皇城羊场饲草硫及绵羊血清硫含量的测定及其相互关系的初探
杨保平，张力，马呈图，郭天芬,王宝全，李文辉，李时敏
The determination of sulfur in forage and lamb weaner serum and the prelimilary study on their relationship in huangcheng farm
动物营养学报 . 1999, (03): 63 -0 . 

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