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Chen F, Ding Z, Su Z, Guan J, Xu C, Wang S, Li Y, Xie D. Efficiently Substituting Dietary Fish Meal with Terrestrial Compound Protein Enhances Growth, Health, and Protein Synthesis in Largemouth Bass. Animals (Basel) 2024; 14:2196. [PMID: 39123722 PMCID: PMC11311014 DOI: 10.3390/ani14152196] [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: 06/12/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Inappropriate substitution of dietary fishmeal (FM) can adversely affect the growth, health, and metabolism of carnivorous fish species. To effectively reduce the amount of dietary FM in carnivorous largemouth bass (Micropterus salmoides), a terrestrial compound protein (Cpro) with chicken meal, bone meal, and black soldier fly protein was used to formulate four isoproteic (52%) and isolipidic (12%) diets, namely T1 (36% FM), T2 (30% FM), T3 (24% FM), and T4 (18% FM), for feeding juveniles (initial weight: ~12 g) for 81 days. Results indicated that the growth performance, feed efficiency, and morphological indicators, as well as muscle texture and edible quality of fish, did not differ significantly among the four groups. However, the muscle protein contents and ATP/AMP ratio of fish in the T4 group were significantly increased in comparison with those of fish in the T1 group, while the opposite was true for muscle glycogen. Compared with the T1 group, high serum total amino acid and MDA contents, as well as low AST activities, were observed in the T3 and T4 groups, and relatively high intestinal trypsin and lipase activities were found in the T2-T4 groups. The transcripts of intestinal proinflammatory cytokines (il-1β, il-6, and tnf-α) were downregulated in the T2-T4 groups compared with T1 group, while the expression of anti-inflammatory cytokines (il-10) and tight junction (zo-1 and occludin) showed the reverse trend. The mRNA expression of positive regulators related to protein synthesis (sirt1, pgc1-α, pi3k, and akt) were significantly upregulated in the muscle of fish fed diets T3 and T4, while their negative regulators (4e-bp1) mRNA levels were downregulated. The results indicate that the dietary FM of largemouth bass could be effectively reduced to at least 18% by the Cpro, which is beneficial to health, digestion, and protein synthesis for maintaining accelerated growth.
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Affiliation(s)
- Fang Chen
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.C.); (Z.D.); (Z.S.); (J.G.); (C.X.); (Y.L.)
| | - Zhirong Ding
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.C.); (Z.D.); (Z.S.); (J.G.); (C.X.); (Y.L.)
| | - Zeliang Su
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.C.); (Z.D.); (Z.S.); (J.G.); (C.X.); (Y.L.)
| | - Junfeng Guan
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.C.); (Z.D.); (Z.S.); (J.G.); (C.X.); (Y.L.)
| | - Chao Xu
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.C.); (Z.D.); (Z.S.); (J.G.); (C.X.); (Y.L.)
| | - Shuqi Wang
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China;
| | - Yuanyou Li
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.C.); (Z.D.); (Z.S.); (J.G.); (C.X.); (Y.L.)
| | - Dizhi Xie
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China; (F.C.); (Z.D.); (Z.S.); (J.G.); (C.X.); (Y.L.)
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Sankappa NM, Lange MD, Yildirim-Aksoy M, Eljack R, Kucuktas H, Beck BH, Abernathy JW. Transcriptome analysis and immune gene expression of channel catfish ( Ictalurus punctatus) fed diets with inclusion of frass from black soldier fly larvae. Front Physiol 2024; 14:1330368. [PMID: 38264328 PMCID: PMC10803510 DOI: 10.3389/fphys.2023.1330368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/12/2023] [Indexed: 01/25/2024] Open
Abstract
The larval waste, exoskeleton shedding, and leftover feed components of the black soldier fly and its larvae make up the by-product known as frass. In this study, we subjected channel catfish (Ictalurus punctatus) to a 10-week feeding trial to assess how different dietary amounts of frass inclusion would affect both systemic and mucosal tissue gene expression, especially in regard to growth and immune-related genes. Fish were divided in quadruplicate aquaria, and five experimental diets comprising 0, 50, 100, 200, and 300 g of frass per kilogram of feed were fed twice daily. At the end of the trial, liver, head kidney, gill, and intestine samples were collected for gene expression analyses. First, liver and intestine samples from fish fed with a no frass inclusion diet (control), low-frass (50 g/kg) inclusion diet, or a high-frass (300 g/kg) inclusion diet were subjected to Illumina RNA sequencing to determine global differential gene expression among diet groups. Differentially expressed genes (DEGs) included the upregulation of growth-related genes such as glucose-6-phosphatase and myostatin, as well as innate immune receptors and effector molecules such as toll-like receptor 5, apolipoprotein A1, C-type lectin, and lysozyme. Based on the initial screenings of low/high frass using RNA sequencing, a more thorough evaluation of immune gene expression of all tissues sampled, and all levels of frass inclusion, was further conducted. Using targeted quantitative PCR panels for both innate and adaptive immune genes from channel catfish, differential expression of genes was identified, which included innate receptors (TLR1, TLR5, TLR9, and TLR20A), proinflammatory cytokines (IL-1β type a, IL-1β type b, IL-17, IFN-γ, and TNFα), chemokines (CFC3 and CFD), and hepcidin in both systemic (liver and head kidney) and mucosal (gill and intestine) tissues. Overall, frass from black soldier fly larvae inclusion in formulated diets was found to alter global gene expression and activate innate and adaptive immunity in channel catfish, which has the potential to support disease resistance in this species in addition to demonstrated growth benefits.
