%0 Journal Article %T The Effects of Fumaric Acid on The Development of Digestive System and Growth Performance in Broilers %A £¿mer Faruk KURBAL %J - %D 2018 %X This study has been carried out with a view to determine the usage activities of fumaric acid contribution of organic acids on fattened chickens rations. In the study as an animal material, one day-year old 160 Ross 308 male fattened chicks have been used. In the experiment, while the group which is fed with basic ration, which is not included fumaric acid contribution (% 0), has formed the control group, the groups which the fumaric acid contribute to rations with 1, 2 and 4 per cent levels have formed the treatment groups. Each group is divided into two sub-groups; the animals have been distributed to each sub-group by randomly twenty (20) chicks. It has been taken care of testing groups£¿ having similar live weight average. Forage and water have been given freely. The study period is 42 days. As of the end of testing, the live weight profit of the fumaric acid contribution, which is added rations at different levels, has not had an important effect on the proportion of benefiting from forage, skeleton parameters, abdominal fat proportion, plasma cholesterol, triglyceride LDL (low-density lipoprotein), plasma total protein level, heart weight, and the pH levels of adenoid (bezel) stomach. However, the difference, which has been observed between groups, has been considered something significant statistically when compared with average forage consumption that they have consumed during the testing of groups (P<0.05). The 2 per cent fumaric acid contribution has increased the forage consumption significantly in comparison with testing group, has decreased the jejenum pH level significantly as well. The weight of cecum has increased 2 and 4 per cent in the group that has fumaric contribution (P<0.0001). Consequently, in the nourishment of fattened chick, as a growth inducer by decreasing the jejenum pH of fumaric acid contribution, it has been determined that it tends to improving the utilization proportion of forage. Fumaric acid contribution also decreased the mortality %K Fumarik Asit %K broyler %K beslenme %K sindirim sistemi %K karkas rand£¿man£¿ %U http://dergipark.org.tr/yyufbed/issue/37084/346229