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Table 1 Associations between the severity of hoof lesions and the dietary status of the sows

From: Effect of diet supplementation with chelated zinc, copper and manganese on hoof lesions of loose housed sows

Foot site Foot location Odds ratioa (After/Before) 95 % CI Toe location Odds ratioa (After/Before) 95 % CI
SL Front 0.28* 0.21, 0.38 NA - -
Rear 0.48* 0.37, 0.61 - -
HL Front 0.46* 0.37, 0.57 Medial 0.34* 0.27, 0.44
Rear 0.69* 0.55, 0.82 Lateral 0.46* 0.37, 0.57
WL Front 0.49* 0.35, 0.69 NA - -
Rear 0.78 0.57, 1.07 - -
WA Front 0.32* 0.25, 0.42 NA - -
Rear 0.50* 0.40, 0.66 - -
TL Front 0.26* 0.19, 0.35 Medial 0.36* 0.28, 0.51
Rear 0.88 0.70, 1.13 Lateral 0.26* 0.19, 0.35
DCL Front 0.57* 0.46, 0.70 NA - -
Rear 0.88 0.74, 1.07 - -
  1. SL sole, HL heel, WL white line, WA wall, TL toe length, DCL dew claw length
  2. Mixed-effect ordinal logistic regression models associating the severity of lesions (scaled from 0 to 2) on six foot sites of 518 sows, with a diet supplemented with organic trace minerals over a period of one or two gestations (After), following a conventional inorganic mineral source diet (Before), in terms of its interaction with the location of the foot (front or rear) or the location of the toe (lateral or medial)
  3. aOdds ratios were adjusted for foot location (front or rear), toe location (lateral or medial), sows’ parity and farm
  4. NA not applicable; the effect of the applied diet was not associated with toe location
  5. *P < 0.05