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They were not directly involved in data extraction, processing, or statistical analyses, which were independently conducted by the other members of the research team. Milk production data were routinely collected as part of the farm\u2019s official milk-recording program and reported to the breed association, while feed-efficiency phenotypes were routinely recorded and transferred to the Ponta\n                      \u00ae\n                      system (formerly Intergado\n                      \u00ae\n                      , Contagem, Minas Gerais, Brazil) as part of the farm\u2019s regular data collection procedures. The remaining authors declare no conflicts of interest.","order":2,"name":"Ethics","label":"Conflict of interest","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"524"}}