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May 18, 2020 at 2:19 pm #1726AnonymousInactive
For a healthy dog: water, protein, fat, carbohydrate are essential. Let’s learn about them together:
1. Water is one of the nutrients of dogs. The adult dog body contains about 60% water, and the proportion of puppies is higher. All the physiological activities and metabolism of all kinds of substances in dogs must be carried out smoothly with the participation of water. The specific heat of water is high, so it absorbs more heat. The heat generated in the process of metabolism of the body is carried to the skin or lungs through water, which has the function of regulating body temperature. Moreover, there is no special ability to store water in dogs. Water loss will cause death faster than food deprivation. When the water content in dogs decreases by 8%, there will be severe thirst, decreased appetite, reduced digestion, and reduced resistance to infectious diseases due to the drying of mucous membranes. Long term lack of drinking water will lead to blood viscosity and circulation disorders. When 20% of the body weight is consumed due to drinking water, it may lead to death.
2. Protein. Protein is the basis of dog’s life activities. It is the most abundant substance except water in the body, accounting for about half of dog’s dry weight. All kinds of tissues and organs in dogs, all kinds of enzymes involved in the metabolism of substances, and antibodies to prevent the body from getting sick are composed of proteins. In addition, proteins are also needed to repair trauma, replace aging and damaged cell tissues. Therefore, protein is the most important nutrient for dogs. The basic substance of protein is amino acid, about 20 kinds. Insufficient supply of dog protein or some essential amino acids will make protein metabolism in dog body become negative balance, which will cause loss of appetite, slow growth, weight loss, decrease of protein content in blood, affect the formation of antibody and reduce immunity. The quality of semen and the quantity of sperm decreased in male dogs. The female dog has abnormal estrus and is not pregnant. Even if it is pregnant, the fetus often dies or is deformed due to poor development. However, excessive feeding of protein will not only cause waste, but also lead to metabolic disorder in the body, resulting in dysfunction of the heart, liver, digestive tract, central nervous system, decreased sexual function, and serious acidosis. In general, the adult dog needs about 48 grams of protein per kilogram of body weight per day, while the young dog needs about 9.6 grams during the growth and development period.
3. Fat. Fat is one of the important sources of energy for dogs. When fully oxidized, each gram of fat can produce 39.3 kilojoules of heat, which is higher than carbohydrate and protein. The content of fat in dogs is about 10-20% of their body weight. When lack of dog food, it can cause serious digestive disorders and dysfunction of central nervous system, resulting in burnout, rough coat, lack of sexual desire, testicular dysplasia or abnormal estrus of female dog. However, too much fat storage will cause obesity, which will also affect the normal physiological function of dogs, especially the reproductive activity. The daily fat requirement of puppies is 1.1g per kilogram of body weight. The daily fat requirement of adult dogs is calculated according to the dry matter of feed, with the content of 12-14%. Carbohydrates are mainly used in the body to supply heat, maintain body temperature, and the source of energy in various organ activities and sports. Excess carbohydrates can be converted into fat and stored in the body. When the dog’s carbohydrate is insufficient, it needs to use the body fat, even protein to supply heat. As a result, the dog will lose weight and cannot grow and reproduce normally. The daily carbohydrate requirement of adult dogs can account for 75% of feed. The daily carbohydrate requirement of puppies is about 17.6 g / kg body weight.
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