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Negative / Null Result ReportOpen accessReproduction

Artificial lactation by exogenous hormone treatment in non-pregnant sows

Michiko NOGUCHI, Takehito SUZUKI, Reiichiro SATO et al. · 2020 · The Journal of Reproduction and Development

This study aimed to determine if lactation can be induced by exogenous hormonal treatment in non-pregnant sows. In experiment 1, pseudopregnant animals were divided into four groups and given: 1) 5 mg of estradiol dipropionate (EDP) 5 days before (n = 4), 2) 5 mg of EDP 10 days before (n = 3), 3) 10 mg of EDP 5 days before (n = 3) or 4) 10 mg of EDP 10 days (n = 3) before PGF2α treatment. Artificial lactation was induced in seven pseudopregnant sows (53.8%) by exogenous hormonal treatment. There was no significant effect of either an increased EDP dosage or interval from the EDP treatment to P

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