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Affiliation(s)
- Nithin Muliya Sankappa
- Oak Ridge Institute for Science and Education (ORISE), ARS Research Participation Program, Oak Ridge, TN, United States
- United States Department of Agriculture, Agricultural Research Service, Aquatic Animal Health Research Unit (AAHRU), Auburn, AL, United States
| | - Miles D. Lange
- United States Department of Agriculture, Agricultural Research Service, Aquatic Animal Health Research Unit (AAHRU), Auburn, AL, United States
| | - Mediha Yildirim-Aksoy
- United States Department of Agriculture, Agricultural Research Service, Aquatic Animal Health Research Unit (AAHRU), Auburn, AL, United States
| | - Rashida Eljack
- United States Department of Agriculture, Agricultural Research Service, Aquatic Animal Health Research Unit (AAHRU), Auburn, AL, United States
| | - Huseyin Kucuktas
- U.S. Fish and Wildlife Service, Southwestern Native Aquatic Resources and Recovery Center, Aquatic Animal Health Unit, Dexter, NM, United States
| | - Benjamin H. Beck
- United States Department of Agriculture, Agricultural Research Service, Aquatic Animal Health Research Unit (AAHRU), Auburn, AL, United States
| | - Jason W. Abernathy
- United States Department of Agriculture, Agricultural Research Service, Aquatic Animal Health Research Unit (AAHRU), Auburn, AL, United States
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Ma Y, Su Z, Chen F, Xu C, Jiang K, An W, Zhang G, Xie D, Wang S, Dong Y, Li Y. Terrestrial Compound Protein Replacing Dietary Fishmeal Improved Digestive Enzyme Activity, Immune Response, Intestinal Microflora Composition, and Protein Metabolism of Golden Pompano ( Trachinotus ovatus). AQUACULTURE NUTRITION 2023; 2023:2716724. [PMID: 37829512 PMCID: PMC10567510 DOI: 10.1155/2023/2716724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 10/14/2023]
Abstract
Terrestrial compound protein (Cpro) can be potentially used to replace fishmeal (FM) in the marine carnivorous teleost, golden pompano (Trachinotus ovatus). Four isonitrogenous (45%) and isolipidic (12%) diets named FM30, AP80, PP80, and CP80 were formulated. FM30 (control) contained 30% FM and 25% basic protein, while AP80, PP80, and CP80 only contained 6% FM, where 80% FM and 25% basic protein of control diet were completely replaced by animal protein, plant protein, and Cpro, respectively. After golden pompano juveniles (initial weight: 10.32 ± 0.09 g) were, respectively, fed the four diets in floating sea cages for 10 weeks, the growth performance, intestinal digestive enzyme activity, and immune responses, protein metabolism indices of the CP80 group were similar to or better than those of the FM30 group (P > 0.05), and significantly better than those of the AP80 and PP80 groups. Specifically, the weight gain (WG), feed conversion ratio (FCR), activity of alanine transaminase (ALT), growth hormone (GH), and insulin-like growth factor-1 (IGF-1) contents of serum, mRNA level of interleukin-10 (il-10), zonula occludens-2 (zo-2), claudin-3, claudin-12, and eukaryotic translation initiation factor 4G (eif4g) were significantly higher, and the activity of α-amylase (AMS), lipase (LPS) in the foregut and midgut, interleukin-8 (il-8) expression in the intestine was significantly lower than that in the CP80 group, compared with those in AP80 and PP80 groups (P < 0.05). Moreover, the intestinal microflora composition of golden pompano fed with the CP80 diet was improved. Specifically, at the phylum level, the relative abundance of harmful bacterial strains cyanobacteria and TM7 of CP80 group was similar to those of FM30 group (P > 0.05), but was significantly lower than those of AP80 and PP80 groups (P < 0.05). At the genus level, the beneficial bacterial strains Agrobacterium and Blantia of CP80 group were also similar to those of FM30 group (P < 0.05), which were significantly higher than those of AP80 and PP80 groups, but the beneficial bacterial strains Bifidobacterium and Devosia of CP80 group were significantly higher than that in the other groups (P < 0.05). Besides, in diet CP80, the contents of amino acids and anti-nutritional factor, as well as the in vitro digestion rate were comparable to those of FM30, and the anti-nutritional factor content was between AP80 and PP80; total essential amino acids (EAAs) and methionine contents were higher than those in AP80, the glycine content was higher than that in PP80. Taken together, these results indicated that the CP80 diet had better amino acid composition and relatively low content of anti-nutritional factors, as well as high-digestion rate, and thus leads to the fish fed CP80 displaying improved effects in digestive enzyme activity, immune response, protein metabolism, and intestinal microbiota composition, which may be the important reasons to explain why that 80% of FM can be replaced by Cpro in the diet of golden pompano.
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Affiliation(s)
- Yongcai Ma
- College of Marine Sciences of South China Agricultural University and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Zeliang Su
- College of Marine Sciences of South China Agricultural University and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Fang Chen
- College of Marine Sciences of South China Agricultural University and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Chao Xu
- College of Marine Sciences of South China Agricultural University and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Kunsheng Jiang
- College of Marine Sciences of South China Agricultural University and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Wenqiang An
- College of Marine Sciences of South China Agricultural University and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Guanrong Zhang
- College of Marine Sciences of South China Agricultural University and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Dizhi Xie
- College of Marine Sciences of South China Agricultural University and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Shuqi Wang
- Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou 515063, China
| | - Yewei Dong
- College of Animal Science and Technology of Zhongkai University of Agriculture and Engineering, Guangzhou 510225, China
| | - Yuanyou Li
- College of Marine Sciences of South China Agricultural University and Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
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Bartucz T, Csókás E, Nagy B, Gyurcsák MP, Bokor Z, Bernáth G, Molnár J, Urbányi B, Csorbai B. Black Soldier Fly ( Hermetia illucens) Meal as Direct Replacement of Complex Fish Feed for Rainbow Trout ( Oncorhynchus mykiss) and African Catfish ( Clarias gariepinus). Life (Basel) 2023; 13:1978. [PMID: 37895360 PMCID: PMC10607934 DOI: 10.3390/life13101978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/19/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
In the experiments, defatted black soldier fly meal reared on vegetable byproducts was used in the fry rearing of two economically important fish species, African catfish and rainbow trout. Both fish species were reared in a recirculation system and 0-33-66-100% of the complex fry feed was replaced by a defatted prepupae meal of black soldier flies during a 28-day feeding experiment. African catfish was reared at 25 ± 1 °C while rainbow trout was reared at 12 ± 1 °C. The results showed that the growth of African catfish was not significantly reduced when 66% of the feed was replaced by soldier fly meal (mean weight in the control fish group at the end of the experiment was 0.4632 ± 0.2469 g, while the 66% group resulted mean weights of 0.4150 ± 0.1886 g) and the survival did not show any statistically different results (mean survival in control group was 57.48 ± 13.76% while it was 56.6 ± 7.763% in the 66% group). In the case of rainbow trout, replacing the feed entirely with insect meal did not cause a decrease in weight gain (final mean weight in the control group was measured at 1.9640 ± 0.4154 g, while in the group consuming only insect meal, it was 1.9410 ± 0.4248 g) or in survival (in the control group 98.5%, while in the group consuming only insect meal 99.5%). All these preliminary results indicate that black soldier fly meal can be used directly as a nursery feed in fish farming as a partial or total replacement of complete feeds. The results showed that black soldier fly meal could replace 66% of the complex brood feed of African catfish and up to 100% of rainbow trout feed without deterioration of production results. Our experiments have therefore opened the way for further experiments on insect meal in larval rearing.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Balázs Csorbai
- Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences (MATE), 2100 Godollo, Hungary; (T.B.); (E.C.); (B.N.); (M.P.G.); (Z.B.); (G.B.); (J.M.); (B.U.)
