@article{articlede0023cc,
title   = {Comparison of the in vitro efficiency of supplementary bee propolis extracts of different origin in enhancing the ruminal degradability of organic matter and mitigating the formation of methane},
author = {Morsy, Amr Salah and Soltan, Yosra Ahmed and Sallam, Sobhy Mohamed Abdallah and Kreuzer, Michael and Alencar, Severino Matias de and Abdalla, Adibe Luiz},
year = {2015},
doi = {10.1016/j.anifeedsci.2014.11.004},
journal   = {Animal Feed Science and Technology}
}