Researchers in Denmark and Switzerland have studied that when the protease is added to the diet to reduce the protein content of the diet, the environmental impact has been significantly improved.
It is common to add enzyme preparations to improve the nutrient digestibility of the feed. The more common enzyme preparation is phytase, which can improve the utilization of phytate phosphorus, which is caused by the reduction of phosphorus pollution and the resulting eutrophication. An important tool for environmental issues. In a recent paper published in the International Journal of Poultry Science, KM Oxenboll of Denmark's Novozymes A/S and its collaborators, as well as partners of DSM Nutritional Products, explained that recently, proteases as feed additives. Gained wide industry attention.
The addition of proteases to the feed is intended to increase the proteolysis of the diet and thereby improve the use of dietary nitrogen. When animals are better able to use nitrogen, we can reduce the protein content of the diet, which in turn reduces the nitrogen content in the feces.
In a Life Cycle Assessment (LCA) trial, researchers studied reducing the dietary protein content and reducing the environmental impact of nitrogen excretion, ranging from feedstock production to broiler production to broiler sheds, including The whole process of fecal convenience.
This test analyzes various aspects of environmental impacts, including the release of nitrogenous compounds into the air and aquatic environment.
The researchers found that the use of proteases has significant benefits for each of the effects considered. The most important is the benefits associated with reducing ammonia emissions, which have dual effects on animal health and the environment, such as acidification and hypernutrition. Maximum results can be obtained when using proteases as a tool to reduce dietary protein content. And even if normal protein levels are used in the diet, the obvious benefits are observed.
Oxenboll and his collaborators concluded that the use of proteases can significantly reduce nitrogen emissions from livestock production, which is the goal of current livestock efforts.
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