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General Information

Document type
  • Peer-reviewed journal article
GE organism
  • maize
GE trait
  • insect resistance
Country
  • USA

Results

Equivalence
  • no effect
Safety for consumption
  • no effect

Growth, pork quality, and excretion characteristics of pigs fed Bt corn or non-transgenic corn Open Access

Custodio, MG; Powers, WJ; Huff-Lonergan, E; Faust, MA; Stein, J
Canadian Journal of Animal Science. 2006 December. 86(4):461- 469

Link to full text (open access, freely available)

DOI: 10.4141/A05-082

Abstract

Two experiments (exp. 1 and exp. 2, respectively) were conducted to compare performance, pork quality, and excretion characteristics of pigs fed diets containing Bt 11 (Bt) or control corn (C: non-transgenic inbred lines for exp. 1, and a non-transgenic isoline for exp. 2). Experiment 1 involved barrows and gilts (total n = 64; initial BW = 64 kg and 60 kg), while in exp. 2, 120 barrows were used (initial BW = 17 kg). Pigs were allocated to pens, blocked by sex and BW. Isocaloric, isolysinic diets contained an indigestible marker in exp. 1. Feed disappearance and weight gain data, and excreta samples were collected weekly in exp. 1. Feed disappearance and weight gain data were collected weekly in exp. 2. No difference in ADG was observed, however, feed efficiency was greater for pigs fed the C diet. No corn effects were observed for hot carcass weight, loin eye area, or backfat depth. Hunter color ‘b’ values and values for chroma were significantly greater for pigs fed C diets (P = 0.02, < 0.01, respectively) in exp. 1. In contrast, Hunter color ‘b’ values were significantly lower for pigs fed C diets (P = 0.05) in exp. 2. No corn effects were observed for proximate analyses of meat samples, N or P content of fecal and urine samples, nor N digestibility. Pigs fed C diets had greater apparent P digestibility (57.8% vs. 40.2%; P < 0.0001). Key words: Bt corn, animal performance, excretion

Keywords

Bt corn; animal performance; excretion; Bt 11

Funding

Funding source
  • Syngenta
Funding country
  • Switzerland
Funding type
  • industry: same

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Cite this study

MLA

Custodio, MG, WJ Powers, E Huff-Lonergan, MA Faust, J Stein. "Growth, pork quality, and excretion characteristics of pigs fed Bt corn or non-transgenic corn ." Canadian Journal of Animal Science 86.4 (2006): 461- 469. Web. 19 Nov. 2017.

APA

Custodio, MG., Powers, WJ., Huff-Lonergan, E., Faust, MA., & Stein, J. (2006). Growth, pork quality, and excretion characteristics of pigs fed Bt corn or non-transgenic corn . Canadian Journal of Animal Science, 86(4), 461- 469. doi:10.4141/A05-082

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