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Xin Y, Xu M, Chen L, Wang G, Lu W, Liu Z, Shang R, Li Y, Wang Z, Sun H, Li L. Effects of Different Defatting Methods of Black Soldier Fly ( Hermetia illucens) Larvae Meal on the Metabolic Energy and Nutrient Digestibility in Young Laying Hens. Animals (Basel) 2024; 14:2521. [PMID: 39272305 PMCID: PMC11394067 DOI: 10.3390/ani14172521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2024] [Revised: 08/27/2024] [Accepted: 08/28/2024] [Indexed: 09/15/2024] Open
Abstract
This study aimed to investigate the effects of different defatting methods of black soldier fly (Hermetia illucens) larvae meal (BSFM) on the metabolic energy and nutrient digestibility in laying hens. Sixty young laying hens (Hy-Line W-36) aged 63 days were randomly divided into two groups (G1 and G2), each with five replicates of six hens housed in individual cages. Group G1 was fed 25% pressed black soldier fly meal (BSFMp) and 75% basal diet, and Group G2 was fed 25% extracted black soldier fly meal (BSFMe) and a 75% basal diet. Both diets included 5 g/kg chromium oxide as an external marker. A 7-day preliminary trial was followed by a 4-day experimental period. The results indicate that pressing and extracting significantly affected the digestibility of crude fat and total energy in BSFM, with BSFMp showing significantly higher crude fat digestibility than BSFMe. Similarly, total energy digestibility was also significantly higher in BSFMp. However, there were no significant differences in dry matter, organic matter, and crude protein digestibility between the two processing methods. The apparent metabolic energy values of BSFMp and BSFMe were 16.34 and 12.41 MJ/kg, respectively, showing a significant difference. The nitrogen-corrected metabolic energy values were 15.89 MJ/kg in BSFMp and 11.93 MJ/kg in BSFMe, indicating a highly significant difference. The digestibility of arginine and leucine in BSFMp was significantly higher than in BSFMe, while differences in lysine, cystine, threonine, tryptophan, and isoleucine were not significant. In conclusion, both defatting methods of BSFM had no adverse effects on the metabolic energy and nutrient digestibility in young laying hens, but BSFMp demonstrated better effects on the digestibility of metabolic energy and nutrients in the feed for young laying hens.
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Affiliation(s)
- Yizhen Xin
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
- Shandong Province Engineering Research Center of Black Soldier Fly Breeding and Organic Waste Conversion, Liaocheng University, Liaocheng 252000, China
| | - Meng Xu
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
- Shandong Province Engineering Research Center of Black Soldier Fly Breeding and Organic Waste Conversion, Liaocheng University, Liaocheng 252000, China
| | - Lifei Chen
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
- Shandong Province Engineering Research Center of Black Soldier Fly Breeding and Organic Waste Conversion, Liaocheng University, Liaocheng 252000, China
| | - Guiying Wang
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
- Shandong Province Engineering Research Center of Black Soldier Fly Breeding and Organic Waste Conversion, Liaocheng University, Liaocheng 252000, China
| | - Wenjing Lu
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Ziqi Liu
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Rongsheng Shang
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
- Shandong Province Engineering Research Center of Black Soldier Fly Breeding and Organic Waste Conversion, Liaocheng University, Liaocheng 252000, China
| | - Yifan Li
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Zhuoya Wang
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Haoyang Sun
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Lusheng Li
- School of Agricultural Science and Engineering, Liaocheng University, Liaocheng 252000, China
- Shandong Province Engineering Research Center of Black Soldier Fly Breeding and Organic Waste Conversion, Liaocheng University, Liaocheng 252000, China
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