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Gebremichael A, Szabó A, Sándor ZJ, Nagy Z, Ali O, Kucska B. Chemical and Physical Properties of African Catfish ( Clarias gariepinus) Fillet Following Prolonged Feeding with Insect Meal-Based Diets. AQUACULTURE NUTRITION 2023; 2023:6080387. [PMID: 37674976 PMCID: PMC10480016 DOI: 10.1155/2023/6080387] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/15/2023] [Accepted: 08/16/2023] [Indexed: 09/08/2023]
Abstract
A 25-week experiment was undertaken to explore the effect of partial replacement of dietary fishmeal (FM) with black soldier fly meal (Hermetia illucens) (BS), mealworm meal (Tenebrio molitor) (MW), and a 1 : 1 mixture of both insect meals (BSMW) on fillet quality in African catfish (Clarias gariepinus). A total of 96 fish with an average initial body weight of 248 ± 28 g were stocked into a recirculating aquaculture system and fed in four different dietary groups (control, BS, MW, and BSMW). No mortality was recorded in any of the groups. At the end of the feeding period, 24 fish (n = 6 for each treatment, weight between 690 and 822 g) were used for analysis. There was no alteration in filleting yield or other slaughter indices within experimental groups, except the hepatosomatic index. Among quality attributes, pH 24 hr postmortem exhibited a significant difference (p < 0.05). In respect of the fatty acid profile, the n-6/n-3 ratio ranged between 1.17 and 1.40 but was not significantly modified by the partial replacement of FM. Similarly, the proximate composition of the fillets was not significantly different between the control and experimental diet groups. The ratio of polyunsaturated fatty acid to saturated fatty acids ranged between 0.67 and 0.79 in the fillets, without significant differences between groups. The atherogenic index was increased in the BS group, as compared to the others; however, the thrombogenicity index of fillets was not significantly affected. Similarly, the conventional quality traits of the fillet, such as cooking, drip, and thawing losses, did not differ within treatments. This study demonstrates that the dietary inclusion of black soldier fly and/or mealworm meals used for African catfish at the tested inclusion level has negligible impact on fillet properties.
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Affiliation(s)
- Askale Gebremichael
- Department of Freshwater Fish Ecology, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, Guba S. u. 40., 7400, Kaposvár, Hungary
- Department of Animal Science, Mizan-Tepi University, 260 Mizan Aman District, Mizan Teferi, Ethiopia
| | - András Szabó
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Physiology and Nutrition, Department of Physiology and Animal Health, Hungarian University of Agriculture and Life Sciences, Guba S. u. 40., 7400, Kaposvár, Hungary
| | - Zsuzsanna J. Sándor
- Research Centre of Aquaculture and Fisheries, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, Anna-Liget. u. 35., Szarvas 5540, Hungary
| | - Zoltán Nagy
- Research Centre of Aquaculture and Fisheries, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, Anna-Liget. u. 35., Szarvas 5540, Hungary
| | - Omeralfaroug Ali
- Agribiotechnology and Precision Breeding for Food Security National Laboratory, Institute of Physiology and Nutrition, Department of Physiology and Animal Health, Hungarian University of Agriculture and Life Sciences, Guba S. u. 40., 7400, Kaposvár, Hungary
| | - Balázs Kucska
- Department of Freshwater Fish Ecology, Institute of Aquaculture and Environmental Safety, Hungarian University of Agriculture and Life Sciences, Guba S. u. 40., 7400, Kaposvár, Hungary
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Huang X, Li H, Han T, Wang J, Ma Z, Yu X. Isolation and identification of protease-producing Bacillus amyloliquefaciens LX-6 and its application in the solid fermentation of soybean meal. Front Bioeng Biotechnol 2023; 11:1226988. [PMID: 37520297 PMCID: PMC10372485 DOI: 10.3389/fbioe.2023.1226988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023] Open
Abstract
Soybean meal (SM) is considered an ideal substitute for fish meal; however, its application is mainly limited because of its antigen proteins, glycinin and β-conglycinin. To improve the value of SM in the aquaculture industry, we employed an aerobic bacterial strain (LX-6) with protease activity of 1,390.6 ± 12.5 U/mL. This strain was isolated from soil samples and identified as Bacillus amyloliquefaciens based on morphological and physiological biochemical characteristics and 16S rDNA gene sequence analyses. Subsequently, we quantified the extent of glycinin and β-conglycinin degradation and the total protein and water-soluble protein content after SM fermentation with B. amyloliquefaciens LX-6. At 24 h of fermentation, the macromolecular antigen proteins of SM were almost completely degraded; the maximum degradation rates of glycinin and β-conglycinin reached 77.9% and 57.1%, respectively. Accordingly, not only did the concentration of water-soluble proteins increase from 5.74% to 44.45% after 48 h of fermentation but so did the concentrations of total protein and amino acids compared to those of unfermented SM. Field emission scanning electron microscopy revealed that the LX-6 strain gradually disrupted the surface structure of SM during the fermentation process. In addition, B. amyloliquefaciens LX-6 exhibited broad-spectrum antagonistic activity and a wide pH tolerance, suggesting its application in SM fermentation for fish meal replacement.
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Affiliation(s)
- Xinyi Huang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang, China
| | - Huijie Li
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang, China
| | - Tao Han
- Department of Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang, China
| | - Jiteng Wang
- Department of Aquaculture, Zhejiang Ocean University, Zhoushan, Zhejiang, China
| | - Zheng Ma
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang, China
| | - Xiaoping Yu
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection and Quarantine, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang, China
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Yue Y, Tong B, Chen M, Bao X, Qiu Y, Yang Y, Yu H, Yu Y. Substituting Fish Meal with Tubiechong ( Eupolyphaga sinensis) By-Product in the Diets of Largemouth Bass ( Micropterus salmoides): Effects on Growth, Meat Quality, and Liver Health. AQUACULTURE NUTRITION 2023; 2023:2066602. [PMID: 37324656 PMCID: PMC10264139 DOI: 10.1155/2023/2066602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 04/29/2023] [Accepted: 05/05/2023] [Indexed: 06/17/2023]
Abstract
A feeding trial was conducted to evaluate the effect of replacing 0% (control), 10% (T10), 20% (T20), 30% (T30), and 40% (T40) fish meal with a Tubiechong (Eupolyphaga sinensis) by-product in largemouth bass (Micropterus salmoides). Triplicate groups of 30 fish (5.36 ± 0.01 g) were fed two times daily to apparent satiation for 60 days. The experimental results showed that the Tubiechong by-product could improve the growth performance of largemouth bass by increasing the FBW, WGR, and SGR until the replacement ratio was 40%. The quadratic regression analysis showed that the proportion of the Tubiechong by-product was 20.79% and 20.91%, respectively, when WGR and SGR were the best. Concurrently, the meat quality in the replacement groups was higher, specifically, the lightness and white values were higher, and the water loss rates were lower (P < 0.05) than that in the control group. Moreover, the changes of the activities of CAT and GSH in the liver and T-AOC and GSH in serum could reveal the antioxidant capacity improvement of fish by the Tubiechong by-product. In the study, the replacement groups had lower T-CHO and HDL-C in serum (P < 0.05), indicating that the Tubiechong by-product had an active role in improving blood lipid and regulating lipid metabolism. Simultaneously, the replacement groups had a normal structure with central hepatocytes' nuclei and deviated from the center partly, while most of the hepatocytes were swollen in the control group with nuclear degeneration. The results showed that the Tubiechong by-product had a positive effect on the liver health of fish. Conclusively, the present study indicated that the partial dietary replacement of fish meal using the Tubiechong by-product (for up to 40% replacement level) in the diet of largemouth bass not only caused no adverse effects on fish health but also improved the growth performance, meat quality, antioxidant capacity, and hepatic health and is conducive to supplying nutritious, high-quality, and healthy aquatic products.
