Anti-Sarcocystis Antibodies in Lambs Deprived of Colostrum.

Abstract:

INTRODUCTION:The objective of this study was to evaluate the presence of anti-Sarcocystis spp. specific IgG antibodies in serum samples from precolostral lambs to determine the occurrence of transplacental transmission of Sarcocystis spp. in sheep. METHODS:Blood samples were collected from 80 ewes and their respective lambs, immediately after lambing and before colostrum ingestion, respectively. The presence of anti-Sarcocystis spp. IgG was evaluated in serum samples using the indirect fluorescent antibody test (IFAT). Positive samples of the lambs were submitted to titration and IFAT to detect anti-T. gondii and anti-N. caninum specific IgG. RESULTS:Anti-Sarcocystis spp. IgG was detected in 62.5% of the ewes (50/80) and in 4% of the lambs of the seropositive ewes (2/50). None of the lambs from seronegative ewes were positive. The final titers of the positive lambs were 80. No cross reaction was detected among the positive samples to anti-Sarcocystis spp., anti-N. caninum, and anti-T. gondii IgG. The detection of anti-Sarcocystis spp. antibodies in serum samples of lambs deprived of colostrum suggests transplacental transmission of infection. Thus, the vertical transmission may be an alternative route of infection of Sarcocystis spp. also in sheep. Further studies are warranted to confirm transplacental transmission in sheep and to explain the importance of this infection pathway.

journal_name

Acta Parasitol

journal_title

Acta parasitologica

authors

Minuzzi CE,de Souza Rodrigues F,Marques CB,Gallina T,Dos Santos TC,Portella LP,Bräunig P,Döhler AR,Sangioni LA,Vogel FSF

doi

10.2478/s11686-019-00114-z

subject

Has Abstract

pub_date

2020-03-01 00:00:00

pages

256-258

issue

1

eissn

1230-2821

issn

1896-1851

pii

10.2478/s11686-019-00114-z

journal_volume

65

pub_type

杂志文章