Effect of dietary graded levels of Imbrasia belina on the chemical composition and fatty acid profile of meat from broiler chickens

Abstract

The effect of dietary graded inclusion levels of Imbrasia belina worm meal on meat chemical composition and fatty acid profile of broiler chicken meat was evaluated. A total of 360 chicks were randomly allocated to four dietary treatments, with each treatment group replicated 6 times (n = 15/replicate). The inclusion levels of the I. belina worm meal in the treatments were 0% control = T1, T2 = 4%, T3 = 8% and 12%. A three-phase feeding program of starter (0-14d), grower (15-28d), and finisher (29-35d) was employed for the study. The results showed that crude protein content of breast meat was higher (P < 0.05) in dietary treatments than control, whereas crude fat content of thigh meat was higher (P < 0.05) than in breast meat. The fatty acid composition of breast meat myristic and myristoleic acid levels were significantly reduced (P < 0.05) in treatment groups than the control, whereas the levels of linoleic acid, ⅀PUFA, ⅀PUFA/SFA, ⅀PUFA: MUFA, ⅀(n-6) in thigh meat decreased significantly (P < 0.05) in treatment groups than control. The ⅀(n-3) and atherogenic index in the thigh meat increased significantly (P < 0.05) with incremental levels of I. belina meal. In conclusion, I. belina meal improved the protein content of breast meat and reduced levels of some fatty acids.