Choudar, Nedjma; Mekroud, A.
 (Université Frères Mentouri - Constantine 1, 2019-04-07)
Two groups of  200  broilers,  strain  ISA15,  have  been raised  in  the  same  building  with  the  same ambient  conditions,  lighting,  and  feeding,  during  two  periods,  the  first,  in  spring  time  (April- May). ...