Journal
REPRODUCTION IN DOMESTIC ANIMALS
Volume 52, Issue 1, Pages 140-152Publisher
WILEY
DOI: 10.1111/rda.12869
Keywords
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Funding
- CAPES-Brazil
- CNPq-Brazil
- FAPEMIG-Brazil
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Case report: A 6.5-year-old clinically healthy German Shepherd Dog with regular oestrous cycles of 6 months was presented for pregnancy diagnosis on day 38 after ovulation ( p. ov.). Ultrasonography revealed three individual placental sites in progressed resorption and two vital adequately developed foetuses sharing a joint placenta. On days 41 and 48 p. ov., sonographic signs indicated normal development of both foetuses, but on day 52 p. ov., both foetuses were found to be dead. A caesarean section was performed the same day. Examination of the removed uterus confirmed the diagnosis of a twin pregnancy with two foetuses sharing the same placental site but separate amniotic membranes. One foetus showed generalized oedema ( anasarca). Bacterial culture of swabs taken from inside the placental cavity was negative. At histological examination of the uterus, no signs of inflammation were found. Serum relaxin concentrations ( day 38, 41, 48 and 52. p. ov.) were consistent with those of bitches with normal pregnancies. Cytogenetic analysis of the two foetuses revealed dizygotic twins, one male and one female according to SRY-PCR. By genotyping 17 high-polymorphic canine microsatellites, it could be demonstrated that the two foetuses developed from two different oocytes.
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