Journal of Insects as Food and Feed, cilt.9, sa.9, ss.1139-1149, 2023 (SCI-Expanded)
This study was conducted to determine the effects of Tenebrio molitor larvae inclusion in diets instead of soybean and fish oil on Japanese quail’s performance, carcass, and meat quality. A total of 180 7-day-old quails (Coturnix coturnix japonica) of both sexes were housed in battery packs in a controlled environment room. Chicks were randomly allocated to three treatment groups, each with 5 replicate pens of 12 chicks. The dietary treatments were as follows: (1) control (C) group (soybean meal-based diet); (2) fish oil supplemented diet (FO, 30 g/kg DM fish oil); and (3) T. molitor larvae diet (TML, 100 g/kg DM), respectively. No differences were found between daily weight gain and daily feed intake (P>0.05). The final body weight was higher in quail-fed TML and lower in quailfed FO (P<0.01). The feed conversion ratio was improved with the TML diet in quail (P<0.05). Carcass weight was higher in the TML group than in the FO group (P<0.05). No differences between treatment groups were found in liver, heart, and spleen percentages (P>0.05); however, the proventriculus percentage was higher in FO than in the TML group. The chemical characteristics of breast meat were unaffected by dietary treatments (P>0.05). The fatty acids (FA) were similar primarily in quail breast meat fed C and TML diets; however, polyunsaturated FA (PUFA) was lower in the TML diet compared to the C diet (P>0.05). In the FO groups C14:0, C20:4 n6 and n-3 fatty acids (C18:3, C20:3, C20:5, C22:6), saturated FA, PUFA, and n-3/n-6 were increased, monounsaturated FA, PUFA n-6, and n-6/n-3 were decreased compared to the C and TML groups (P<0.01).