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https://doi.org/10.5713/ab.22.0052    [Accepted] Published online May 7, 2022.
Black soldier fly (Hermetia illucens) larvae oil as an alternative fat ingredient to soybean oil in laying hen diets
Byeonghyeon Kim1, Minji Kim1, Jin Young Jeong1, Hye Ran Kim1, Sang Yun Ji1, Hyunjung Jung1, Seol Hwa Park1,*
Animal Nutrition & Physiology Division, National Institute of Animal Science, Rural Development Administration, Wanju-Gun, Korea
Correspondence:  Seol Hwa Park, Tel: +82-63-238-7453, Fax: +82-63-238-7497, Email: shwa6560@korea.kr
Received: 3 February 2022   • Revised: 11 March 2022   • Accepted: 6 May 2022
Abstract
Objective
The objective of this study was to determine whether dietary black soldier fly (Hermetia illucens, HI) larvae oil (HILO) could serve as an alternative fat source to soybean oil (SBO) in laying hen diets.
Methods
We randomly assigned 25-week-old Hy-line Brown laying hens (n = 144) to receive (n = 6 hens/group; eight replicates) a control or an experimental diet in which SBO was replaced with 50% (50HILO) or 100% HILO (100HILO).
Results
Dietary HILO did not negatively affect body weight or productive performance during the study. The eggs also had similar quality parameters, proximate composition, and cholesterol levels. However, the yolk color index was significantly higher (p < 0.01) in the 100HILO than in the other groups. Dietary HILO significantly altered the composition of fatty acids (FAs) in abdominal fat and eggs. Total saturated fatty acids (SFAs) and total polyunsaturated FAs (PUFAs) were significantly increased and decreased in the 50HILO and 100HILO groups, respectively, compared with those in the control group (p < 0.001 and p < 0.0001, respectively). Specifically, the medium-chain FAs lauric and myristic acids were remarkably increased in the abdominal fat of laying hens fed HILO (p < 0.0001), whereas only myristic acid increased in eggs (p < 0.0001). Undesirable heavy metal (aluminum, fluorine, arsenic, lead, mercury, and cadmium) concentrations were below permissible limits in eggs.

Conclusion

We considered that HILO could be an alternative dietary fat to SBO for laying hens with maintained productive performance and good egg quality..
Keywords: Hermetia illucens; Egg Quality; Egg Fatty Acid; Heavy Metal
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