Citation | Wafa WM, Hegazy MM, Ibrahim MS, El-Nagar HA, Ismail RF (2022). Performance, puberty, pregnancy, and hemato-bichemical parameters of friesian heifers orally administrated with protected fat or glycerol. J. Anim. Health Prod. 10(4): 454-465. DOI | http://dx.doi.org/10.17582/journal.jahp/2022/10.4.454.465