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负的阴阳离子差可以增加血液中离子钙浓度，增强钙平衡调节激素的反应。
The effects of dietary cation-anion difference on sow calcium metabolism and relative indexes;
youdao
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负的阴阳离子差可以增加血液中离子钙浓度，增强钙平衡调节激素的反应。
The effects of dietary cation-anion difference on sow calcium metabolism and relative indexes;
youdao