Anti-Neospora caninum IgG in fetal bovine serum

被引：0
|
作者：
Reginato, Caroline Zamperete [1 ]
Fernandes, Fagner D'ambroso [2 ]
Braunig, Patricia [3 ]
Sangioni, Luis Antonio [3 ]
Flores Vogel, Fernanda Silveira [3 ]
机构：
[1] Univ Fed Santa Maria, UFSM, Curso Doutorado Programa Posgrad Med Vet, Santa Maria, RS, Brazil
[2] Univ Fed Santa Maria, Curso Grad Med Vet, Santa Maria, RS, Brazil
[3] Univ Fed Santa Maria, Santa Maria, RS, Brazil
来源：
SEMINA-CIENCIAS AGRARIAS | 2020年 / 41卷 / 05期
关键词：
Serum; Abortion; Transplacental transmission; SEROLOGICAL DIAGNOSIS; CATTLE;
D O I：
10.5433/1679-0359.2020v41n5p1809
中图分类号：
S [农业科学];
学科分类号：
09 ;
摘要：
Neospora caninum is an obligate intracellular protozoan, recognized as an important cause of abortion in infection cattle worldwide, and is responsible for major economic losses in beef and daily herds. There arc scarce data on the presence of antibodies in fetal scrum samples from beef cattle. The pathogen is straggling mainly by vertical transmission in ruminants. This study aimed to determine the frequency of anti-N. caninum antibodies in fetal bovine serum. Overall, 751 fetal serum samples from slaughterhouses in Uruguaiana and Santo Angelo (Rio Grande do Sul state) were used. Serologic diagnosis was made using indirect immunolluorescence assay (IFA). Slides were prepared by culturing infected Vero cells using tachyzoites of the N. caninum NC-1 strain and a serum dilution of 1:25. Of the 751 samples analyzed, 11.7% (88/751) were positive in the IFA assay. The results indicate an occurrence of neosporosis in the studied region. as well as the possibility of transplacental transmission of the protozoon, characterizing an important mechanism of propagation for the disease.
引用
收藏
页码：1809 / 1812
页数：4
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