Abbas, S., Abd El-Ati, M., El-Hommosi, F., Abd Allah, A. (2002). 'EFFECTS OF PHOTOPERIOD AND HOUSING SYSTEM ON GROWTH PERFORMANCE AND SOME ' BLOOD PARAMETERS DURING FATTENING PERIOD IN SHEEP', Assiut Veterinary Medical Journal, 47.2(94), pp. 139-156. doi: 10.21608/avmj.2002.180402