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Martins da Silva R, Köhler A, de Cássia de Souza Schneider R, Prado de Vargas D, Lúcia Köhler A, da Costa E Silva D, Soares J. Proximate and fatty acid profile analysis of Tenebrio molitor and Zophobas morio using different killing methods. Food Chem 2024; 445:138719. [PMID: 38401309 DOI: 10.1016/j.foodchem.2024.138719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 01/26/2024] [Accepted: 02/06/2024] [Indexed: 02/26/2024]
Abstract
The present work aimed to quantify the macronutrients and the fatty acid (FA) profile in different killing methods, blanching (BC) and freezing (FR), on edible insects of the speciesTenebrio molitor(TM) andZophobas morio(ZM). Concerning macronutrients TM-BC and TM-FR presented 51.2% and 50.6% of protein, 28% and 29.4% of lipids, and 12.4% and 11.4%. Meanwhile, ZM-BC and ZM-FR expressed 42.8% and 43.7% of protein, 39.1% and 40.1% of lipids, and 10.7% and 8.9% of carbohydrates. The FA of TM and ZM shows respectively values of Saturated Fatty Acids (∑SFA) 30% - 45%, Monounsaturated (MUFA) 47% - 32%, Polyunsaturated (∑PUFA) 23% - 22%, Atherogenicity Index (AI) 0.64 - 0.75, Thrombogenicity Index (TI) 0.77 - 1.44 and hypocholesterolemic/hypercholesterolemic index (h/H) of 2.50-1.51. Based on the results obtained, the slaughter methods showed statistically differences in relation to MUFA's in TM, and ZM larvae only in the minority fraction of FA.
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Affiliation(s)
- Rafael Martins da Silva
- Department of Life Sciences, Entomology Laboratory - University of Santa Cruz do Sul, Avenida Independência 2293, Postal code: 96815-900, Santa Cruz do Sul, Brazil.
| | - Andreas Köhler
- Department of Life Sciences, Entomology Laboratory, Postgraduate Program in Environmental Technology - University of Santa Cruz do Sul, Avenida Independência 2293, Postal code: 96815-900, Santa Cruz do Sul, Brazil.
| | - Rosana de Cássia de Souza Schneider
- Department of Sciences, Humanities and Education, Postgraduate Program in Environmental Technology - University of Santa Cruz do Sul, Avenida Independência 2293, Postal code: 96815-900, Santa Cruz do Sul, Brazil.
| | - Diego Prado de Vargas
- Department of Life Sciences, Postgraduate Program in Environmental Technology - University of Santa Cruz do Sul, Avenida Independência 2293, Postal code: 96815-900, Santa Cruz do Sul, Brazil.
| | - Ana Lúcia Köhler
- Sul-MIP Biological Agents - Industry and Commerce of Biological Agents LTDA, Avenida Independência 2293, Postal code: 96815-900, Santa Cruz do Sul, Brazil.
| | - Daniela da Costa E Silva
- Postgraduate Program in Environmental Technology - University of Santa Cruz do Sul, Avenida Independência 2293, Postal code: 96815-900, Santa Cruz do Sul, Brazil.
| | - Jocelene Soares
- Department of Sciences, Humanities and Education, Postgraduate Program in Environmental Technology - University of Santa Cruz do Sul, Avenida Independência 2293, Postal code: 96815-900, Santa Cruz do Sul, Brazil.
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Zhao J, Ban T, Miyawaki H, Hirayasu H, Izumo A, Iwase SI, Kasai K, Kawasaki K. Long-Term Dietary Fish Meal Substitution with the Black Soldier Fly Larval Meal Modifies the Caecal Microbiota and Microbial Pathway in Laying Hens. Animals (Basel) 2023; 13:2629. [PMID: 37627424 PMCID: PMC10451910 DOI: 10.3390/ani13162629] [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: 08/01/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Feeding laying hens with black soldier fly larval (BSFL) meal improves their performance. However, the beneficial mechanism of BSFL meals in improving the performance of laying hens remains unclear. This study investigated the effects of the BSFL diet on liver metabolism, gut physiology, and gut microbiota in laying hens. Eighty-seven Julia hens were randomly assigned to three groups based on their diets and fed maize grain-and soybean meal-based diets mixed with either 3% fish meal (control diet), 1.5% fish and 1.5% BSFL meals, or 3% BSFL meal for 52 weeks. No significant differences were observed in biochemical parameters, hepatic amino acid and saturated fatty acid contents, intestinal mucosal disaccharidase activity, and intestinal morphology between BSFL diet-fed and control diet-fed laying hens. However, the BSFL diet significantly increased the abundance of acetic and propionic acid-producing bacteria, caecal short-chain fatty acids, and modified the caecal microbial pathways that are associated with bile acid metabolism. These findings indicate that consuming a diet containing BSFL meal has minimal effects on plasma and liver nutritional metabolism in laying hens; however, it can alter the gut microbiota associated with short-chain fatty acid production as well as the microbial pathways involved in intestinal fat metabolism. In conclusion, this study provides evidence that BSFL can enhance enterocyte metabolism and gut homeostasis in laying hens.
