For cattle 30 months or older, which materials are SRMs?

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Multiple Choice

For cattle 30 months or older, which materials are SRMs?

Explanation:
SRMs are tissues that carry the prion agent and must be removed from cattle not intended for consumption. For cattle aged 30 months or older, the tissues most likely to harbor prions are neural and related tissues, so the SRMs include the skull, brain, eyes, spinal cord, trigeminal ganglia, dorsal root ganglia, and vertebral column. These tissues are chosen because prions concentrate in nervous system tissues, making them high-risk if consumed. In contrast, tissues like distal ileum and tonsils are considered SRMs for younger cattle, not for those over 30 months, and heart or lungs are not listed as SRMs for this age group.

SRMs are tissues that carry the prion agent and must be removed from cattle not intended for consumption. For cattle aged 30 months or older, the tissues most likely to harbor prions are neural and related tissues, so the SRMs include the skull, brain, eyes, spinal cord, trigeminal ganglia, dorsal root ganglia, and vertebral column. These tissues are chosen because prions concentrate in nervous system tissues, making them high-risk if consumed. In contrast, tissues like distal ileum and tonsils are considered SRMs for younger cattle, not for those over 30 months, and heart or lungs are not listed as SRMs for this age group.

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