They provide marketable products that can be produced by small-scale, household production systems, and are generally of higher value and less vulnerable to critical harvest timing than many crops.

畜牧提供可由小型家庭生产体系生产的可销售产品，总的来说价值比许多作物高，而又不像许多作物那样易受关键收获时间的影响。

youdao

The answer is that the trust fund is populated with special non-marketable securities whose value is not subject to the vicissitudes of the market.

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As with most marketable currencies, equity in a biotech can suffer from deviations from this underlying data-supported value, which can result in over-pricing of assets that lack the intrinsic quality or robustness.

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