Consequence of biotin as a nourish preservative on the development of Gallus gallus domesticus

The study of broilers were divided in four groups; A, B, C and D fed on ration supplemented at concentrations of 0.15, 0.20, 0.25 and 0.30 mg/kg of feed; whereas, biotin was used in groups B, C and D. Group A was considered as control without use of biotin. The feed consumption was 4285, 4530, 4671 and 4688 g/bird in all groups. The biotin was used as feed additive at the rates of 0.15, 0.20, 0.25 and 0.30 mg/kg feed, respectively. Water intake was 7615, 7742, 7895 and 8039 g/bird, weight gain was 2025.80, 2130.10, 2220.00 and 2350.40 g/bird, feed conversion ratio was 12.115, 2.127, 2.104 and 1.994, carcass weight was 1228.30, 1312.50, 1433.90 and 1512.80 g/bird, heart weight was 9.50, 9.80, 10.20 and 10.40 g, gizzard weight was 33.00, 34.00, 37.40 and 38.60 g and liver weight was 40.30, 42.10, 43.50 and 43.80 g in groups A, B, C and D. The red blood cells (RBC) was 2.31, 3.22, 3.66 and 4.06 (million/cm