Relationship between backfat thickness of sows during late gestation and reproductive efficiency at different parities

Jin Soo Kim, Xiaojian Yang, Devi Pangeni, Samuel Kofi Baidoo

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    14 Scopus citations

    Abstract

    The present study investigated the impact of sow backfat (BF) thickness at d 109 of gestation (≤10, 11 to 12, 13 to 14, 15 to 16, 17 to 18, 19 to 20, 21 to 22, 23 to 24, 25 to 26 and ≥27 mm) at different parities (1, 2, 3, 4, 5, 6, 7 and ≥8) on sow and piglet performance based on records from 11,536 farrowings of 2875 sows. For each parity, an increase in sow BF thickness at d 109 of gestation was associated with (1) a linear decrease (P < 0.05) in sow daily feed intake, (2) a linear increase (P < 0.05) in losses of maternal BF thickness and body weight during the lactation period, and BF gain from weaning to d 109 of subsequent gestation, and (3) a concave down quadratic change (P < 0.05) in litter size and litter gain at weaning.

    Original languageEnglish (US)
    Pages (from-to)1-8
    Number of pages8
    JournalActa Agriculturae Scandinavica A: Animal Sciences
    Volume65
    Issue number1
    DOIs
    StatePublished - Jan 2 2015

    Keywords

    • Backfat thickness
    • reproductive performance
    • sow
    • suckling pigs

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