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Dietary Clanis bilineata (soybean hawkmoth) larval meal improves broiler performance and immunity

in Journal of Insects as Food and Feed
Autor:innen:
Shengjun Wu Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Haizhou 222005, P.R. China
Co-Innovation Center of Jiangsu Marine Bio-industry Technology, 59 Cangwu Road, Haizhou 222005, P.R. China

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Wenjuan Gao Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology, Jiangsu Ocean University, 59 Cangwu Road, Haizhou 222005, P.R. China
Co-Innovation Center of Jiangsu Marine Bio-industry Technology, 59 Cangwu Road, Haizhou 222005, P.R. China

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Abstract

The effects of replacing soybean meal with Clanis bilineata (soybean hawkmoth) larval meal (CBLM) at 0%, 10%, 30%, and 50% on broiler chicken immunological responses, growth performance, and meat quality were investigated. Four food regimens were randomly assigned to 240 one-day-old male Ross 308 broiler chicks with six replicates per group and ten birds per pen. Dietary CBLM significantly boosts blood immunological markers, with greater IgG (6.8 g/l, p = 0.035), IgA (2.4 g/l, p < 0.05), and IgM (4.1 g/l, p = 0.038) levels in the 30% group compared to the control group (5.4, 1.8 and 3.2 g/l). The immunomodulatory effect was confirmed by a decrease in pro-inflammatory cytokines IL-6 and TNF-α in the 30% CBLM group compared to the control (62.3 vs 75.0 pg/ml, p = 0.027; 69.8 vs 82.1 pg/ml, p = 0.033), indicating an improved anti-inflammatory state rather than immunological over-activation. The 30% CBLM group had the highest body weight of 2035.6 g (vs 1865.4 g in control, p = 0.042), an average daily gain of 94.5 g/day (vs 87.5 g/day in control, p = 0.038), and a feed conversion ratio of 1.24 (vs 1.29 in control, p > 0.05). These data imply that moderate CBLM inclusion (at 30%) in broiler’s diets can improve immunity, development, and meat quality, providing a sustainable and functional protein supply.

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