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Affiliation(s)
- Yuhua Yue
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, China
| | - Binbin Tong
- Sinopharm Group Dezhong (Foshan) Pharmaceutical Co., Ltd., Foshan 528225, China
| | - Mingshi Chen
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, China
| | - Xiaoxue Bao
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, China
| | - Yanming Qiu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, China
| | - Ying Yang
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, China
| | - Hui Yu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, China
| | - Yingying Yu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Science and Engineering, Foshan University, Foshan, Guangdong 528225, China
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Sogari G, Bellezza Oddon S, Gasco L, van Huis A, Spranghers T, Mancini S. Review: Recent advances in insect-based feeds: from animal farming to the acceptance of consumers and stakeholders. Animal 2023; 17 Suppl 2:100904. [PMID: 37500376 DOI: 10.1016/j.animal.2023.100904] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 06/27/2023] [Accepted: 06/29/2023] [Indexed: 07/29/2023] Open
Abstract
The search for new, alternative and sustainable feeding sources, including insects, has become an important challenge on the feed market. In 2017, the European Union (EU) started to allow the use of insect meals as feeds for fish. In addition, in 2021, the EU also authorised the use of insect meal for pig and poultry farming. However, the adoption of insect meal by the European aquaculture sector is still limited, and this is mostly due to the lack of availability of insects and their higher costs than conventional feed ingredients. Thus, the insect-based feed industry is still in its infancy, and its successful development and integration in the food value chain depend on several factors. Among these, the technical feasibility and production of quality products, and acceptance by European consumers and farmers are relevant factors. To address these points, this narrative review describes the state of the art of the potential role of insect-based feeds. The stakeholders' and consumers' perspectives are investigated, along with the effects of insect-based feeds on the production and nutritional values of fish, poultry (meat and eggs), and pork. Indeed, matching the nutritional values of insect products with conventional feeds is one of the future challenges of the insect sector, as their nutritional composition is highly dependent on the rearing substrates, and thus, their use in animal feeding needs to be investigated carefully. Feeding animals with insect-based diets affects their growth performances and the chemical composition of the derived products (fish fillets, meat, and eggs). Whether these effects can be considered positive or negative seems to depend to a great extent on the percentage of insects included in their diets and the chemical composition of the ingredients. The use of insect-based feeds has also shown a potential to improve the nutritional features and values of animal products and even to add new ones. Finally, many of the acceptance studies on the use of insects in feeds have focused mostly on the consumers' perception rather than on industry stakeholders (e.g., farmers). Future research should focus more on the farmers' perceptions on and market analyses of these innovative feeds. Even though it is likely that the upscaling of the insect sector will lead to a decrease in prices and an increase in market availability, it is still critical to understand the potential barriers and drivers for the implementation of insects as feeds from a production point of view.
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Affiliation(s)
- G Sogari
- Department of Food and Drug, University of Parma, Parco Area delle Scienze 45, 43124 Parma, Italy
| | - S Bellezza Oddon
- Department of Agricultural, Forest, and Food Sciences, University of Turin, Largo Paolo Braccini, 2, 10095 Grugliasco, TO, Italy.
| | - L Gasco
- Department of Agricultural, Forest, and Food Sciences, University of Turin, Largo Paolo Braccini, 2, 10095 Grugliasco, TO, Italy
| | - A van Huis
- Laboratory of Entomology, Wageningen University and Research, P.O. Box 16, 6700 AA Wageningen, The Netherlands
| | - T Spranghers
- Centre of Expertise for Agro- and Biotechnology, VIVES University of Applied Sciences, Wilgenstraat 32, 8800 Roeselare, Belgium
| | - S Mancini
- Department of Veterinary Sciences, University of Pisa, Viale delle Piagge 2, 56124 Pisa, Italy
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Gebremichael A, Kucska B, Ardó L, Biró J, Berki M, Lengyel-Kónya É, Tömösközi-Farkas R, Egessa R, Müller T, Gyalog G, Sándor ZJ. Physiological Response of Grower African Catfish to Dietary Black Soldier Fly and Mealworm Meal. Animals (Basel) 2023; 13:ani13060968. [PMID: 36978510 PMCID: PMC10044440 DOI: 10.3390/ani13060968] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/30/2023] Open
Abstract
A six-week experiment was carried out to test the effects of total (100%) and partial (50%) replacement of fish meal in the diet of African catfish growers with black soldier fly (B) meal, yellow mealworm (M) meal, and a 1:1 combination of both (BM) on the production and health of fish. A total of 420 fish with an average initial body weight of 200 ± 0.5 g were randomly distributed in triplicate to seven diet groups (C, B50, B100, M50, M100, BM50, and BM100, respectively). The growth performance and feed utilization of fish fed with partial or total replacement levels of FM with B were not significantly affected (p > 0.05) during the 6 weeks of feeding. In contrast, significant differences were observed between the groups fed with a diet where FM was totally replaced with M meal and the control in terms of final body weight, specific growth rate, feed conversion ratio, protein efficiency ratio, and protein productive value. Among the blood plasma biochemistry parameters, total cholesterol exhibited a significant difference (p = 0.007) between the M treatments and the control diet. The fatty acid profile of the liver was changed with respect to the long-chain polyunsaturated fatty acid content in all experimental groups. Parallel with this, the upregulation of elovl5 and fas genes in liver was found in all experimental groups compared to the control. Overall, this study shows that fish meal cannot be substituted with yellow mealworm meal in the practical diet of African catfish without compromising the growth, health and feed utilization parameters.
