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Eggshells are a rich source of minerals, composed mainly of 94% calcium carbonate, 1% magnesium carbonate, and 5% protein. To prepare them for animal feed, first rinse the shells with clean water, then boil them in boiling water for about 30 minutes to sterilize and remove any impurities. Afterward, dry the shells thoroughly and grind them into a fine powder. This mineral-rich powder can be added to livestock and poultry diets as a natural supplement. For pigs, it is typically included at 1–2%, for cattle and sheep at 0.5–1%, and for hens at 3–4%. It serves as an excellent source of calcium and other essential minerals.
Rabbit manure is another valuable resource when properly processed. Dried rabbit manure contains approximately 18.7% crude protein, 4.3% fat, and 2% ash. There are several ways to incorporate it into pig feed. One method involves drying and crushing the manure before mixing it into the feed at a specific ratio. Another approach is to sun-dry the manure, soak it in water until softened, and then mix it into the feed. Fresh manure can also be used on the same day, with a recommended daily amount of 0.2 kg for piglets and 0.3 kg for growing pigs. This practice not only reduces waste but also provides additional nutrients to the animals.
Peanut shells, often considered agricultural by-products, are actually a good source of fats, starch, sugars, minerals, and vitamins. When crushed and mixed with wheat bran or other feeds at a 10% ratio, they can enhance the nutritional value of the diet. This mixture has been shown to improve egg production in chickens by up to 20%, making it a cost-effective and sustainable feed additive.
By utilizing these organic materials, farmers can reduce feed costs while improving the health and productivity of their livestock. These methods promote a more circular and environmentally friendly approach to animal farming.