Merriman M J
Can J Comp Med. 1971 Oct;35(4):269-73.
Pre-colostral and post-colostral sera of seven Holstein calves and colostral whey were analyzed immunoelectrophoretically. IgM, IgG(1) (fast), and IgG(2) (slow) were demonstrated while IgA was not detected in serum of new-born calves before colostrum feeding. In post-colostral serum IgG, IgM, in relatively higher levels, and IgA were present which corresponded with the classes of immunoglobulins found in whey. These observations suggest that the developing bovine fetus may be capable of independent immune response.
对7头荷斯坦犊牛的初乳前和初乳后血清以及初乳乳清进行了免疫电泳分析。在初乳喂养前新生犊牛的血清中，检测到了IgM、IgG(1)（快速）和IgG(2)（慢速），而未检测到IgA。在初乳后血清中，存在相对较高水平的IgG、IgM和IgA，这与乳清中发现的免疫球蛋白类别相对应。这些观察结果表明，发育中的牛胎儿可能具有独立的免疫反应能力。
