首页> 美国卫生研究院文献>Journal of Animal Science >PSVII-35 Using observed data as inputs of life cycle assessment provides a better approach to evaluate the dietary crude protein reduction for starting pigs.
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PSVII-35 Using observed data as inputs of life cycle assessment provides a better approach to evaluate the dietary crude protein reduction for starting pigs.

机译:PSVII-35使用观察到的数据作为生命周期评估的输入可以提供一种更好的方法来评估起始猪的日粮粗蛋白减少量。

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摘要

Life cycle assessment (LCA) has been widely used in swine production. However, some uncertainties are associated with LCA results, due to the diversity of production systems and agricultural practices, raising questions if the predicted data represents what actually happens in the pig system. The objective of this study was to evaluate the use of predicted and/or observed data as inputs of LCA of piglets (15 to 30 kg) in different dietary crude protein (CP) scenarios. Two animal profiles were created: feed intake and weight gain data representing the Brazilian national average (yp-AVG); and representing experimental conditions (yp-SPC). Performance and excretion of pigs were measured (yobs) and predicted (yp) for each CP scenario (19.2, 18.2, 17.2 and 16.2%) by using InraPorc
机译:生命周期评估(LCA)已广泛用于猪的生产。但是,由于生产系统和农业实践的多样性,与LCA结果相关的一些不确定性使人们怀疑所预测的数据是否代表了生猪系统中实际发生的情况。这项研究的目的是评估将预测和/或观察到的数据用作不同日粮粗蛋白(CP)情景中仔猪LCA(15至30 kg)的输入。创建了两个动物档案:代表巴西全国平均水平(yp-AVG)的饲料摄入和体重增加数据;以及并代表实验条件(yp-SPC)。使用InraPorc对每种CP情景(19.2%,18.2%,17.2%和16.2%)的猪的性能和排泄量(yobs)进行预测(yp)

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