Du Plessis J L
Onderstepoort J Vet Res. 1984 Dec;51(4):275-6.
Antibodies to Cowdria ruminantium were detected in the serum of calves born from artificially immunized heifers, by means of the indirect fluorescent antibody test, only for as long as 4 weeks after birth. Lambs born from artificially immunized ewes, however, were still serologically positive at 8-12 weeks of age. Much higher antibody titres were recorded in the sera of ewes and their lambs than in that of heifers and their calves.
通过间接荧光抗体试验，在人工免疫的小母牛所生犊牛的血清中，仅在出生后4周内检测到反刍兽考德里氏体抗体。然而，人工免疫的母羊所生羔羊在8至12周龄时血清学仍呈阳性。母羊及其羔羊血清中的抗体滴度远高于小母牛及其犊牛血清中的抗体滴度。
