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Table 2 Effects of weaning age on growth performance of nursery pigs fed diets with increasing levels of whey permeate at 7 to 11 kg BW

From: Impacts of weaning age on dietary needs of whey permeate for pigs at 7 to 11 kg body weight

Weaning age 21 da 25 db   P value
Whey permeatec, % 7.50 11.25 15.00 18.75 7.50 11.25 15.00 18.75 SEM Age Linear Log-Linear Age x Linear
BW, kg
 d 0 7.4 7.4 7.4 7.4 7.1 7.1 7.1 7.1 0.3 0.189 0.989 0.990 0.994
 d 10 11.1 11.2 11.3 11.6 10.4 10.5 10.7 10.7 0.4 0.020 0.320 0.329 0.852
 ADG, g/d 371 379 394 422 328 342 357 360 15 < 0.001 0.005 0.014 0.567
 ADFI, g/d 508 513 515 531 404 415 421 426 16 < 0.001 0.174 0.401 0.994
 G:F 0.73 0.74 0.76 0.80 0.81 0.83 0.85 0.85 0.02 < 0.001 0.002 0.014 0.352
 Mortality, % 0.0 0.5 0.0 0.5 0.0 1.0 0.5 0.5 0.5 0.425 0.535 0.574 0.999
 Fecal scorec 3.31 3.56 3.66 3.23 3.60 3.39 3.27 3.32 0.2 0.770 0.446 0.763 0.576
  1. aPigs were weaned at 21.2 ± 1.3 d of age and fed a common diet for 11 d until pigs reach 7 kg BW
  2. bPigs were weaned at 24.6 ± 1.1 d of age and fed a common diet for 2 d until pigs reach 7 kg BW
  3. cDietary treatments were supplemental levels of whey permeate in the diets (Agri-Mark, Inc., Middlebury, Vermont, USA)