In conclusion, the addition of acidifier, probiotics and oligosaccharides alone or combined in the diet improved microbial population status and immune function of weaning piglets.
由此得出结论：酸化剂、益生素、寡糖单独或合并使用均能改善断奶仔猪微生物菌群，增强其免疫功能。
The time of dynamic nitrogen adjustment were determined by regular patterns or by the comprehensive evaluation of soil mineral nitrogen concentration and rice population status.
氮素动态调控时期由高产栽培常用的追肥时期或根据水稻群体状况与土壤矿质态氮浓度综合判断确定，追氮量由模型计算获得。
The time of dynamic nitrogen adjustment were determined by regular patterns or by the comprehensive evaluation of soil mineral nitrogen concentration and rice population status.
氮素动态调控时期由高产栽培常用的追肥时期或根据水稻群体状况与土壤矿质态氮浓度综合判断确定，追氮量由模型计算获得。
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