Effect of different sodium bentonite levels on performance, carcass traits and passage rate of broilers
2012
Damiri, H. (Ramin (Khuzestan) Agricultural and Natural Resources Univ., Khuzestan (Iran). Dept. of Animal Science) | Chaji, M. (Ramin (Khuzestan) Agricultural and Natural Resources Univ., Khuzestan (Iran). Dept. of Animal Science) | Bojarpour, M. (Ramin (Khuzestan) Agricultural and Natural Resources Univ., Khuzestan (Iran). Dept. of Animal Science) | Mamuei, M.
The aim of this study was to investigate effects of different sodium bentonite (SB) levels on performance, carcass characteristics and passage rate of broilers. Two hundred eighty eight day-old Ross strain mix broilers were allocated to 6 experimental diets with 4 replications in a completely randomized design. Treatments levels of sodium bentonite were 0.00, 0.75, 1.50, 2.25, 3.00 and 3.75%. Broilers fed SB containing diets consumed more feeds (P less than 0.05) and showed better weight gain (P greater than 0.05) with no difference across treatments containing SB. The diet with 3.75% SB had the best FCR. Relative weight of liver decreased as percentage of SB increased in diet while control group had highest relative weight of breast (P less than 0.05). Supplementation of diets by SB increased retention time and decreased gastrointestinal passage rate. The use of SB in broiler diets had no adverse effects on performance; addition SB to broiler diets had beneficial effects on performance, carcass characteristics and passage rate and resulted in improved efficiency of production.
显示更多 [+] 显示较少 [-]