From the laboratory to the field: how to mitigate pregnancy losses in embryo transfer programs?

Autor:	Seneda MM; Universidade Estadual de Londrina, Laboratório de Reprodução Animal, Londrina, PR, Brasil.; Instituto Nacional de Ciência e Tecnologia do Leite - INCT Leite, Londrina, PR, Brasil., Costa CB; Universidade Estadual de Londrina, Laboratório de Reprodução Animal, Londrina, PR, Brasil., Zangirolamo AF; Universidade Estadual de Londrina, Laboratório de Reprodução Animal, Londrina, PR, Brasil., Dos Anjos MM; Universidade Estadual de Londrina, Laboratório de Reprodução Animal, Londrina, PR, Brasil., de Paula GR; Universidade Estadual de Londrina, Laboratório de Reprodução Animal, Londrina, PR, Brasil., Morotti F; Universidade Estadual de Londrina, Laboratório de Reprodução Animal, Londrina, PR, Brasil.
Jazyk:	angličtina
Zdroj:	Animal reproduction [Anim Reprod] 2024 Aug 12; Vol. 21 (3), pp. e20240032. Date of Electronic Publication: 2024 Aug 12 (Print Publication: 2024).
DOI:	10.1590/1984-3143-AR2024-0032
Abstrakt:	Pregnancy losses negatively affect the cattle industry, impacting economic indices and consequently the entire production chain. Early embryonic failure has been an important challenge in the embryo industry because proper identification of embryo death at the beginning of gestation is difficult. This review aimed to provide a better understanding on reproductive failure and the relationship between early embryonic loss and different reproductive biotechniques. This review also considers insights and possible strategies for reducing early embryonic loss. The strategies addressed are as follows: i) great impact of rigorous embryo evaluation on reducing embryo losses; ii) selection of recipients at the time of transfer, taking into account health and nutritional status, and classification of the corpus luteum using ultrasound, either in area or vascularization; and iii) paternal effect as one of the factors that contribute to pregnancy losses, with a focus on embryo transfer. Competing Interests: Conflicts of interest: The authors have no conflict of interest to declare. (Copyright © The Author(s).)
Databáze:	MEDLINE
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