@inproceedings{inproceedingsa05434a3,
title   = {Effect of dietary vitamin a upon egg yolk retinol and tocopherol levels},
author = {Watanabe, C and Almeida, C. R. M and Mendonça Júnior, Cássio Xavier de and Mori, A. V},
year = {2000},
publisher = {World's Poultry Science Association},
booktitle   = {World's Poultry Congress}
}