كليدواژه :
جوجه هاي گوشتي , نمك كلسيمي , عملكرد , لاشه , سويا , اسيدهاي چرب
چكيده لاتين :
This study carried out to investigate the effects of soybean fatty acids and soybean calcium salt fatty acids on broiler chicken performance, carcass yield, pancreas and abdominal fat percentage. A total of 500 commercial crossbred of Ross was examined in 5 treatments and arranged on a completely randomized design (CRD) with 4 replicates per each treatment. Twenty five chicks were placed in each pen. The experiment lasted for 49 days. Neither soybean fatty acids nor soybean calcium salt fatty acids were used during the experiment in the first treatment. In the second treatment, for starter, grower and finisher period 0, 2.5 and 5 percents of soybean fatty acids were included respectively. During the third treatment 0, 2.5 and 5 percents of calcium salt fatty acids were used respectively, but in the fourth treatment 2.5, 5 and 5 percents of soybean fatty acids were used respectively, and in fifth treatment within the same period, 2.5, 5 and 5 percents of calcium salt fatty acids were used respectively. The results of the statistical analysis showed that there were significant differences in feed intake, weight gain and feed conversion ratio during the whole rearing periods (P<0.05).The results also showed significant differences among all treatments for carcass yield as well as pancreas percentage (P<0.05), and the use of soybean fatty acids and soybean calcium salt fatty acids had no significant effects on abdominal fat. It can be concluded from the results that the use of soybean fatty acids has precedence over calcium salt fatty acids on broiler performance.