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Affiliation(s)
- Askale Gebremichael
- Department of Applied Fish Biology, Hungarian University of Agricultural and Life Sciences Kaposvár Campus, Guba S. u. 40, 7400 Kaposvár, Hungary
| | - Balázs Kucska
- Department of Freshwater Fish Ecology Hungarian University of Agricultural and Life Sciences Kaposvár Campus, Guba S. u. 40, 7400 Kaposvár, Hungary
| | - László Ardó
- Research Centre of Aquaculture and Fisheries, Hungarian University of Agricultural and Life Sciences, Anna liget. u. 35, 5540 Szarvas, Hungary
| | - Janka Biró
- Research Centre of Aquaculture and Fisheries, Hungarian University of Agricultural and Life Sciences, Anna liget. u. 35, 5540 Szarvas, Hungary
| | - Mária Berki
- Food Science Research Group, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43, 1118 Budapest, Hungary
| | - Éva Lengyel-Kónya
- Food Science Research Group, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43, 1118 Budapest, Hungary
| | - Rita Tömösközi-Farkas
- Food Science Research Group, Institute of Food Science and Technology, Hungarian University of Agriculture and Life Sciences, Villányi út 29-43, 1118 Budapest, Hungary
| | - Robert Egessa
- Research Centre of Aquaculture and Fisheries, Hungarian University of Agricultural and Life Sciences, Anna liget. u. 35, 5540 Szarvas, Hungary
| | - Tamás Müller
- Department of Freshwater Fish Ecology, Hungarian University of Agricultural and Life Sciences, Szent István Campus, Páter K. u. 1, 2100 Gödöllő, Hungary
| | - Gergő Gyalog
- Research Centre of Aquaculture and Fisheries, Hungarian University of Agricultural and Life Sciences, Anna liget. u. 35, 5540 Szarvas, Hungary
| | - Zsuzsanna J Sándor
- Research Centre of Aquaculture and Fisheries, Hungarian University of Agricultural and Life Sciences, Anna liget. u. 35, 5540 Szarvas, Hungary
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10
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Stejskal V, Tran HQ, Prokesová M, Zare M, Gebauer T, Policar T, Caimi C, Gai F, Gasco L. Defatted black soldier fly ( Hermetia illucens) in pikeperch ( Sander lucioperca) diets: Effects on growth performance, nutrient digestibility, fillet quality, economic and environmental sustainability. ANIMAL NUTRITION (ZHONGGUO XU MU SHOU YI XUE HUI) 2023; 12:7-19. [PMID: 36381064 PMCID: PMC9633741 DOI: 10.1016/j.aninu.2022.06.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 05/13/2022] [Accepted: 06/12/2022] [Indexed: 06/16/2023]
Abstract
The use of insect meal in aquafeed formulations has recently gained attention. Detailed knowledge about the inclusion levels for pikeperch (Sander lucioperca), a promising candidate for intensive aquaculture in Europe remains, however, fragmented. In the present study, 4 isoproteic (45% dry matter) and isoenergetic (21 MJ/kg) diets were formulated, including a control diet (H0) containing 30% fishmeal (FM) on an as-fed basis and the other 3 diets in which FM protein was replaced by defatted black soldier fly (Hemetia illucens) meal (HIM) at 25%, 50%, and 100% (diet abbreviation H9, H18 and H36, corresponding to an inclusion level of 9%, 18% and 36%, respectively). The feeding trial was performed in triplicate groups of 50 juvenile pikeperch (mean weight, 68.7 g) fed with experimental diets for 84 d during which the growth performance, nutrient digestibility, fillet quality and economic and environmental sustainability of rearing pikeperch were evaluated. Our findings indicated that pikeperch in H0, H9, and H18 groups displayed better results regarding growth performance indices, except for survival rate where no significant difference among groups was recorded (P = 0.642). A significantly lower organ-somatic index, including hepatosomatic, viscerosomatic and perivisceral fat index, was found in fish in H18 groups than other groups (P < 0.05). Inclusion of HIM affected the digestibility of the nutrients and resulted in an almost linear reduction in the apparent digestibility coefficient of dry matter and protein. Concerning the fillet quality, dietary HIM negatively affected the protein and ash contents of the fish fillets, while the crude fat remained unchanged. Dietary HIM did not significantly modify total saturated, monounsaturated and polyunsaturated fatty acids in the fillets of fed pikeperch (P > 0.05) but did reduce total n-3 fatty acids (P = 0.001) and increased total n-6 (P < 0.001). Increasing inclusion levels of HIM reduced the environmental impacts associated with fish in-to-fish out ratio but entailed heavy burdens on energy use and eutrophication. Low and moderate inclusion levels of HIM did not negatively affect land use and water use compared to an HIM-free diet (P > 0.05). The addition of HIM at a level as low as 9% elicited a similar carbon footprint to that of the control diet. The economic conversion ratio and economic profit index were negatively affected at increased insect meal inclusion levels. This study has shown that the incorporation of HIM in feed formulations for pikeperch is feasible at inclusion levels of 18% without adverse effects on growth performance parameters. The feasibility also highlighted the environmental benefits associated with land use and marine resources required to produce farmed fish.
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Affiliation(s)
- Vlastimil Stejskal
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Husova tř. 458/102, 370 05 České Budějovice, Czech Republic
| | - Hung Quang Tran
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Husova tř. 458/102, 370 05 České Budějovice, Czech Republic
| | - Markéta Prokesová
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Husova tř. 458/102, 370 05 České Budějovice, Czech Republic
| | - Mahyar Zare
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Husova tř. 458/102, 370 05 České Budějovice, Czech Republic
| | - Tatyana Gebauer
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Husova tř. 458/102, 370 05 České Budějovice, Czech Republic
| | - Tomas Policar
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Husova tř. 458/102, 370 05 České Budějovice, Czech Republic
| | - Christian Caimi
- University of Torino, Department of Agricultural, Forest and Food Sciences, Largo P. Braccini 2, 10095 Grugliasco, Italy
| | - Francesco Gai
- National Research Council, Institute of Sciences of Food Production, Largo P. Braccini 2, 10095 Grugliasco, Italy
| | - Laura Gasco
- University of Torino, Department of Agricultural, Forest and Food Sciences, Largo P. Braccini 2, 10095 Grugliasco, Italy
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11
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Candian V, Meneguz M, Tedeschi R. Immune Responses of the Black Soldier Fly Hermetia illucens (L.) (Diptera: Stratiomyidae) Reared on Catering Waste. LIFE (BASEL, SWITZERLAND) 2023; 13:life13010213. [PMID: 36676162 PMCID: PMC9867232 DOI: 10.3390/life13010213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/02/2023] [Accepted: 01/07/2023] [Indexed: 01/14/2023]
Abstract
The black soldier fly (BSF), Hermetia illucens L. (Diptera: Stratiomyidae), has a great bioconversion potential and ability to develop on diverse substrates. Although the use of catering waste and food by-products containing meat and fish would reduce the footprint of the insect sector, to date, in Europe, their use is still facing legal obstacles for insects as food and feed. Since a major request from the EU insect sector is to diversify the spectrum of allowed substrates, and considering that variations in diet composition could influence insect immune responses, we evaluated the impact of different catering wastes on BSF prepupae immunity. Insects were reared on five diets: one based on feed for laying hens and four based on catering waste containing (i) fruits and vegetables; (ii) fruits, vegetables and bread; (iii) fruit, vegetables, bread and dairy products; (iv) fruits, vegetables, bread, meat and fish. The gene expression of two antimicrobial peptides (AMPs), one defensin and one cecropin, was assessed. Moreover, the hemolymph inhibitory activity against Escherichia coli DH5α and Micrococcus yunnanensis HI55 was evaluated using diffusion assays in solid media. The up-regulation of both AMPs' encoding genes was observed in insects fed a bread-added and dairy product-added diet. All hemolymph samples showed inhibitory activity against both bacteria, affecting the colony size and number. The obtained results show how catering waste positively influences the H. illucens immune system. The possibility of modulating AMP expression levels through the diet opens up new perspectives in the management of insect health in mass rearings.
