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饲养试验
释义
饲养试验
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农学
饲养试验
释
feeding trial
饲养试验
选择条件(品种、性别、年龄、体重和生产性能等)基本一致的动物,分为若干组(其中一组为对照组),在一段时间内分别饲喂已知营养物质含量不等的饲粮,通过测定其生产性能、组织及血液生化指标的变化,或观察缺乏症状、过量症状出现的程度,确定动物对营养物质的需要量或比较饲料优劣的试验。
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Joule-Thompson expansion
Joule Thomson coefficient
Joule-Thomson coefficient
Joule Thomson effect
Joule-Thomson effect
Jounalism
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Jourdain
Jourdain principle
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Journalism and Communication Department of Communication University of China
Journalism and Communication Institute of Tsinghua University
Journalism and Mass Communication Monthly
Journalism and Mass Communication Quarterly
Journalism and Photography of Beijing Film School
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