Partial Replacement of Soyabean Meal with Defatted Black Soldier Fly (<i>Hermetia illucens</i> L.) Larvae Meal Influences Blood Biochemistry and Modulate Oxidative Stress, but Not Growth Performance of Pigs
2025
Gergana Yordanova | Radka Dimitrova Nedeva | Apostol Petrov Apostolov | Stephen Charles Mansbridge | Isobel Margaret Whiting | Alexander Mackay Mackenzie | Galina Dimitrova Nikolova | Yanka Dimitrova Karamalakova | Vasil Radoslavov Pirgozliev
The production of soybean meal (SBM) can be linked to various issues related to the environment (e.g., deforestation, water waste, and transportation costs), and reducing its inclusion in pig diets by using alternative protein sources, such as insect meal, is an important challenge for nutritionists. This study aimed to compare the productive performance, dietary digestible energy (DE), nutrient digestibility, and some blood indices of growing Danube White pigs fed graded levels of Black Soldier fly (<i>Hermetia illucens</i> L.) larvae meal (BSFLM) at 0, 30, 60, 90, and 120 g/kg of diets, in replacement of SBM for 38 days, from 119 to 157 d old. Each diet was fed to eight pigs in individual boxes following randomization. Pigs grew according to breeders’ recommendations and did not have any clinical health problems. Replacing SBM did not change (<i>p</i> > 0.05) the pigs’ growth performance and DE, as only dietary fat digestibility increased in a linear fashion (<i>p</i> < 0.001), possibly due to the high BSFLM, i.e., the high-fat inclusion rate. There was a simultaneous rise in some oxidative damage indicators and an increase in antioxidant status, thus suggesting that further research involving longer feeding periods is needed to identify a potential time sequence of events. Overall, BSFLM is a promising ingredient in pig nutrition.
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