Investigations on genetically modified maize (Bt-maize) in pig nutrition: fattening performance and slaughtering results

Arch Tierernahr. 2002 Oct;56(5):319-26. doi: 10.1080/00039420215628.


A grower finisher performance trial with forty-eight pigs was designed to compare the growth performance of pigs fed diets containing either genetically modified (GM) Bt-maize (NX6262) or its parental maize (Prelude) line. During the experiment, the pigs were fed with a grower and a finisher diet both containing 70% maize investigated in a previously study which showed that they contained similar ME values and digestibility of crude nutrients. The pigs with an initial live weight of 23.9 +/- 3.0 kg were allotted to single boxes. During a 91 days growing period the pigs of both groups recorded equal performance in daily weight gain (AW) 815 +/- 93 vs. 804 +/- 64 g/d depending on equal amounts of feed intake 1.95 +/- 0.15 vs. 1.94 +/- 0.15 kg/d (parental vs. transgenic). The results confirm equal performance among growing-finishing pigs fed parental or genetically modified maize containing diets. For slaughtering the pigs were divided into 4 groups with a different duration of the finishing period. After slaughtering the carcass characteristic were registered.

MeSH terms

  • Animal Feed / analysis
  • Animal Nutritional Physiological Phenomena*
  • Animals
  • Body Composition
  • Digestion
  • Eating
  • Energy Metabolism
  • Female
  • Housing, Animal
  • Meat / standards*
  • Plants, Genetically Modified / genetics*
  • Random Allocation
  • Swine / growth & development*
  • Weight Gain
  • Zea mays / genetics*