Mohamed E Abd El-Hack, Khalid Mahrose, Ali A Askar, Mahmoud Alagawany, Muhammad Arif, Muhammad Saeed, Farzana Abbasi, Rab Nawaz Soomro, Farman Ali Siyal, Maria Tabassum Chaudhry
A study was conducted using 162 Bovans laying hens to investigate the impacts of extra dietary vitamin A (0, 8000, 16,000 IU/kg), selenium (0, 0.25, 0.50 mg/kg), and their combinations on the performance, egg quality, and blood biological parameters of laying hens during summer months. Supplemental vitamin A up to 16,000 IU/kg diet significantly (P < 0.05) improved all productive traits studied except feed intake which increased with 8000 IU/kg diet compared with control. Feed intake and feed conversion of hens fed diet supplemented with selenium revealed high statistical (P = 0...
May 2017: Biological Trace Element Research