What is a rarely used method for sampling livestock due to its destructive nature?

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Multiple Choice

What is a rarely used method for sampling livestock due to its destructive nature?

Explanation:
Destructive sampling removes tissue, causing lasting damage and welfare concerns, so it’s rarely used for routine live-animal testing. Excision involves surgically taking a piece of tissue, which is invasive, can cause pain and infection, and requires veterinary procedures and recovery time. Because of these downsides—impact on animal welfare, potential effects on production, and logistical challenges—excision is reserved for specific diagnostic needs or post-mortem situations. In contrast, non-destructive methods like swabbing or sponging collect samples from surfaces without harming the animal, making them far more common for regular sampling.

Destructive sampling removes tissue, causing lasting damage and welfare concerns, so it’s rarely used for routine live-animal testing. Excision involves surgically taking a piece of tissue, which is invasive, can cause pain and infection, and requires veterinary procedures and recovery time. Because of these downsides—impact on animal welfare, potential effects on production, and logistical challenges—excision is reserved for specific diagnostic needs or post-mortem situations. In contrast, non-destructive methods like swabbing or sponging collect samples from surfaces without harming the animal, making them far more common for regular sampling.

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