Dog food is a food specially provided for pet dogs. It is an animal food between human food and traditional pet feed. It is mainly to provide basic life assurance, growth and development and health for all kinds of dogs. It has the advantages of comprehensive, high digestion and absorption rate, scientific formula, quality standard, convenient feeding and use, and can prevent certain diseases. At present, the vast majority of granular dog food is produced by the principle of puffing. Sonya Machinery is a manufacturer specializing in the production of puffing equipment. Let me tell you why the puffing process is used as the main process of dog food production.
Selection of pet dog food production equipment
1. The puffing process can increase the natural fragrance of the raw materials;
After the feed raw materials are extruded, the fragrance is increased, the palatability is improved, and the pet's appetite can be stimulated. The picky taste of dogs has always been a headache for dog food manufacturers. In order to solve the problem of palatability, some manufacturers will choose to add food attractants to achieve the effect of attracting food. However, compared with synthetic flavors, spices and other additives, the natural flavor of natural grains and fresh meat after puffing is more suitable for dogs to eat for a long time.
2. The puffing process can transform the molecular structure of the raw material to make the dog food easy to digest and absorb;
Due to the puffing process, the protein in the raw material of the dog food is combined with the starch matrix, so it is not easy to lose nutrients during feeding. The protein is released only when the digestive enzymes in the animal break down the starch, which increases the titer of the protein. The puffing process also denatures the protein, inactivates many anti-nutritional factors, changes the tertiary structure of the protein, and shortens the hydrolysis time of the protein in the intestine. For ruminants, puffing produces rumen non-degradable protein, that is, rumen-passing protein, which can avoid ammonia poisoning in animals and improve the utilization rate of protein. Secondly, the puffing treatment releases the encapsulated oil in the raw material molecules, which increases the heat energy value of the fat. Expansion can also combine fat with starch or protein to form complex products lipoprotein or lipopolysaccharide, reducing free fatty acid content.
3. The puffing process can increase the shelf life of dog food;
The puffing of raw materials of dog food also inactivates lipase, inhibits the degradation of oil, and reduces the deterioration of dog food caused by rancidity of oil components during product storage and transportation.
4. The puffing process can avoid various dog diseases caused by dog food;
The basic function of puffing dog food is to reduce the content of bacteria, molds and fungi in the raw materials, improve the hygienic quality of the feed, and provide aseptic and mature feed for the animal body. Thereby, the risk of disease in the animal body is reduced, and the addition amount of various pharmaceutical ingredients is reduced.
5. The puffing process dog food has more optional raw materials than the general process;
Since the puffing of the raw material will increase the gelatinization degree of the starch, a modified starch is formed, which has strong water absorption and bonding functions. Due to its high water absorption, more liquid ingredients (eg oils, molasses, etc.) can be added to the product. At the same time, because it has much stronger bonding function than ordinary starch, the amount of starch added during the puffing production process can be greatly reduced. This provides more choices for the selection of other raw materials. More cheap raw materials can be selected to replace those expensive raw materials in the formula, which can greatly improve the potency of low-quality raw materials and reduce costs without affecting product quality. Raw materials that can be added: corn meal, flour, rice flour, fresh meat (chicken, venison, fish, pork, etc.), meat meal (chicken meal, high-temperature fish meal, meat and bone meal, etc.), bone meal, soybean meal meal, vegetable meal, seaweed extraction material, grass fiber, fruit, powdered protein, various starches, etc.
This is why pelleted pet feeds such as dog food and cat food are generally processed using extruding equipment instead of the early pellet feed extrusion process.