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The Uterus as an Influencing Factor for Late Embryo/Early Fetal Loss—A Clinical Update

Authors :
Zoltán Szelényi
Levente Kovács
Ottó Szenci
Fernando Lopez-Gatius
Source :
Animals, Vol 12, Iss 15, p 1873 (2022)
Publication Year :
2022
Publisher :
MDPI AG, 2022.

Abstract

Here we revise circumstances of non-infectious causes in which the uterus may be associated with pregnancy loss during the late embryo/early fetal period (following a positive pregnancy diagnosis in lactating dairy cows). As the uterine size increases with parity and pregnant heifers with no detrimental effects of a previous parturition, a primigravid uterus is proposed as a reference for identifying risk factors that negatively influence pregnancy in lactating cows. Cows suffering placenta retention or with a large uterus at insemination were selected as topics for this revision. Retained placenta, that occurs around parturition, has a long-lasting influence on subsequent pregnancy loss. Although retained placenta is a particularly predisposing factor for uterine infection, farm conditions along with cow factors of non-infectious cause and their interactions have been identified as main factors favoring this disorder. A large uterus (cervix and uterine horns lying outside the pelvic cavity) with no detectable abnormalities has been associated with low fertility and with a greater incidence of pregnancy loss. A large reproductive tract may well derive from an inadequate uterine involution. Therefore, peripartum management and strategies to reduce the incidence of uterine disorders should reduce their associated financial losses in the herds.

Details

Language :
English
ISSN :
20762615
Volume :
12
Issue :
15
Database :
Directory of Open Access Journals
Journal :
Animals
Publication Type :
Academic Journal
Accession number :
edsdoj.293d7f07441a4b7a9de8aff31763ad1d
Document Type :
article
Full Text :
https://doi.org/10.3390/ani12151873