Lomba F, Fumiere I, Tshibangu M, Chauvaux G, Bienfet V
Ann Rech Vet. 1978;9(2):353-60.
The serum immunoglobulin levels were studied in 215 calves born on 4 farms. Each farm had at least 60 cows. There was a great variation in the immunoglobulin levels at 48 hours. In those cases where the quantity and Ig concentration of colostrum was measured it was found that the serum Ig level was correlated with the total amount of Ig ingested. Where only the serum level was measured it was found that suckled calves had higher levels than bucket-fed calves. Immunoglobulin levels were not correlated with the incidence of diarrhoea or pneumonia nor with the viability of calves although calves with less than 8 mg/ml IgG1 showed a slightly higher incidence of diarrhoea. The globulin concentrations in colostrum were not influenced by the breed, the season, the number of calvings, the length of the dry period and the level of feeding during this period but the time of the first feeding or milking proved to be of prime importance.
对4个农场出生的215头犊牛的血清免疫球蛋白水平进行了研究。每个农场至少有60头母牛。48小时时免疫球蛋白水平存在很大差异。在测量初乳量和免疫球蛋白浓度的情况下，发现血清免疫球蛋白水平与摄入的免疫球蛋白总量相关。在仅测量血清水平的情况下，发现哺乳犊牛的水平高于奶瓶喂养的犊牛。免疫球蛋白水平与腹泻或肺炎的发生率以及犊牛的存活率无关，尽管IgG1低于8mg/ml的犊牛腹泻发生率略高。初乳中的球蛋白浓度不受品种、季节、产犊次数、干奶期长度和该期间饲养水平的影响，但首次喂食或挤奶时间被证明至关重要。
