Australian Journal of Basic and Applied Sciences 2019 June; 13(6): pages 14-22 DOI: 10.22587/ajbas.2019.13.6.2 Original paper AENSI Publications Journal home page: www.ajbasweb.com Influence of organic or inorganic forms of salts rich in phosphorus, copper and zinc on reproduction, productivity and blood constituents in sheep Abd El-Hamid, I, S.; Younis, F. E.; Farrag, B.; El-Rayes, M. A-H and Shedeed, H, A. Animal and Poultry Production Division, Desert Research Center, Ministry of Agriculture and Land Reclamation, Egypt. Corresponding authors: Ibrahim Samir Abd El-Hamid, PhD Animal and Poultry Production Division, Desert Research Center, Ministry of Agriculture and Land Reclamation, Egypt. Email:
[email protected] Received date: 12 April 2019, Accepted date: 25 June 2019, Online date: 29 June 2019 Copyright: © 2019 Abd El-Hamid, I, S. et al., This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract Thirty- nine mature Aboudeleik ewes were fed the basal diet and divided into three groups. The first one was served as control (n=12), the second group received the basal diet plus salts in organic form (2.7 g/h/d DM, n=14) while the third one received (2.7 g/h/d DM, n=13) salts in inorganic form. The supplementation period began one month before mating and continued for waning period. Estrus was synchronized using duple injections of PGF2α prior to the introduction of rams.