The effect of Sauropus androgynus extract and lemuru oil on fat deposition and fatty acid composition of meat in broiler chickens

Abstract

The present study was conducted to evaluate the effect of Sauropus androgynus (katuk) leaves extract (SAE) and lemuru fish oil (LO) on fat deposition and fatty acid composition of meat in broiler chickens. One hundred and fifty six broiler chickens were distributed to 13 treatment groups with 3 cages in each treatment group as replicate. Completely randomized design was used in this study. The thirteen groups were subsequent of broiler chickens that were fed diet containing commercial feed supplement as a control (P1), 10 g/kg SAE and 1% LO (P2); 10 g/kg SAE and 1% LO plus 60 mg vitamin E (P3), 10 g/kg SAE and 2% LO (P4), 10 g/kg SAE and 2% LO plus 60 mg vitamin E (P5), 10 g/kg SAE and 3% LO (P6), 10 g/kg SAE and 3% LO plus 60 mg vitamin E (P7), 18 g/kg SAE and 1% LO (P8), 18 g/kg SAE and 1% LO plus 60 mg vitamin E (P9), 18 g/kg SAE and 2% LO (P10), were 18 g/kg SAE and 2% LO plus 60 mg vitamin E (P11), 18 g/kg SAE and 3% LO (P12), and 18 g/kg SAE and 3% LO plus 60 mg vitamin E (P13). The data were analyzed by analysis of variance and if it were significant, it were then determined by Duncan's Multiple Range test. The present results showed that supplementation of SAE and LO significantly affected (P<0.05) fat deposition in abdomen and leg, but it had no effect on neck fat deposition and Fatty Liver Score. Supplementation of SAE and LO had significantly reduced (P<0.05) cholesterol content and thiobarbituric acid (TBA) in leg meat, but it significantly increased (P<0.05) vitamin A and vitamin E and it had no effect on fat in leg meat. Supplementation of SAE and LO proved to change fatty acid composition in leg meat. The treatment highly significant increased ecosapentaenoic acid (EPA) and docosahexaenoic acid DHA (P<0.01), arachidonic acid and stearic acid (P<0.05), but it significantly reduced linolenic acid (P<0.05). In conclusion, the supplementation of SAE and LO reduced fat deposition in abdomen and leg, the content of cholesterol in meat, and it enriched EPA and DHA of meat.