Pentian (detail introduction)
Dogs have been a friend of human loyalty for more than 10,000 years, so the owner's humanized habits are not surprising. But even if dogs have a long -term contact with humans, their genes maintain their originality, and they are the same as 99%of the Pinglin Gray Wolf DNA. This genetic relationship allows Smithsonian Institut to redefine the dog from the type of the owner (Canis Familiaris) into Canis Lupus Familiaris. In other words, moss wolves, plain gray wolves, and pet dogs belong to the genetic types of Canis Lupus. It has an internal organs that obviously make in order to digest meat. Like wolves, dogs are also carnivorous animals. In order to understand why dogs are classified as meat categories and which foods are most suitable for them, they need to first understand the differences between carnivorous animals, omnivorous animals, and vegetarian animal visceral structures.
Main features of meat digestive system:
The gastrointestinal, sour and simple gastrointestinal of carnivores. This digestive system can quickly digest the fat and protein from animals. Dogs have strong ability to secrete hydrochloride. The value can be kept at 1-2 (a person is 4-5).
The saliva of carnivorous animals does not contain saliva amylase, so it can only be used to secrete amylase and digest carbohydrates. Put the dog as a omnivorous animal or vegetarian animal. In order to digest carbohydrates, the pancreas will work unusual. The tooth tip of the carnivores (designed to cut meat rather than grind plants). The long and pointed teeth of the carnivores are suitable for killing prey and tearing meat. The hinge joint mouth of sharp teeth and vertical switch is used to capture prey and tear meat to swallow, rather than chewing grain food. The triangular molars have uneven edges, and the function is like a sawtooth -like blade, smoothly cutting items. The carnivores do not chew food because in order to prevent damage to the oral cavity, the mouth of the mouth cannot secrete the enzyme that decomposes protein. The carnivores do not mix food with saliva -they swallow the bite meat directly. In terms of the physiological structure of internal organs, dogs are simply domesticated wolves. The nutrition required by dogs is the same as their ancestors in the wild. For them, they can maintain the healthiest state to achieve these nutritional needs. Protein is a nutrition that is indispensable for dogs -body function is necessary, such as: cell regeneration, maintenance tissue, production system hormone, supply capacity and strength, etc. Although protein is very important, not all proteins are equal.
Three factors to judge protein quality are:
1. Source of protein
Animal protein and plant protein have different amino acid structures. Animal proteins are perfect protein, while plant proteins are imperfect protein.
2. Amino acid composition
Animal protein contains all dogs in growth and maintenance and health. Plant proteins, such as corn yellow pulp, soy flour, and protein separations, are not ideal. It is important to dogs, and the lack of amino acids in plant proteins include: arginine, taurine, omeidine, lysine, and sprum.
3. Estaberable
The key characteristic of judging quality is the digestibility of protein. After all, what is useful to be digested with a relatively high -quality protein? Basic organization. In simple terms, the gastrointestinal system of the dog is short, and the digestibility of plant protein is much lower than that of animal protein. Animal protein is the best choice, high digestibility, and also contains all the amino acids needed by dogs. Animal fat is often viewed by people who love healthy people, but fat is a very important nutrition for dogs. Most people want to reduce the fat in their food, so forgetting that fat has a very important role for dog health. Just like protein, the fat of different structural tissues has different value. Although dogs eat a lot of meat, this will not cause cholesterol problems, nor will they cause heart disease.
Speaking of now, everyone should know that dogs need the fat from animal sources, not from plants.