Genome-wide association analysis finds a link between placental efficiency and birth weight, suggesting genetic strategies for improving litter viability.
This study clarifies, from a genetic perspective, the causal relationship between PEA and BW. The proposed PEA index is presented as a reliable tool for evaluating placental spatial utilization efficiency in polytocous animal breeding. It offers new genetic insights and a potential approach for improving litter viability.
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Yu et al. (2026) studied this question.
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