另设一对照组，其饲粮中不添加天冬氨酸镁和氯化钙。

Another group with neither magnesium aspartate nor calcium calcium supplementation was used as control.

youdao

另设一对照组，其饲粮中不添加天冬氨酸镁和氯化钙。

Another group with neither magnesium aspartate nor calcium calcium supplementation was used as control.

youdao