PSXV-18 Effects of Drying Methods for Black Soldier fly Larva Meals on in Vitro Nutrient Disappearance

Abstract The objective was to determine the effects of different drying methods on nutrient utilization black soldier fly (BSF; Hermetia illucens) larva meals using in vitro assays. Two-step and 3-step assays were employed simulate gastrointestinal tract pigs. Four used obtain BSF meal sources: 1) microwave-drying for 32 min, 2) hot-air at 60°C 17 h, 3) water blanching 5 min 4) 2% citric acid solution h. After process, each defatted ground meals. crude protein (CP) concentration test ingredients ranged from 54.7 60.4% dry matter (DM) basis ether extract 7.1 11.8% DM. Hot-air-dried had greater ileal disappearance (IVID) CP compared with microwave-dried (86.7% vs. 84.4%; P < 0.05). However, or before resulted less IVID (81.3 82.5%; 0.05) hot-air-dried meal. Blanching total DM (85.0% 84.5% 90.4% 89.6%; SEM = 0.3, OM (80.6% 81.5% 85.7% 86.6%; 0.1, In conclusion, negatively affected digestibility based