Rice D A, McMurray C H, Kennedy S, Ellis W A
Vet Rec. 1986 Dec 6;119(23):571-3.
A double blind controlled trial was carried out on four commercial dairy herds, to investigate the effect of one 50 mg injection of selenium, 10 days before parturition, on the incidence of weak calves. Although the treatment marginally increased the selenium status of treated calves it did not decrease the incidence of the weak calf syndrome.
在四个商业化奶牛场进行了一项双盲对照试验，以研究在分娩前10天注射一次50毫克硒对弱犊牛发病率的影响。尽管该处理略微提高了接受处理的犊牛的硒水平，但并未降低弱犊牛综合征的发病率。
