Effects of Substituting Tenebrio molitor and Elodea nuttallii as Feed on Growth, Flesh Quality and Intestinal Microbiota of Red Swamp Crayfish (Procambarus clarkii)
文献类型： 外文期刊
作者： Li, Muyan 1 ; Lv, Weiwei 2 ; Zhao, Yifan 1 ; Huang, Weiwei 2 ; Yuan, Quan 2 ; Yang, Hang 2 ; Wang, Aimin 4 ; Zhou, Wenzong 2 ; Li, Mingyou 1 ;
作者机构： 1.Shanghai Ocean Univ, Key Lab Integrated Rice Fish Farming, Minist Agr & Rural Affairs, Shanghai 201306, Peoples R China
2.Shanghai Acad Agr Sci, Ecoenvironm Protect Res Inst, Shanghai 201403, Peoples R China
3.Shanghai Acad Agr Sci, Key Lab Integrated Rice Fish Farming, Minist Agr & Rural Affairs, Shanghai 201403, Peoples R China
4.Yancheng Inst Technol, Coll Marine & Biol Engn, Yancheng 224051, Peoples R China
关键词： feed substitution; Procambarus clarkii; growth; nutrition; intestinal microbiota
期刊名称：FOODS （ 影响因子：4.7； 五年影响因子：5.1 ）
ISSN：
年卷期： 2024 年 13 卷 14 期
页码：
收录情况： SCI
摘要： This study aimed to evaluate the impact of substituting a portion of feed with Tenebrio molitor (TM) and Elodea nuttallii (EN) on crayfish culture. A total of 270 crayfish (5.1 +/- 0.4 g) were fed three different diet combinations (A: 100% feed; B: 80% feed + 10% TM + 10% EN; C: 75% feed + 15% TM + 10% EN) for 12 weeks. The findings demonstrated that group C had an important beneficial impact on the growth performance of crayfish. This was evidenced by a rise in digestive enzyme activity (trypsin, lipase, and cellulase) in the intestinal and hepatopancreas, as well as an upregulation in the expression of growth-related genes (ghsr, igfbp7, mhc, mlc1, mef2, and pax7) in the muscle. Furthermore, the assessment of the flesh quality of crayfish muscle in group C was conducted. The findings indicated a significant increase (p < 0.05) in the energy value (moisture, crude protein, and crude lipid) within the muscle. The levels of delicious amino acids (Glu, Ala, Ser, Gly, and Tyr) and polyunsaturated fatty acids (ARA, DHA) were enhanced, resulting in an improved nutritional profile and flavor of the muscle while maintaining the Sigma n-3/Sigma n-6 ratio. The remodeling of the intestinal microbiota (abundance of Proteobacteria and ratio of Firmicutes/Bacteroidota bacteria) also revealed improved growth performance. Additional research is necessary to ascertain whether excessive use of TM or EN feed substitution can have negative effects on crayfish culture.
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