Occurrence of ultrasonographic assessed placental abnormalities, treatments, pregnancy outcome, and subsequent fertility on a large warmblood stud farm: A retrospective field study.

Autor: Sielhorst J; Clinic for Horses - Unit for Reproductive Medicine, University of Veterinary Medicine Hannover, Foundation, Buenteweg 15, Hanover 30559, Germany; ReproTraining, Rolandstrasse 62, Verl 33415, Germany. Electronic address: jutta.sielhorst@reprotraining.de., Koether K; Clinic for Horses - Unit for Reproductive Medicine, University of Veterinary Medicine Hannover, Foundation, Buenteweg 15, Hanover 30559, Germany; Lewitz Stud, Lewitzhof, Neustadt-Glewe 19306, Germany., Volkmann N; Institute for Animal Hygiene, Animal Welfare and Farm Animal Behavior, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, Hanover 30173, Germany., Blanco M; Lewitz Stud, Lewitzhof, Neustadt-Glewe 19306, Germany., Vicioso R; Lewitz Stud, Lewitzhof, Neustadt-Glewe 19306, Germany., Baade S; Clinic for Horses - Unit for Reproductive Medicine, University of Veterinary Medicine Hannover, Foundation, Buenteweg 15, Hanover 30559, Germany., Kemper N; Institute for Animal Hygiene, Animal Welfare and Farm Animal Behavior, University of Veterinary Medicine Hannover, Foundation, Bischofsholer Damm 15, Hanover 30173, Germany., de Mestre AM; Cornell Baker Institute for Animal Health, Cornell Department of Biomedical Sciences, Equine Pregnancy Laboratory, 235 Hungerford Hill Road, Ithaca, New York 14853, United States., Sieme H; Clinic for Horses - Unit for Reproductive Medicine, University of Veterinary Medicine Hannover, Foundation, Buenteweg 15, Hanover 30559, Germany.
Jazyk: angličtina
Zdroj: Journal of equine veterinary science [J Equine Vet Sci] 2024 May 01; Vol. 137, pp. 105076. Date of Electronic Publication: 2024 May 01.
DOI: 10.1016/j.jevs.2024.105076
Abstrakt: Little is known about the incidence and outcome of high-risk pregnancies in equine practice and clinical studies on spontaneous occurring placentitis cases and treatments are missing. Therefore, the aims of this retrospective field study were to (1) describe the incidence and severity of ultrasonographic assessed placental abnormalities (UPA) in 4,192 pregnancies on a large commercial warmblood stud farm in 2017 - 2019 and (2) characterize these UPA cases and their pregnancy outcome. UPA severity (Placental abnormality score (PSc) 1-3; low to high), nine treatment regimens (TM1-9) used in UPA cases and treatment duration as well as subsequent fertility were analyzed in the group of UPA mares. The proportion of pregnancies affected by UPA was 4.2 % (n=177/4192). Placental abnormality severity was scored as PSc1 (51.4 %), PSc2 (32.8 %) and PSc3 (15.8 %). The generalized mixed model revealed PSc was affected by mare age and mare status (own pregnancy (OP) or embryo transfer recipient (ER)) (P=0.035) with ER mares having increased PSc compared with mares having their own pregnancy. Abortion occurred in 17/177 (9.6 %) UPA pregnancies. Overall, at the end of the next season, 61.1 % of UPA mares were pregnant, 32.0 % barren, and 6.9 % open (n=175). Pregnancy was established in 62/91(68.1 %) of mares with PSc1, 31/58 (53.4 %) with PSc2 and 14/26 (53.8 %) with PSc3. Most pregnancies were achieved in the first 81/107 (75.7 %) or second 18/107 (16.8 %) inseminated cycle. In conclusion, early detection and treatment of ultrasonographic assessed placental abnormalities can save high-risk pregnancies in > 90 % of cases with a satisfying subsequent fertility.
Competing Interests: Declaration of competing interest None of the authors has any financial or personal relationships that could inappropriately influence or bias the content of the paper.
(Copyright © 2024. Published by Elsevier Inc.)
Databáze: MEDLINE
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