Factors affecting longevity in maternal Duroc swine lines

  title={Factors affecting longevity in maternal Duroc swine lines},
  author={Joaquim Tarr{\'e}s and Joan Tibau and Jes{\'u}s Piedrafita and Emma F{\`a}brega and Josep Reixach},
A competing risks approach was used to evaluate the influence of several pre-farrowing factors on risk of culling due to different causes in Duroc swine, these having low fertility, low productivity, lameness and mortality. Culling due to low fertility increased for average daily gains during the growth test lower than 585 g/day, whereas culling due to low productivity and mortality increased with low levels of backfat thickness at the end of the growth test. Lesser loin depths at first… CONTINUE READING


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