作为美洲畜牧业的经典概念，“猪循环”（hogcycle）所指的就是这种供求和价格互相牵制的循环——按此理论，玉米原料丰收时玉米价格下跌，养猪企业利润拉高之后增产，猪肉价格随后供过于求下跌，养猪数量减少导致玉米需求减少，随后玉米价格下跌……在这种周而复始的“猪循环”中，另一轮周期的到来便可以解决前一个周期的问题，这本质上是经济周期表现出的一个侧面。
目的探讨血红素加氧酶- 1 (HO - 1)在体外循环猪模型中的肾保护作用。
Objective: To examine the role of heme oxygenase-1 (HO-1) on renal protection in cardiopulmonary bypass porcine models.
以27为最终循环数进行半定量PCR，结果显示瘦肉型猪的表达量高于脂肪型。
Then Semi-quantitative PCR was performed with 27 cycles and the result was that adiponectin mRNAs in lean pigs were higher than obese one.
纳“猪流感是一个巨大的恐慌了一会，但是那已经普遍消失，一旦有消息循环的。”
The swine flu was a big scare for a moment, but that has generally died away once it got out of the news cycle.
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