There are currently 402 studies in the GENERA database.

Advanced Search

General Information

Document type
  • Peer-reviewed journal article
Study Type
  • feeding study
GE organism
  • maize
GE trait
  • quality
Country
  • China

Results

Safety for consumption
  • no effect

Detection of transgenic and endogenous plant DNA fragments and proteins in the digesta, blood, tissues, and eggs of laying hens fed with phytase transgenic corn Open Access

Ma, Q; Gao, C; Zhang, J; Zhao, L; Hao, W; Ji, C
PLOS ONE. 2013 April. 8(4):e61138

Link to full text (open access, freely available)

PMID: 23577200 DOI: 10.1371/journal.pone.0061138

Abstract

The trials were conducted to assess the effects of long-term feeding with phytase transgenic corn (PTC) to hens on laying performance and egg quality, and investigate the fate of transgenic DNA and protein in digesta, blood, tissues, and eggs. Fifty-week old laying hens (nā€Š=ā€Š144) were fed with a diet containing 62.4% PTC or non-transgenic isogenic control corn (CC) for 16 weeks. We observed that feeding PTC to laying hens had no adverse effect on laying performance or egg quality (P>0.05) except on yolk color (P<0.05). Transgenic phyA2 gene and protein were rapidly degraded in the digestive tract and were not detected in blood, heart, liver, spleen, kidney, breast muscle, and eggs of laying hens fed with diet containing PTC. It was concluded that performance of hens fed diets containing PTC, as measured by egg production and egg quality, was similar to that of hens fed diets formulated with CC. There was no evidence of phyA2 gene or protein translocation to the blood, tissues, and eggs of laying hens.

Keywords

phytase, corn, maize, egg, hen, feeding trial

Funding

Funding source
  • Genetically Modified Organisms Evaluation Major Projects
  • Yangtze River Scholar and Innovation Research Team Development Program
  • China Agriculture Research System
  • China Agriculture Research System-Beijing Team for Poultry Industry
Funding country
  • China
Funding type
  • government
  • NGO: independent

Links to outside analysis of this resource

Please contact us if you know of an independent summary or analysis of this resource.

Cite this study

MLA

Ma, Q, C Gao, J Zhang, L Zhao, W Hao, C Ji. "Detection of transgenic and endogenous plant DNA fragments and proteins in the digesta, blood, tissues, and eggs of laying hens fed with phytase transgenic corn." PLOS ONE 8.4 (2013): e61138. Web. 13 Dec. 2018.

APA

Ma, Q., Gao, C., Zhang, J., Zhao, L., Hao, W., & Ji, C. (2013). Detection of transgenic and endogenous plant DNA fragments and proteins in the digesta, blood, tissues, and eggs of laying hens fed with phytase transgenic corn. PLOS ONE, 8(4), e61138. doi:10.1371/journal.pone.0061138

Please verify citations before use, citations are automatically generated based on information stored within the GENERA database and therefore may or may not be correct.