Pigs and chickens show a natural interest in coal ash, often scavenging for it and consuming it. This behavior has led to research into its nutritional value. According to analysis, coal ash contains 1% calcium, 1.8% potassium, 0.06% phosphorus, 0.27% sodium, and 3.16% magnesium. It also includes trace elements such as copper, zinc, and manganese. While the quantities of these minerals are not sufficient on their own, they can be beneficial when added in small amounts to animal diets. These nutrients play an essential role in the normal physiological functions, growth, and reproduction of pigs and chickens.
Studies and practical experience have shown that feeding pigs and chickens a controlled amount of coal ash does not cause any adverse effects. In fact, it can improve their health and performance. The recommended method is to use fully burned coal ash, crush it, and sieve it before mixing it into feed. For pigs, the recommended proportion is 3%, while for chickens, it's 5%.
Using coal ash as a feed supplement offers several advantages. It helps reduce feed costs by replacing some of the more expensive ingredients. It also turns a waste product into a useful resource, which is beneficial for both economic efficiency and environmental sustainability. By utilizing coal ash in this way, farmers can promote a more circular and eco-friendly approach to animal farming.
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