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Article History

Received: 15 October 2024

Accepted: 19 February 2025

First Online: 5 March 2025

Declarations

:

: This study was carried out in accordance with the guidelines for Institutional Animal Care and Use Committee of Seoul National University (IACUC # SNU-180403–1-2). Additionally, approval for the animal experiments was obtained from the Institutional Animal Care and Use Committee (IACUC #106) of the Gyeongsangbuk-do Livestock Research Institute, and all relevant national laws and policies regarding animal care and use were followed throughout. All procedures, including embryo transfer for animal production, animal care and rearing, genotyping through tissue sampling, blood collection, and sperm collection, were conducted with approval from the IACUC #106. The heifers were housed in a stanchion barn with adequate space and were fed according to the Korean feeding standard program. Rice straw, mineral blocks, and water were provided without restriction. All animal procedures, including blood collection and embryo transfer, were performed by a veterinarian.

: Not applicable.

: The authors declare no competing interests.