What are the uses of feed enzyme additives for laying duck feed?
Enzymes are proteins with special functions synthesized by animals and plants. They are also catalysts to promote the digestion of proteins, fats and carbohydrates, and participate in biochemical reactions in various metabolic processes in the body. The addition of enzymes to the laying duck feed can improve the digestibility of nutrients.
Commonly used feed enzyme additives include single enzyme preparation and compound enzyme preparation. Single enzyme preparations, such as α-amylase,β-glucanase, lipase,cellulase and phytase; complex enzyme preparations are made by mixing one or more single enzyme preparations with other single enzyme preparations, Or fermented by one or more microorganisms. The compound enzyme preparation can simultaneously degrade various bases (various anti-nutritional factors and nutrients) that need to be degraded in the feed, and maximize the nutritional value of the feed. Domestic and foreign feed enzyme preparation products are mainly compound enzyme preparations, such as protease and amylase.
Enzyme preparations are mainly used to supplement the shortage of endogenous enzymes in animals; compound enzyme preparations based on glucanase are mainly used in feeds with barley and oat as the main raw materials; compound enzymes mainly based on cellulase and pectinase The main function is to destroy the plant cell wall, release the nutrients in the cells, which are easily affected by digestive enzymes, promote digestion and absorption, eliminate anti-nutritional factors in the feed, and promote the digestion and absorption of animals; cellulase, protease, amylase, saccharification Enzyme, glucanase, pectinase-based composite enzymes can combine the joint action of the above enzymes, and have a stronger help for digestion. The amount of enzyme preparation depends on the size of the enzyme activity. Different enzyme preparations have different activities, and the effect of supplemental enzyme preparations is related to the age of animals.
Due to modern aquaculture, the macromineral nutrient lacking in the feed industry is phosphorus, but 70% of the phosphorus in the seeds of soybean meal, cotton meal, rapeseed meal, corn, bran and other crops is phytate phosphorus, which cannot be used by ducks. Faeces are excreted in vain. This not only causes waste of resources and environmental pollution, but also has anti-nutritional factors in the digestive tract of animals, which will affect the absorption of cations such as calcium, magnesium, potassium, and iron, and protein, starch, fat, and vitamins. Phytase can hydrolyze phytic acid (inositol hexaphosphate) to release absorbable available phosphorus, which not only eliminates anti-nutritional factors, increases available phosphorus, but also improves the absorption and utilization of other antagonistic nutrients.