The fast eating speed of dogs is related to its habits
The ancestors of dogs live in the wild all year round. Although they are mainly meat, they cannot often prey in prey, so they also eat some vegetarian foods. Therefore, dogs are omnivorous animals that belong to meat. Because the dogs eat fast for survival, they usually eat them slowly after swallowing, so the dog's digestion function is not bad. However, for the sake of the dog's health, we still have to cater to the digestive characteristics of the dog while feeding.
Animal classification belongs to carnivores. The ancestors of the dog are mainly predating small animals, and occasionally use tuber plants to fill their hunger. After the dog is trained by humans, the food nature has changed, and it becomes a omnivorous animal based on meat, but vegetarian food can also maintain life. But even so, they still maintain a digestive characteristics such as meat -based, such as dogs' teeth, and a pair of sharp canine teeth are presented up and down, which reflects the characteristics of carnivorous animals who are good at bite prey. Strong, can cut off the food. When the bones are bitten, the pressure between the upper and lower teeth can reach 165 kg, but it is not chewing well. Therefore, when the dog eats, it is really "gobbled" and rarely chews. Of course, this is also related to their previous living habits. Because dogs are living animals, many companions will be shared together after hunting. If they eat slowly, they may be hungry. Swallow the food without chewing.
The dog's esophageal wall is rich in horizontal muscles, and the vomiting center is developed. Therefore, when they eat poisonous things, they will vomit strongly and discharge poison swallowed into the stomach. It is a relatively unique defense skill. Dogs' saliva glands are developed, which can secrete a large amount of saliva, moist oral and feed, which is convenient for chewing and swallowing. The saliva also contains oligraphy, which has a bactericidal effect.
In the hot season, rely on the evaporation of water in the saliva to regulate the body temperature. Therefore, in the summer, we can often see the dog Zhang Kai's mouth, stretching the long tongue to replace sweat heat dissipation. The stomach of the dog is inactive, and the hydrochloric acid in the gastric juice is 0.4 ~ 0.6%, ranking first among livestock. Hydrochloric acid can expand protein and degenerate, which is convenient to break down and digestion. Therefore, dogs have a strong digestive ability to protein, which is the basis of its meat habits.
Dogs can empty all the food in the stomach 5-7 hours after eating, much faster than other herbivorous or omn-eating animals. The dog's intestines are shorter, generally only 3 to 4 times the body length, and the stomach with a single stomach and the intestinal tube of the rabbit are 12 times that of the body length. The dog's intestinal wall and strong absorption ability are typical meat characteristics. The liver of the dog is relatively large, which is equivalent to about 3%of the weight. The bile secreted is conducive to the absorption of fat. The dung center of the dog is not developed, and it cannot be discharged in the state of traveling as other livestock.
Dogs can digest and absorb protein and fat well, but because chewing is not sufficient and the intestinal canal is short, it does not have the ability to ferment, so the digestive ability of crude fiber is poor. Therefore, when we feed vegetables for dogs, it is best to chop them as much as possible and cooked. It should not be fed through all or the whole ground, which is not conducive to the dog's absorption.