El-Katcha, Mohamed, Mosaad Soltan, Karima El-Naggar, Set El-Shobokshy, and Mohamed El-Erian. 2019. “LAYING PERFORMANCE, FAT DIGESTIBILITY AND LIVER CONDITION OF LAYING HENS SUPPLEMENTED WITH VITAMIN B12 OR BIOTIN AND/ OR BILE ACIDS IN DIET”. Slovenian Veterinary Research 56 (22-Suppl). https://doi.org/10.26873/SVR-773-2019.