Influence of the diet on the composition of the earthworm <em>Eudrilus eugeniae</em>
The earthworm Eudrilus eugeniae is a well-known source of protein in animal feeding but there is lack of information on its fatty acid profile. This study aimed to determine its nutrient components and fatty acid profile. Earthworms were bred in substrate containing organic matter; peanut powder wa...
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| Format: | Article |
| Language: | English |
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CIRAD
2021-03-01
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| Series: | Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux |
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| Online Access: | https://revues.cirad.fr/index.php/REMVT/article/view/36320 |
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| author | Patrick Byambas Caroline Douny Nassim Moula Marie-Louise Scippo Jean-Luc Hornick |
| author_facet | Patrick Byambas Caroline Douny Nassim Moula Marie-Louise Scippo Jean-Luc Hornick |
| author_sort | Patrick Byambas |
| collection | DOAJ |
| description |
The earthworm Eudrilus eugeniae is a well-known source of protein in animal feeding but there is lack of information on its fatty acid profile. This study aimed to determine its nutrient components and fatty acid profile. Earthworms were bred in substrate containing organic matter; peanut powder was added in the experimental group diet. The nutrient components (protein, ash, and minerals) of the adult worms were determined according to the Kjeldahl method and by atomic absorption spectrophotometer. The fatty acid profile was determined by gas chromatography / mass spectrometry. The dry-matter protein content significantly increased in worms fed peanut powder (p < 0.05) as did the minerals measured. The main fatty acid families had similar proportions in the groups. In the saturated fatty acids, C12:0 and C18:0 were present in higher proportions in both groups, whereas in monounsaturated fatty acids, C18:1ω9 prevailed. Significant differences (p < 0.05) in polyunsaturated fatty acids were observed between the two groups. An increase in the proportion of ω6 and ω3 was observed in the experimental group compared to the control. This study showed that peanut powder significantly influenced nutrient components of E. eugeniae. The fatty acid profile of this species was similar to that of most animals. Earthworms’ diet can be altered to improve the nutritional value of E. eugeniae.
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| first_indexed | 2024-03-12T04:42:54Z |
| format | Article |
| id | doaj.art-64f9c01bde454f38bcb3226cb1518d92 |
| institution | Directory Open Access Journal |
| issn | 0035-1865 1951-6711 |
| language | English |
| last_indexed | 2024-03-12T04:42:54Z |
| publishDate | 2021-03-01 |
| publisher | CIRAD |
| record_format | Article |
| series | Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux |
| spelling | doaj.art-64f9c01bde454f38bcb3226cb1518d922023-09-03T09:32:34ZengCIRADRevue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux0035-18651951-67112021-03-0174110.19182/remvt.3632011795Influence of the diet on the composition of the earthworm <em>Eudrilus eugeniae</em>Patrick Byambas0Caroline Douny1Nassim Moula2Marie-Louise Scippo3Jean-Luc Hornick4Department of Fundamental and Applied Research for Animals and Health, Faculty of Veterinary Medicine, University of Liège, Quartier Vallée 2, av. de Cureghem 10 Bât. B43, 4000 Liège, Belgium ; Department of Zootechny, Institute of Agronomic and Forestry Research (IRAF), National Center of Technology and Scientific and Technological Research (CENAREST), Libreville, Gabon. 3Laboratory of Food Analysis, Department of Food Sciences, Faculty of Veterinary Medicine, Fundamental and Applied Research for Animals and Health (FARAH), Veterinary Public Health, University of Liège, B-4000 Liège, BelgiumDepartment of Fundamental and Applied Research for Animals and Health, Faculty of Veterinary Medicine, University of Liège, Quartier Vallée 2, av. de Cureghem 10 Bât. B43, 4000 Liège, BelgiumLaboratory of Food Analysis, Department of Food Sciences, Faculty of Veterinary Medicine, Fundamental and Applied Research for Animals and Health (FARAH), Veterinary Public Health, University of Liège, B-4000 Liège, BelgiumDepartment of Fundamental and Applied Research for Animals and Health, Faculty of Veterinary Medicine, University of Liège, Quartier Vallée 2, av. de Cureghem 10 Bât. B43, 4000 Liège, Belgium The earthworm Eudrilus eugeniae is a well-known source of protein in animal feeding but there is lack of information on its fatty acid profile. This study aimed to determine its nutrient components and fatty acid profile. Earthworms were bred in substrate containing organic matter; peanut powder was added in the experimental group diet. The nutrient components (protein, ash, and minerals) of the adult worms were determined according to the Kjeldahl method and by atomic absorption spectrophotometer. The fatty acid profile was determined by gas chromatography / mass spectrometry. The dry-matter protein content significantly increased in worms fed peanut powder (p < 0.05) as did the minerals measured. The main fatty acid families had similar proportions in the groups. In the saturated fatty acids, C12:0 and C18:0 were present in higher proportions in both groups, whereas in monounsaturated fatty acids, C18:1ω9 prevailed. Significant differences (p < 0.05) in polyunsaturated fatty acids were observed between the two groups. An increase in the proportion of ω6 and ω3 was observed in the experimental group compared to the control. This study showed that peanut powder significantly influenced nutrient components of E. eugeniae. The fatty acid profile of this species was similar to that of most animals. Earthworms’ diet can be altered to improve the nutritional value of E. eugeniae. https://revues.cirad.fr/index.php/REMVT/article/view/36320Eudrilus eugeniaeearthwormsanimal feedinganimal proteinfatty acids |
| spellingShingle | Patrick Byambas Caroline Douny Nassim Moula Marie-Louise Scippo Jean-Luc Hornick Influence of the diet on the composition of the earthworm <em>Eudrilus eugeniae</em> Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux Eudrilus eugeniae earthworms animal feeding animal protein fatty acids |
| title | Influence of the diet on the composition of the earthworm <em>Eudrilus eugeniae</em> |
| title_full | Influence of the diet on the composition of the earthworm <em>Eudrilus eugeniae</em> |
| title_fullStr | Influence of the diet on the composition of the earthworm <em>Eudrilus eugeniae</em> |
| title_full_unstemmed | Influence of the diet on the composition of the earthworm <em>Eudrilus eugeniae</em> |
| title_short | Influence of the diet on the composition of the earthworm <em>Eudrilus eugeniae</em> |
| title_sort | influence of the diet on the composition of the earthworm em eudrilus eugeniae em |
| topic | Eudrilus eugeniae earthworms animal feeding animal protein fatty acids |
| url | https://revues.cirad.fr/index.php/REMVT/article/view/36320 |
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