This investigation was carried out in the Chual farm, located in the Caserío of the same name, District of Simbal, Province of Trujillo, La Libertad Region, with the objective of evaluating the effect of the addition of Cyperus rotundus "Coquito" in diets on the turkeys production parameters. For which 180 mixed turkeys of the Hybrid line distributed in three treatments under a completely random design were used. The treatments were: T0: 0,05 kg Zin-bacitracin / t of food, T1: 1 kg of Coquito flour / t of food, T2: 2 Kg of coquito flour / t of food. In the weekly weights parameter, the T0 was higher in all the weeks, but only significant statistical differences were calculated (P<0,05) in the second (0,91 kg) and ninth week (5,37 kg), and were calculated highly significant statistical differences (P <0,01) in the third week (0,91 kg). In the final weight parameter, the T0 had the highes...