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Affiliation(s)
- Junliang Zhao
- Graduate School of Agriculture, Kagawa University, Ikenobe 2393, Miki-cho, Kita-gun, Kagawa 761-0795, Japan; (J.Z.); (T.B.); (H.M.)
| | - Takuma Ban
- Graduate School of Agriculture, Kagawa University, Ikenobe 2393, Miki-cho, Kita-gun, Kagawa 761-0795, Japan; (J.Z.); (T.B.); (H.M.)
| | - Hironori Miyawaki
- Graduate School of Agriculture, Kagawa University, Ikenobe 2393, Miki-cho, Kita-gun, Kagawa 761-0795, Japan; (J.Z.); (T.B.); (H.M.)
| | - Hirofumi Hirayasu
- Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, Shakudo 442, Habikino, Osaka 583-0862, Japan; (H.H.); (A.I.); (S.-i.I.); (K.K.)
| | - Akihisa Izumo
- Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, Shakudo 442, Habikino, Osaka 583-0862, Japan; (H.H.); (A.I.); (S.-i.I.); (K.K.)
| | - Shun-ichiro Iwase
- Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, Shakudo 442, Habikino, Osaka 583-0862, Japan; (H.H.); (A.I.); (S.-i.I.); (K.K.)
| | - Koji Kasai
- Research Institute of Environment, Agriculture and Fisheries, Osaka Prefecture, Shakudo 442, Habikino, Osaka 583-0862, Japan; (H.H.); (A.I.); (S.-i.I.); (K.K.)
| | - Kiyonori Kawasaki
- Graduate School of Agriculture, Kagawa University, Ikenobe 2393, Miki-cho, Kita-gun, Kagawa 761-0795, Japan; (J.Z.); (T.B.); (H.M.)
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Gou N, Wang K, Jin T, Yang B. First Insights on the Administration of Insect Oil (Black Soldier Fly Larvae) in the Diet of Juvenile Onychostoma macrolepis. Animals (Basel) 2023; 13:ani13030518. [PMID: 36766409 PMCID: PMC9913234 DOI: 10.3390/ani13030518] [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: 12/26/2022] [Revised: 01/14/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
The use of insect products in aquatic feed is the focus of the aquaculture industry. Black soldier fly larvae oil (BSFLO) has been examined as a potential lipid source for diets for some fish species, but its utilization on Onychostoma macrolepis has not been explored. The influences of substituting fish oil (FO) with BSFLO in the diet on growth, biological indicators, approximate composition, serum biochemistry, antioxidant capacity and expression of lipid metabolism genes in juvenile O. macrolepis were investigated in an eight-week feeding experiment. Four experimental diets were prepared by replacing 0 (control), 25% (BSFLO-25), 50% (BSFLO-50) and 100% (BSFLO-100) FO with BSFLO, and then randomly assigned to twelve aquariums with ten fish (1.75 ± 0.05 g) in each aquarium. The findings showed that the growth indicators, body composition and serum biochemistry in the BSFLO-25 and BSFLO-50 groups had no statistical differences from those of the control group. The activities of superoxide dismutase (SOD) (91.22-94.96 U/mgprot) and the contents of malondialdehyde (MDA) (1.12-1.16 nmol/mgprot) in the liver appeared to be significantly the highest and the lowest in the BSFLO-25, BSFLO-50 and BSFLO-100 groups (p < 0.05). The adipocyte size and intraperitoneal fat index value of fish fed on the BSFLO-100 diet were significantly decreased compared to the control group (p < 0.05). The expression levels of lipid catabolism genes pparα, (peroxisome proliferators-activated receptor alpha) and cpt1a (carnitine palmitoyltransferase 1 isoform a) in the BSFLO-100 group were significantly higher than those of the control group (p < 0.05). The above results indicated that it was feasible to replace 25-50% dietary FO with BSFLO in juvenile O. macrolepis. Dietary BSFLO supplementation could enhance the antioxidant capacity of the liver and suppress intraperitoneal fat accumulation in O. macrolepis. The use of other insect oils in the diets of this species will be evaluated in future research.
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Kępińska-Pacelik J, Biel W. Insects in Pet Food Industry-Hope or Threat? Animals (Basel) 2022; 12:1515. [PMID: 35739851 PMCID: PMC9219536 DOI: 10.3390/ani12121515] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/01/2022] [Accepted: 06/08/2022] [Indexed: 11/17/2022] Open
Abstract
Due to the increasing global population, the world cannot currently support the well-known techniques of food production due to their harmful effects on land use, water consumption, and greenhouse gas emissions. The key answer is a solution based on the use of edible insects. They have always been present in the diet of animals. They are characterized by a very good nutritional value (e.g., high protein content and contents of essential amino acids and fatty acids, including lauric acid), and products with them receive positive results in palatability tests. Despite the existing literature data on the benefits of the use of insects as a protein source, their acceptance by consumers and animal caregivers remains problematic. In spite of the many advantages of using insects in pet food, it is necessary to analyze the risk of adverse food reactions, including allergic reactions that may be caused by insect consumption. Other hazards relate to the contamination of insects. For example, they can be contaminated with anthropogenic factors during breeding, packaging, cooking, or feeding. These contaminants include the presence of bacteria, mold fungi, mycotoxins, and heavy metals. However, insects can be used in the pet food industry. This is supported by the evolutionary adaptation of their wild ancestors to the eating of insects in the natural environment. The chemical composition of insects also corresponds to the nutritional requirements of dogs. It should be borne in mind that diets containing insect and their effects on animals require careful analysis. The aim of this article is to discuss the nutritional value of insects and their possible applications in the nutrition of companion animals, especially dogs.
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Affiliation(s)
| | - Wioletta Biel
- Department of Monogastric Animal Sciences, Division of Animal Nutrition and Food, West Pomeranian University of Technology in Szczecin, Klemensa Janickiego 29, 71-270 Szczecin, Poland;
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