Complete replacement of fishmeal with unconventional animal protein sources: A comparative study of the effects of use of mealworm, earthworm and zooplankton on growth parameters, fatty acid composition and sensory profile rainbow trout
The global trend in aquaculture is to replace fishmeal with an alternative and sustainable source of protein for fish farming. As a result, some species of invertebrates have found a place in aquaculture as a rich source of protein and a promising substitute for fishmeal. This study aimed to investi...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Aquaculture Reports |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352513424006008 |
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| author | Stefan M. Marjanović Spasoje D. Belošević Marko B. Stanković Vojislav V. Banjac Slađana M. Rakita Jelena S. Vranković Zoran Z. Marković |
| author_facet | Stefan M. Marjanović Spasoje D. Belošević Marko B. Stanković Vojislav V. Banjac Slađana M. Rakita Jelena S. Vranković Zoran Z. Marković |
| author_sort | Stefan M. Marjanović |
| collection | DOAJ |
| description | The global trend in aquaculture is to replace fishmeal with an alternative and sustainable source of protein for fish farming. As a result, some species of invertebrates have found a place in aquaculture as a rich source of protein and a promising substitute for fishmeal. This study aimed to investigate the effects of alternative protein sources on the growth parameters of rainbow trout (Oncorhynchus mykiss) as well as the fatty acid profile and the sensory quality of the fish fillets. The gas chromatography technique with a flame ionization detector was used to determine the fatty acid composition of the rainbow trout fillets, while different equations were used to determine the growth parameters and the hepatosomatic index. The sensory evaluation of the rainbow trout fillet was determined by a descriptive sensory analysis, a quality assessment and a consumer acceptance test. The replacement of fishmeal by mealworms (MWD) and earthworms (EWD) resulted in a positive effect on growth parameters, feed conversion, and hepatosomatic index (HSI) values. The mortallity of the rainbow trout fed with the experimental diets was less than 28 %. The eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) content of the trout fillets decreased with the inclusion of MWD (1.34 and 5.20 %, respectively) and EWD (1.74 and 6.41 %, respectively) in the trout diet. Feeding rainbow trout with MWD and EWD caused a decrease in the n-3/n-6 ratio compared to FMD (0.32 and 0.34, respectively vs. 0.56), whereas the addition of ZOD resulted in the increase of the n-3/n-6 ratio (0.67). The samples of fillets of trout fed with MWD and EWD belonged to the ''very good'' level of average sensory quality, while the fillets of trout fed with zooplankton were in the ''good'' quality range. Regarding acceptability by consumers all rainbow trout fillets shown good consumer acceptance. |
| format | Article |
| id | doaj-art-c9eef4fc938e4793aa66b0535a216a9c |
| institution | Kabale University |
| issn | 2352-5134 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Aquaculture Reports |
| spelling | doaj-art-c9eef4fc938e4793aa66b0535a216a9c2024-12-03T04:29:33ZengElsevierAquaculture Reports2352-51342024-12-0139102512Complete replacement of fishmeal with unconventional animal protein sources: A comparative study of the effects of use of mealworm, earthworm and zooplankton on growth parameters, fatty acid composition and sensory profile rainbow troutStefan M. Marjanović0Spasoje D. Belošević1Marko B. Stanković2Vojislav V. Banjac3Slađana M. Rakita4Jelena S. Vranković5Zoran Z. Marković6University of Belgrade, Faculty of Agriculture, Department of Animal Sciences, Nemanjina 6, Belgrade 11080, Serbia; Corresponding authors.University of Belgrade - Faculty of Agriculture, Department of Food Technology and Biochemistry, Nemanjina 6, Belgrade 11080, Serbia; Corresponding authors.University of Belgrade, Faculty of Agriculture, Department of Animal Sciences, Nemanjina 6, Belgrade 11080, SerbiaUniversity of Novi Sad, Institute of Food Technology, Novi Sad, SerbiaUniversity of Novi Sad, Institute of Food Technology, Novi Sad, SerbiaInstitute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, Belgrade 11108, SerbiaUniversity of Belgrade, Faculty of