High retention rate of heat-sensitive vitamins: Ensuring balanced feed nutrition. Vitamins (such as vitamin C and vitamin E) are essential nutrients in feed, participating in animal growth, development, and immune regulation. However, vitamins are temperature-sensitive, and prolonged high-temperature heating leads to significant vitamin loss. The "high-temperature, short-time" heating characteristic of dry fish feed production equipment allows for vitamin retention rates exceeding 85%, far higher than the 70%-75% achieved with wet extrusion. For example, in the production of aquatic fry feed, adding vitamin C results in an 88% vitamin C retention rate in feed produced using a dry extruder, effectively improving the stress resistance and survival rate of fish fry. If a wet extruder is used, the vitamin C retention rate is only 72%, failing to meet the nutritional needs of fish fry and leading to a 10%-15% decrease in survival rate.
Good retention of probiotic activity: Enhancing feed functionality. Probiotics (such as Bacillus and Lactobacillus) are core components of functional feeds, regulating the balance of intestinal flora and enhancing immunity. However, probiotics are easily inactivated at temperatures exceeding 120℃. The Dry Fish Feed Pellet Extruder machine can precisely adjust the screw speed and feed rate to control the raw material temperature at 120-130℃, while shortening the high-temperature residence time, thus achieving a probiotic survival rate of over 70%. For example, in the production of piglet nursery feed, adding Bacillus probiotics results in a 75% probiotic survival rate in feed produced using a dry extruder, effectively improving piglet intestinal health and reducing diarrhea rates; while the survival rate of probiotics in feed produced using a wet extruder is less than 50%, significantly reducing functionality and failing to achieve the expected breeding results.
Minimized Amino Acid Oxidation Loss: Preserving Protein Nutritional Value. Amino acids (such as lysine and methionine) are the core components of protein. High-temperature heating leads to the oxidative decomposition of amino acids, reducing the protein nutritional value of the feed. The rapid heating and rapid discharge characteristics of the Dry Type fish feed pellet processing machine reduce the oxidative decomposition of amino acids, achieving a retention rate of over 80%. For example, when producing high-end pet food, adding essential amino acids such as lysine and methionine results in an amino acid retention rate of up to 82% in feed produced using a dry extruder, which can meet the nutritional needs of rapidly growing pets. If a wet extruder is used, the amino acid retention rate is only 65%-70%, which can lead to insufficient nutrient intake and slow growth in pets.
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