Myers L L, Snodgrass D R
J Am Vet Med Assoc. 1982 Sep 1;181(5):486-8.
Colostral and milk whey rotavirus (RV) and coronavirus (CV) antibody titers stimulated in 15 beef heifers by vaccination with a modified live-RV-CV vaccine were compared with titers in 15 nonvaccinated heifers. Geometric mean antibody titers to RV in colostral and 3-day milk whey from vaccinated heifers were 2,807 and 92, respectively, and in control heifers were 1,613 and 71, respectively. Geometric mean antibody titers to CV in colostral and 3-day milk whey of vaccinated heifers were 877 and 13, respectively, compared with titers were 877 and 13, respectively, compared with titers in nonvaccinated heifers of 731 and 7, respectively. Differences in antibody titers between vaccinated and nonvaccinated heifers were not significantly different.
将15头肉用小母牛接种改良活轮状病毒-冠状病毒疫苗后初乳和乳清中的轮状病毒（RV）和冠状病毒（CV）抗体滴度，与15头未接种疫苗的小母牛的抗体滴度进行了比较。接种疫苗的小母牛初乳和3日龄乳清中针对RV的几何平均抗体滴度分别为2807和92，而对照小母牛分别为1613和71。接种疫苗的小母牛初乳和3日龄乳清中针对CV的几何平均抗体滴度分别为877和13，相比之下，未接种疫苗的小母牛的滴度分别为731和7。接种疫苗和未接种疫苗的小母牛之间的抗体滴度差异无显著差异。
