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Publications (1)1.58 Total impact

  • M Y C Thaker · G Bilkei
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    ABSTRACT: In order to examine the effect of different lactation weight losses of sows of different parity on subsequent reproductive performance, the present trial was performed in German (n = 4) and Slowakian (n = 11) indoor pig breeding units (n = 1677 sows evaluated). Weaning-to-service-intervals, farrowing rates and total-born litter sizes in sows with different lactation weight losses were compared. Sows were categorized according to lactation weight losses of <5%, 5-10%, 11-15%, 16-20%, >20%. Lactation weight losses exerted a quadratic effect (P < 0.01) on weaning-to-service-intervals. When analyzed across parity categories, with parity category included as a fixed effect, the weaning-to-service-intervals appeared to be minimized at lactation weight losses of <5%. Weaning-to-service-intervals increased (P < 0.05) when lactation weight losses increased above 5% for parity 1 sows, but not until lactation weight losses exceeded 10% for animals of parity 2 and more. There was a parity effect observed at lactation weight losses of <10%, P < 0.05, but the difference was not significant any more at lactation weight losses of >10%. Lactation weight losses >10% had a negative (P < 0.05) effect on subsequent farrowing rates to first service. The difference was higher (P < 0.01) in sows with lactation weight losses >20%. Lactation weight losses exerted a negative (P < 0.001) effect on total-born litter sizes in parity 1 versus parity >5 and parity 1 versus parity 2-5 sows at lactation weight losses of >10%. CONCLUSION: As weight loss of sows during lactation increases subsequent reproduction performance decreases.
    Animal Reproduction Science 09/2005; 88(3-4):309-18. DOI:10.1016/j.anireprosci.2004.10.001 · 1.58 Impact Factor

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44 Citations
1.58 Total Impact Points

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