Effects of black soldier fly larvae (Hermetia illucens) maggot meal supplementation on haematological, serum biochemical and lipid indices of broiler chickens fed with low-cost diets Effects of black soldier fly larvae (Hermetia illucens) maggot meal supplementation
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Abstract
This study evaluated the effects of dietary supplementation of black soldier fly larvae (BSFL) maggot meal on haematology, serum biochemistry and lipid parameters of broiler chickens, and assessed its potential to improve the nutritional quality of low-cost poultry diets. A total of 120 day-old broiler chicks were used in a five-week feeding trial. After three weeks of brooding, birds were randomly assigned to five dietary treatments (A–E) with three replicates per treatment and eight birds per replicate. Group A (positive control) received a high-cost commercial feed without maggot meal supplementation, while Group B (negative control) received a low-cost commercial feed without maggot meal inclusion. Groups C, D and E were fed low-cost commercial feed supplemented with 1%, 2% and 3% maggot meal respectively. Comparing between the two control groups revealed that although the low-cost diet maintained normal haematological values, it resulted in lower serum lipid and nitrogen metabolism indicators, suggesting reduced nutrient density. Dietary inclusion of maggot meal up to 3% produced no adverse effects on haematological indices. Also, liver enzyme activities, kidney function indicators and serum protein fractions remained within normal physiological ranges. Birds fed 1–2% maggot meal diets showed lower cholesterol, triglycerides, low density lipoprotein (LDL) and very low density lipoprotein (VLDL) concentrations, indicating improved lipid metabolism. The findings demonstrate that black soldier fly larvae maggot meal can be safely incorporated into broiler diets and may serve as a nutritional enhancer capable of improving the metabolic value of low-cost poultry feeds.
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