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Affiliation(s)
- Valentina Candian
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), University of Torino, Largo P. Braccini 2, 10095 Grugliasco (TO), Italy
| | - Marco Meneguz
- BEF Biosystems, Via Tancredi Canonico 18/c, 10156 Torino (TO), Italy
| | - Rosemarie Tedeschi
- Dipartimento di Scienze Agrarie, Forestali e Alimentari (DISAFA), University of Torino, Largo P. Braccini 2, 10095 Grugliasco (TO), Italy
- Correspondence: ; Tel.: +39-011-6708675
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12
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Renna M, Coppa M, Lussiana C, Le Morvan A, Gasco L, Maxin G. Full-fat insect meals in ruminant nutrition: in vitro rumen fermentation characteristics and lipid biohydrogenation. J Anim Sci Biotechnol 2022; 13:138. [PMID: 36536465 PMCID: PMC9764709 DOI: 10.1186/s40104-022-00792-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 10/06/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND The most used protein sources in ruminant nutrition are considered as having negative impacts in terms of environmental sustainability and competition with human nutrition. Therefore, the investigation of alternative and sustainable feedstuffs is becoming a priority in ruminant production systems. RESULTS This trial was designed to evaluate eight full-fat insect meals (Acheta domesticus - ACD; Alphitobius diaperinus - ALD; Blatta lateralis - BL; Gryllus bimaculatus - GB; Grylloides sygillatus - GS; Hermetia illucens - HI; Musca domestica - MD; and Tenebrio molitor - TM) as potential protein and lipid sources in ruminant nutrition. Fermentation parameters and fatty acids (FA) of rumen digesta after 24-h in vitro ruminal incubation of the tested insect meals were measured and compared with those of three plant-based meals (soybean meal, rapeseed meal and sunflower meal) and fishmeal (FM). Similarly to FM, the insect meals led to a significantly lower total gas production (on average, 1.75 vs. 4.64 mmol/g dry matter-DM), methane production (on average, 0.33 vs. 0.91 mmol/g DM), volatile FA production (on average, 4.12 vs. 7.53 mmol/g DM), and in vitro organic matter disappearance (on average, 0.32 vs. 0.59 g/g) than those observed for the plant meals. The insect meals also led to lower ammonia of rumen fluid, when expressed as a proportion of total N (on average, 0.74 vs. 0.52 for the plant and insect meals, respectively), which could be an advantage provided that intestinal digestibility is high. Differences in ruminal fermentation parameters between the insect meals could be partially explained by their chitin, crude protein and ether extract contents, as well as by their FA profile. In particular, high content of polyunsaturated FA, or C12:0 (in HI), seems to partially inhibit the ruminal fermentations. CONCLUSIONS The tested full-fat insect meals appear to be potentially an interesting protein and lipid source for ruminants, alternative to the less sustainable and commonly used ones of plant origin. The FA profile of the rumen digesta of ACD, ALD, GB, GS and TM, being rich in n-6 polyunsaturated FA, could be interesting to improve the quality of ruminant-derived food products.
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Affiliation(s)
- Manuela Renna
- grid.7605.40000 0001 2336 6580Department of Veterinary Sciences, University of Turin, Largo P. Braccini 2, 10095 Grugliasco, TO Italy
| | - Mauro Coppa
- grid.510767.2Independent Researcher, Université Clermont Auvergne, INRAE, VetAgro Sup, UMR 1213 Herbivores, Saint-Genès-Champanelle, France
| | - Carola Lussiana
- grid.7605.40000 0001 2336 6580Department of Agricultural, Forest and Food Sciences, University of Turin, Largo P. Braccini 2, 10095 Grugliasco, TO Italy
| | - Aline Le Morvan
- grid.510767.2Université Clermont Auvergne, INRAE, VetAgro Sup, UMR 1213 Herbivores, Saint-Genès-Champanelle, France
| | - Laura Gasco
- grid.7605.40000 0001 2336 6580Department of Agricultural, Forest and Food Sciences, University of Turin, Largo P. Braccini 2, 10095 Grugliasco, TO Italy
| | - Gaelle Maxin
- grid.510767.2Université Clermont Auvergne, INRAE, VetAgro Sup, UMR 1213 Herbivores, Saint-Genès-Champanelle, France
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13
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Biasato I, Chemello G, Oddon SB, Ferrocino I, Corvaglia M, Caimi C, Resconi A, Paul A, van Spankeren M, Capucchio M, Colombino E, Cocolin L, Gai F, Schiavone A, Gasco L. Hermetia illucens meal inclusion in low-fishmeal diets for rainbow trout (Oncorhynchus mykiss): effects on the growth performance, nutrient digestibility coefficients, selected gut health traits, and health status indices. Anim Feed Sci Technol 2022. [DOI: 10.1016/j.anifeedsci.2022.115341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Li X, Qin C, Fang Z, Sun X, Shi H, Wang Q, Zhao H. Replacing Dietary Fish Meal with Defatted Black Soldier Fly (Hermetia illucens) Larvae Meal Affected Growth, Digestive Physiology and Muscle Quality of Tongue Sole (Cynoglossus semilaevis). Front Physiol 2022; 13:855957. [PMID: 35492617 PMCID: PMC9043493 DOI: 10.3389/fphys.2022.855957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 03/16/2022] [Indexed: 11/25/2022] Open
Abstract
