狗的习性（Dog habits）.docVIP

狗的习性（Dog habits） 1. the dog belongs to Mammalia, Carnivora, canine. 2. dogs to digest than herbivorous animal short, is 3~4 times the body length (horse, rabbit 12 times as long as the body). 3. dogs are carnivorous animals, accustomed to eating meat and bones, and eating meat and fat. But due to long-term livestock farming, they can also be omnivorous or vegetarian, and have poor digestion of vegetables. 4. intelligent and responsive, considered by scientists to be one of the most intelligent animals on earth. 5. has many virtues. Devotion to the master, devotion to courage and sacrifice, and a strong sense of duty (the dog) are the favorite of mankind. 6. dogs, olfactory olfactory organ and olfactory nerve is developed. Nasal long, nasal mucosa filled with olfactory nerve, can smell diluted 1of organic acids, especially for animal fatty acids more sensitive, dog smell ability over 1200 times. 7., the dogs hearing is also very sensitive, 16 times more sensitive than people, you can hear 5 ~ 5.5 Hertz (HZ) sound. 8. both visual and taste were poor. It is a color blindness (red green color blindness) which can only be seen in the view of blue, yellow and grey, so it can not be conditioned by red green as conditioned stimulus. The weak ability of hyperopia (no macular retina, the dog is no clear vision, feeling of moving object is sensitive), only 20 to 30 meters; but the horizontal visual range more widely than people, who is 1800, dogs amounted to 2500). Dogs have a poor sense of taste, mainly by smelling the freshness or decay of food. 9. dogs were single estrus animals per year. Each litter has 2~8 births, with a life span of 10~20 years. 10. dogs have a normal body temperature of 39 (38.5 to 39.5) degrees centigrade. Brief introduction of the dog is a carnivorous animal feeding, need to be prepared more in the feed of animal protein and fat, supplemented by vegetarian ingredients, in order to ensure the normal development of physique and health of the d