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Iowa State veterinarian Jeffrey Zimmerman said about 1 million pigs move across state lines each week to other farms, and that outbreak responses must start within hours. He added that growing herd sizes reduce herd immunity, making herds more vulnerable to disease.
Heavy pig movement and larger herds raise the risk of rapid disease spread, which could cut hog supply and shift demand for meal and feed ingredients if an outbreak occurs.
avma.orgGreg Cima2017年4月12日在过去 69 次中性的疫病事件之后，生猪(瘦肉型) 在 5 个交易日内中位数变动 -0.2%（48% 上涨；中间一半区间为 -1.4% 至 +1.5%），20 个交易日内为 -1.6%。
各商品基准价相对事件前最后收盘价的变动。历史数据汇总同类过往事件；仅描述已发生的情况，不代表未来走势。不构成投资建议。
