Effects of the total fish meal replacement by plant meal on growth performance, nutrient utilization and intestinal microbiota of backcross F2 derived from blunt snout bream (Megalobrama amblycephala, ♀) × topmouth culter (Culter alburnus, ♂)

Mao, Zhuangwen; Chen, Yuan; Cao, Shenping; Tang, Jianzhou; Qu, Fufa; Tao, Min; Liu, Zhen

doi:10.1016/j.aqrep.2023.101889

Aquaculture Reports

2024

DOI: 10.1016/j.aqrep.2023.101889

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Effects of the total fish meal replacement by plant meal on growth performance, nutrient utilization and intestinal microbiota of backcross F2 derived from blunt snout bream (Megalobrama amblycephala, ♀) × topmouth culter (Culter alburnus, ♂)

Zhuangwen Mao,

Yuan Chen,

Shenping Cao

et al.

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Effects of Substituting Tenebrio molitor and Elodea nuttallii as Feed on Growth, Flesh Quality and Intestinal Microbiota of Red Swamp Crayfish (Procambarus clarkii)

Li,

Lv,

Zhao

et al. 2024

Foods

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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 Σn-3/Σn-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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Effects of Substituting Tenebrio molitor and Elodea nuttallii as Feed on Growth, Flesh Quality and Intestinal Microbiota of Red Swamp Crayfish (Procambarus clarkii)

Li,

Lv,

Zhao

et al. 2024

Foods

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show abstract

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Effects of the total fish meal replacement by plant meal on growth performance, nutrient utilization and intestinal microbiota of backcross F2 derived from blunt snout bream (Megalobrama amblycephala, ♀) × topmouth culter (Culter alburnus, ♂)

Cited by 1 publication

References 49 publications

Effects of Substituting Tenebrio molitor and Elodea nuttallii as Feed on Growth, Flesh Quality and Intestinal Microbiota of Red Swamp Crayfish (Procambarus clarkii)

Effects of Substituting Tenebrio molitor and Elodea nuttallii as Feed on Growth, Flesh Quality and Intestinal Microbiota of Red Swamp Crayfish (Procambarus clarkii)

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