For solving the global shortage of fish meal (FM) supplies from fisheries, the black soldier fly (Hermetia illucens) has become a new protein alternative in aquatic feeds. The present study investigated the effects of dietary inclusion of defatted H. illucens larvae meal (DBLM) on growth, serum biochemical parameters, digestive function, and muscle quality of tongue sole (Cynoglossus semilaevis). The feeding experiment consisted of five experimental diets: a control diet based on FM protein (H0) and four DBLM diets, substituting 25% (H25), 50% (H50), 75% (H75), and 100% (H100) of FM. C. semilaevis (initial weight 563.48 ± 22.81 g) were randomly allocated over five treatments in quadruplicate. After 65 days of feeding, the weight gain rate (WGR), specific growth rate (SGR), and protein efficiency ratio (PER) were significantly higher in H0 and H25 groups with less feed conversion ratio (FCR) and feed intake (FI). The concentrations of serum ALT, TG, T-CHO, ALB, and GLO and their ratio (i.e., A/G) in the H25 group were also significantly higher than those in the other DBLM diet-feeding groups. The digestive enzyme activities first increased (from 25% to 75%) and then decreased (from 75%) with the increased level of DBLM in diets. Meanwhile, there were significant improvements in the thickness of the intestinal longitudinal muscle (LM), circular muscle (CM), columnar epithelium (CE), and lamina propria (LP) in H25 C. semilaevis compared to the control group (p < 0.05). The fish from the other DBLM diets groups presented significant reductions in the thicknesses of LM, CM, CE, and LP, as well as the length of microvilli (ML) in a dose-dependent manner (p < 0.05). However, the substitution of FM increased up to 50% would result in intestinal structural damage. Moreover, the proximate compositions, antioxidant and water holding capacity, and muscular structures of C. semilaevis fillets were all significantly affected after substituting 25% FM with DBLM (p < 0.05). Except for the dry matter, moisture, ash, crude fat, and protein contents were significantly higher in H25 C. semilaevis muscles. The SOD activity in the H0 group was significantly lower than that in the H25 group. The CAT activity in C. semilaevis muscles prominently reduced along with the increase in DBLM content in feeding diets (p < 0.05). The water holding capacity of C. semilaevis fillets was best in the H25 group. In summary, the optimum proportion of DBLM with FM for feeding C. semilaevis may be around 25%.
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Affiliation(s)
- Xueting Li
- Department of Fisheries, Tianjin Agricultural University, Tianjin, China
| | - Chuanjie Qin
- Key Laboratory of Sichuan Province for Fishes Conservation and Utilization in the Upper Reaches of the Yangtze River, Neijiang Normal University, Neijiang, China
| | - Zhenzhen Fang
- Department of Fisheries, Tianjin Agricultural University, Tianjin, China
| | - Xueliang Sun
- Department of Fisheries, Tianjin Agricultural University, Tianjin, China
| | - Hongyue Shi
- Department of Fisheries, Tianjin Agricultural University, Tianjin, China
| | - Qingkui Wang
- Department of Fisheries, Tianjin Agricultural University, Tianjin, China
- *Correspondence: Qingkui Wang, ; Honghao Zhao,
| | - Honghao Zhao
- Department of Fisheries, Tianjin Agricultural University, Tianjin, China
- *Correspondence: Qingkui Wang, ; Honghao Zhao,
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15
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Rangel F, Enes P, Gasco L, Gai F, Hausmann B, Berry D, Oliva-Teles A, Serra CR, Pereira FC. Differential Modulation of the European Sea Bass Gut Microbiota by Distinct Insect Meals. Front Microbiol 2022; 13:831034. [PMID: 35495644 PMCID: PMC9041418 DOI: 10.3389/fmicb.2022.831034] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/22/2022] [Indexed: 01/04/2023] Open
Abstract
The aquaculture industry is one of the fastest-growing sectors in animal food production. However, farming of carnivorous fish strongly relies on the use of wild fish-based meals, a practice that is environmentally and economically unsustainable. Insect-based diets constitute a strong candidate for fishmeal substitution, due to their high nutritional value and low environmental footprint. Nevertheless, data on the impact of insect meal (IM) on the gut microbiome of farmed fish are so far inconclusive, and very scarce in what concerns modulation of microbial-mediated functions. Here we use high-throughput 16S rRNA gene amplicon sequencing and quantitative PCR to evaluate the impact of different IMs on the composition and chitinolytic potential of the European sea bass gut digesta- and mucosa-associated communities. Our results show that insect-based diets of distinct origins differently impact the gut microbiota of the European sea bass (Dicentrarchus labrax). We detected clear modulatory effects of IM on the gut microbiota, which were more pronounced in the digesta, where communities differed considerably among the diets tested. Major community shifts were associated with the use of black soldier fly larvae (Hermetia illucens, HM) and pupal exuviae (HEM) feeds and were characterized by an increase in the relative abundance of the Firmicutes families Bacillaceae, Enterococcaceae, and Lachnospiraceae and the Actinobacteria family Actinomycetaceae, which all include taxa considered beneficial for fish health. Modulation of the digesta community by HEM was characterized by a sharp increase in Paenibacillus and a decrease of several Gammaproteobacteria and Bacteroidota members. In turn, a mealworm larvae-based diet (Tenebrio molitor, TM) had only a modest impact on microbiota composition. Further, using quantitative PCR, we demonstrate that shifts induced by HEM were accompanied by an increase in copy number of chitinase ChiA-encoding genes, predominantly originating from Paenibacillus species with effective chitinolytic activity. Our study reveals an HEM-driven increase in chitin-degrading taxa and associated chitinolytic activity, uncovering potential benefits of adopting exuviae-supplemented diets, a waste product of insect rearing, as a functional ingredient.