Agriculture, Department of Animal Sciences, Nemanjina 6, Belgrade 11080, SerbiaThe global trend in aquaculture is to replace fishmeal with an alternative and sustainable source of protein for fish farming. As a result, some species of invertebrates have found a place in aquaculture as a rich source of protein and a promising substitute for fishmeal. This study aimed to investigate the effects of alternative protein sources on the growth parameters of rainbow trout (Oncorhynchus mykiss) as well as the fatty acid profile and the sensory quality of the fish fillets. The gas chromatography technique with a flame ionization detector was used to determine the fatty acid composition of the rainbow trout fillets, while different equations were used to determine the growth parameters and the hepatosomatic index. The sensory evaluation of the rainbow trout fillet was determined by a descriptive sensory analysis, a quality assessment and a consumer acceptance test. The replacement of fishmeal by mealworms (MWD) and earthworms (EWD) resulted in a positive effect on growth parameters, feed conversion, and hepatosomatic index (HSI) values. The mortallity of the rainbow trout fed with the experimental diets was less than 28 %. The eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) content of the trout fillets decreased with the inclusion of MWD (1.34 and 5.20 %, respectively) and EWD (1.74 and 6.41 %, respectively) in the trout diet. Feeding rainbow trout with MWD and EWD caused a decrease in the n-3/n-6 ratio compared to FMD (0.32 and 0.34, respectively vs. 0.56), whereas the addition of ZOD resulted in the increase of the n-3/n-6 ratio (0.67). The samples of fillets of trout fed with MWD and EWD belonged to the ''very good'' level of average sensory quality, while the fillets of trout fed with zooplankton were in the ''good'' quality range. Regarding acceptability by consumers all rainbow trout fillets shown good consumer acceptance.http://www.sciencedirect.com/science/article/pii/S2352513424006008Oncorhynchus mykissAquacultureInvertebrate protein sourcesLipid contentConsumer acceptance |
| spellingShingle | Stefan M. Marjanović Spasoje D. Belošević Marko B. Stanković Vojislav V. Banjac Slađana M. Rakita Jelena S. Vranković Zoran Z. Marković Complete replacement of fishmeal with unconventional animal protein sources: A comparative study of the effects of use of mealworm, earthworm and zooplankton on growth parameters, fatty acid composition and sensory profile rainbow trout Aquaculture Reports Oncorhynchus mykiss Aquaculture Invertebrate protein sources Lipid content Consumer acceptance |
| title | Complete replacement of fishmeal with unconventional animal protein sources: A comparative study of the effects of use of mealworm, earthworm and zooplankton on growth parameters, fatty acid composition and sensory profile rainbow trout |
| title_full | Complete replacement of fishmeal with unconventional animal protein sources: A comparative study of the effects of use of mealworm, earthworm and zooplankton on growth parameters, fatty acid composition and sensory profile rainbow trout |
| title_fullStr | Complete replacement of fishmeal with unconventional animal protein sources: A comparative study of the effects of use of mealworm, earthworm and zooplankton on growth parameters, fatty acid composition and sensory profile rainbow trout |
| title_full_unstemmed | Complete replacement of fishmeal with unconventional animal protein sources: A comparative study of the effects of use of mealworm, earthworm and zooplankton on growth parameters, fatty acid composition and sensory profile rainbow trout |
| title_short | Complete replacement of fishmeal with unconventional animal protein sources: A comparative study of the effects of use of mealworm, earthworm and zooplankton on growth parameters, fatty acid composition and sensory profile rainbow trout |
| title_sort | complete replacement of fishmeal with unconventional animal protein sources a comparative study of the effects of use of mealworm earthworm and zooplankton on growth parameters fatty acid composition and sensory profile rainbow trout |
| topic | Oncorhynchus mykiss Aquaculture Invertebrate protein sources Lipid content Consumer acceptance |
| url | http://www.sciencedirect.com/science/article/pii/S2352513424006008 |
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