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Using agricultural by-products like stalks, husks, and leaves as animal feed helps in waste reduction and offers a cost-effective feed source for farmers.

Single-cell proteins from bacteria, yeast, and fungi can be rapidly produced and are a rich source of protein and vitamins, providing essential nutrients for livestock while being produced sustainably.

Using by-products from industries like brewing or milling provides a nutrient-rich feed while minimizing waste and providing a use for otherwise discarded materials.

Algae can grow quickly and produces a high protein content, which can substitute for fishmeal or soy in animal feed. Its cultivation can also absorb CO2, contributing to a reduction in greenhouse gases.

Repurposing edible food waste as livestock feed not only tackles food waste challenges but also lessens the need for traditional feed crops, reducing the pressure on arable land.

Insect meal is a sustainable protein source as insects convert feed into protein efficiently, emit fewer greenhouse gases, and can be raised on organic waste, reducing environmental impact.

Incorporating legumes like clover into pastures can fix nitrogen in the soil, reducing fertilizer need and providing a high-protein forage source for grazing animals.