Barber D M
Vet Rec. 1978 May 13;102(19):418-20. doi: 10.1136/vr.102.19.418.
The circulating immune globulin levels and weights of 40 bought-in calves were measured as the group was introduced into a commercial calf rearing enterprise. Records of growth rate and mortality were kept during the 11 to 12 weeks the group remained on the premises. This was repeated with five further batches. No relationship could be found between the recorded performance parameters of the calves and either the immune globulin content of their serum or their weight at purchase.
在将一组40头购入的犊牛引入一家商业犊牛饲养企业时，测量了它们的循环免疫球蛋白水平和体重。在该组犊牛留在饲养场的11至12周期间，记录了生长率和死亡率。另外五批犊牛也进行了同样的操作。犊牛的记录性能参数与它们血清中的免疫球蛋白含量或购入时的体重之间均未发现关联。
