The basis and current situation of the various weaning ages and phase feeding programs for piglets are expounded, especially their advantages and disadvantages are analysed in this review.
阐述仔猪不同断奶日龄及相应阶段饲喂体系的实施依据和应用现状，重点分析不同断奶日龄及相应阶段饲喂体系的利弊。
The aim of this review was to expound the active international cross-cultural research programs on quality of life and to analyze the current problems.
对当前国际上活跃的生命质量跨文化探究项目进行阐明，并分析存在的新问题。
The aim of this review was to expound the active international cross-cultural research programs on quality of life and to analyze the current problems.
对当前国际上活跃的生命质量跨文化探究项目进行阐明，并分析存在的新问题。
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