The effect of adding different levels of Rosemary powder with oil on changes in intestinal morphology, meat quality and some blood indices in Japanese quail

The experiment was designed to investigate the effect of adding rosemary powder (Rosmarinus officinalis) along with sesame and soybean oil on changes in intestinal morphology, meat quality and some blood indices in the Japanese quail. The experiment was performed in factorial based on completely randomized design with 6 treatments, 4 replications and 15 meat quail pieces in each repetition. Experimental treatments include: 1) Sesame oil + zero surface of rosemary 2) Sesame oil + 1 g/kg rosemary 3) Sesame oil + 2 g/kg rosemary 4) Soybean oil + zero level of rosemary 5) Soybean oil + level one of rosemary 6 ) Soybean oil + level two rosemary. On the final 35 day of the experiment, two quails (male and female) were selected from each pen that weighed close to the average weight of the population. Each quail was manually peeled and carcasses separately, and different parts of the body were weighed and internal organs were weighed. The results showed that head, thigh, pancreatic, heart, gingival and testicular relative weight were not significantly different in experimental treatments (P <0.05). But the effect of sesame oil was more than soybean oil (P<0.05). In blood indices, urea levels were significantly reduced with increasing rosemary powder levels (P<0.05).Meat pH did not differ between the experimental group. Beyond the TBA, there was a significant difference between the experimental treatments (p<0.05). TBA decreased with increasing amount of Rosemary powder. In cookingloss, there was no significant difference between the experimental treatments. In drippingloss, there was no significant difference between experimental treatments. As a result, the use of Rosemary powder and sesame oil in  diet can have positive and beneficial effects on quail.