Effect of different levels of sumac powder (Rhus coriaria L.) and probiotic protexin on performance, carcass characteristics and length of intestines of Japanese quail (Coturnix japonica) in growth period

This experiment was carried out to determine the effect of different levels of sumac powder (Rhus coriaria L. ) and probiotics protexin on performance, carcass traits and the small intestines, large and cecum quail from age 7 to 42 days of 120 Japanese quails (Coturnix japonica) in a 4 × 2 factorial experiment with two levels of probiotics (0 and .012 %) and four levels of sumac (0, 0.05, 0.10 and 0.15 percent) in a completely randomized design with eight treatments, three replicates per treatment and five quails (both sexes) in each replicate. Feed intake and body weight were measured weekly. At the end of experiment from each replicate, 4 quails (2 male and 2 female) were randomly selected and slaughtered. Protexin probiotic intake (0.120 %) at different ages (7 to 42 days) quails were not significantly different, in case different levels of sumac from age 14 to 42 days were significant difference among treatments. So, that at 14 days and 42 days of ages control treatment was superior to the other treatments (P