deficiency in Labrador:

1. Double rows of teeth. The deciduous teeth in the dog's teeth do not fall out, and the permanent teeth grow slowly or even have double rows of teeth or the teeth are irregular.

2. Skeletal dysplasia. Calcium deficiency can lead to valgus ribs, skeletal deformities and deformation of the forelimbs in dogs. If not treated in time, the consequences can be so severe that the dog can become unstable, limp, or even paralyzed.

3. Pica. Dogs with long-term calcium deficiency may also develop pica. They will eat their own feces and like to bite wood or pebbles.

4. Hair loss. After calcium deficiency, dogs will lose hair, become dull, become inactive, drool, etc.

5. Developmental delay. Calcium-deficient Labradors suffer from loss of appetite, thin body, delayed growth, and are shorter than dogs of the same age.

Methods for calcium supplementation for Labradors:

1. Dietary calcium supplementation. When feeding dog food with high calcium content on a daily basis, give Labrador some calcium-rich foods as supplementary food, such as dried shrimps, soy products, beef, kelp, etc.

2. Get more sun. When the weather is fine, take your dog outdoors for a walk. The ultraviolet rays in the sun will promote the absorption of calcium.

3. Eat calcium supplement products. Use a calcium supplement product specifically for dogs. The powder form can be mixed directly into the food and fed to help the dog replenish the calcium nutrition needed by the body in a timely manner.