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“Not an approved feed ingredient”: California issues reminder on walnut shells

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February 3, 2023
By Bree Rody


The Commercial Feed Regulatory Program (CFRP), part of California’s Department of Food and Agriculture, issued a reminder to the state’s livestock producers that walnut shells are not an approved feed ingredient.

The Feb. 2 statement states, “They are a physical hazard for livestock because of sharp hard edges, even when finely ground.”┬áThe statement added, “They also provide no nutritional value to livestock as a feed ingredient.”

By-products of walnut production and processing can include those defined as “Nut Meats,” which are defined as such: “Ground Cull Nut Meats or Ground Nut Meat Screenings is the ground fragments, immature and culled nut meats obtained in the cleaning and grading of nut meats. They shall be free of shells, hulls, dirt and other foreign material.” If a cull nut walnut product does not meet this definition, it cannot be distributed or used as a feed formula.

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