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Affiliation(s)
- Fábio Rangel
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- CIMAR/CIIMAR Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Paula Enes
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- CIMAR/CIIMAR Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Laura Gasco
- Department of Agricultural, Forest and Food Sciences, University of Turin, Torino, Italy
| | - Francesco Gai
- Institute of Science of Food Production, National Research Council, Torino, Italy
| | - Bela Hausmann
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - David Berry
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
- Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
| | - Aires Oliva-Teles
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- CIMAR/CIIMAR Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Claudia R. Serra
- Department of Biology, Faculty of Sciences, University of Porto, Porto, Portugal
- CIMAR/CIIMAR Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Matosinhos, Portugal
| | - Fátima C. Pereira
- Division of Microbial Ecology, Department of Microbiology and Ecosystem Science, Centre for Microbiology and Environmental Systems Science, University of Vienna, Vienna, Austria
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16
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Colombino E, Biasato I, Ferrocino I, Bellezza Oddon S, Caimi C, Gariglio M, Dabbou S, Caramori M, Battisti E, Zanet S, Ferroglio E, Cocolin L, Gasco L, Schiavone A, Capucchio MT. Effect of Insect Live Larvae as Environmental Enrichment on Poultry Gut Health: Gut Mucin Composition, Microbiota and Local Immune Response Evaluation. Animals (Basel) 2021; 11:2819. [PMID: 34679839 PMCID: PMC8532707 DOI: 10.3390/ani11102819] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 12/18/2022] Open
Abstract
The aim of this study was to evaluate the effect of Hermetia illucens (HI) and Tenebrio molitor (TM) live larvae as environmental enrichment on the mucin composition, local immune response and microbiota of broilers. A total of 180 four-day-old male broiler chickens (Ross 308) were randomly allotted to three dietary treatments (six replicates/treatment; ten animals/replicate): (i) control (C); (ii) C+HI; (iii) C+TM. Live larvae were distributed based on 5% of the expected daily feed intake. At slaughter (39 days of age), samples of duodenum, jejunum and ileum (twelve animals/diet) were submitted to mucin histochemical evaluation. Expression of MUC-2 and cytokines was evaluated by rt-qPCR in jejunum. Mucin staining intensity was not influenced by diet (p > 0.05); however, this varied depending on the intestinal segment (p < 0.001). No significant differences were recorded for IL-4, IL-6 TNF-α, MUC-2 and INF-γ gene expression in jejunum, while IL-2 was lower in the TM group compared to HI and C (p = 0.044). Caecal microbiota showed higher abundance of Clostridium, Saccharibacteria and Victivallaceae in the HI group, while Collinsella was higher in the TM group. The results suggested that live insect larvae did not impair mucin composition or local immune response, and can slightly improve caecal microbiota by enhancing a minor fraction of short chain fatty acid-producing taxa.
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Affiliation(s)
- Elena Colombino
- Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (M.G.); (M.C.); (E.B.); (S.Z.); (E.F.); (A.S.); (M.T.C.)
| | - Ilaria Biasato
- Department of Agricultural, Forestry and Food Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (I.B.); (I.F.); (S.B.O.); (C.C.); (L.C.); (L.G.)
| | - Ilario Ferrocino
- Department of Agricultural, Forestry and Food Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (I.B.); (I.F.); (S.B.O.); (C.C.); (L.C.); (L.G.)
| | - Sara Bellezza Oddon
- Department of Agricultural, Forestry and Food Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (I.B.); (I.F.); (S.B.O.); (C.C.); (L.C.); (L.G.)
| | - Christian Caimi
- Department of Agricultural, Forestry and Food Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (I.B.); (I.F.); (S.B.O.); (C.C.); (L.C.); (L.G.)
| | - Marta Gariglio
- Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (M.G.); (M.C.); (E.B.); (S.Z.); (E.F.); (A.S.); (M.T.C.)
| | - Sihem Dabbou
- Center Agriculture Food Environment (C3A), University of Trento, 38010 San Michele all’Adige, TN, Italy;
| | - Marta Caramori
- Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (M.G.); (M.C.); (E.B.); (S.Z.); (E.F.); (A.S.); (M.T.C.)
| | - Elena Battisti
- Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (M.G.); (M.C.); (E.B.); (S.Z.); (E.F.); (A.S.); (M.T.C.)
| | - Stefania Zanet
- Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (M.G.); (M.C.); (E.B.); (S.Z.); (E.F.); (A.S.); (M.T.C.)
| | - Ezio Ferroglio
- Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (M.G.); (M.C.); (E.B.); (S.Z.); (E.F.); (A.S.); (M.T.C.)
| | - Luca Cocolin
- Department of Agricultural, Forestry and Food Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (I.B.); (I.F.); (S.B.O.); (C.C.); (L.C.); (L.G.)
| | - Laura Gasco
- Department of Agricultural, Forestry and Food Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (I.B.); (I.F.); (S.B.O.); (C.C.); (L.C.); (L.G.)
| | - Achille Schiavone
- Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (M.G.); (M.C.); (E.B.); (S.Z.); (E.F.); (A.S.); (M.T.C.)
| | - Maria Teresa Capucchio
- Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, TO, Italy; (M.G.); (M.C.); (E.B.); (S.Z.); (E.F.); (A.S.); (M.T.C.)
- Institute of Sciences of Food Production, CNR, 10095 Grugliasco, TO, Italy
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Hwang D, Lim CH, Lee SH, Goo TW, Yun EY. Effect of Feed Containing Hermetia illucens Larvae Immunized by Lactobacillus plantarum Injection on the Growth and Immunity of Rainbow Trout ( Oncorhynchus mykiss). INSECTS 2021; 12:insects12090801. [PMID: 34564241 PMCID: PMC8467036 DOI: 10.3390/insects12090801] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 01/18/2023]
Abstract
Simple Summary In this study, we evaluated the effect on the growth and immunity of rainbow trout of a feed formulated using Hermetia illucens with increased antimicrobial peptides expression by Lactobacillus plantarum infection (ImHIL). As a result, growth and immunological indicators improved, and therefore, ImHIL is expected to become a good feed source for rainbow trout aquaculture. Abstract We investigated the effects of a feed containing Hermetia illucens larvae injected with bacteria on the growth and immunity of Oncorhynchus mykiss. The feed was prepared by replacing fishmeal in feed with 25 and 50% nonimmunized (HIL25, HIL50) or immunized HIL (ImHIL25, ImHIL50), and its protein:fat:carbohydrate ratio was 45:15:18. ImHIL extracts showed inhibitory activity against fish pathogenic bacteria. Both red blood cell count and insulin-like growth factor-1 as the growth indicator were the highest among the groups at week 6 after feeding in the ImHIL50 group. As immune indicators, blood aspartate aminotransferase levels were lower in the ImHIL25 and ImHIL50 groups than in that of other groups at week 6 after feeding, and lysozyme content was significantly higher in ImHIL25 and ImHIL50. The above results demonstrate that ImHIL has a beneficial effect on the improvement of growth and immunity. Accordingly, we suggest that ImHIL has the potential to be a good feed source in aquaculture.
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Affiliation(s)
- Dooseon Hwang
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul 05006, Korea; (D.H.); (C.-H.L.); (S.H.L.)
| | - Chae-Hwan Lim
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul 05006, Korea; (D.H.); (C.-H.L.); (S.H.L.)
| | - Seung Hun Lee
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul 05006, Korea; (D.H.); (C.-H.L.); (S.H.L.)
| | - Tae-Won Goo
- Department of Biochemistry, School of Medicine, Dongguk University, Gyeongju 38066, Korea;
| | - Eun-Young Yun
- Department of Integrative Biological Sciences and Industry, Sejong University, Seoul 05006, Korea; (D.H.); (C.-H.L.); (S.H.L.)
- Correspondence: ; Tel.: +82-2-6935-2523
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