Is it possible to cut down fishmeal and soybean meal use in aquafeed limiting the negative effects on rainbow trout (Oncorhynchus mykiss) fillet quality and consumer acceptance?

Bruni, Leonardo; Secci, Giulia; Husein, Yara; Faccenda, Filippo; Medeiros, Adja Cristina Lira de; Parisi, Giuliana

doi:10.1016/j.aquaculture.2021.736996

Cited by 18 publications

(13 citation statements)

References 36 publications

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“…40 Several studies investigating a mixture of insect meals with terrestrial/aquatic materials to replace fishmeal in aquatic animal diets achieved comparable growth performance but a higher degree of sustainability. [111][112][113][114] The most popular combining material in aquafeeds with insect meal is poultry by-products, [112][113][114][115] which are well accepted by a wide range of fish species, considerably cheap, and widely available at a large supply volume (17 million tonnes per year 116 ). 117 Fishery and…”

Section: Outlo O K Smentioning

confidence: 99%

Systematic review and meta‐analysis of production performance of aquaculture species fed dietary insect meals

Tran

Nguyen

Prokešová

et al. 2022

Reviews in Aquaculture

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The present work employed a systematic review and meta‐analysis to quantify the overall effects of various types of insect meal on special growth rate (SGR), feed conversion ratio (FCR) and protein efficiency ratio (PER) of aquatic animals. A total of 107 studies published from 1990 to 2021, targeting 23 freshwater and 17 marine fish species, employing 17 insect species as a replacement for fishmeal, was compiled. Overall, a significantly higher Hedges’ g value for SGR and lower FCR was found in aquatic animals fed dietary larval defatted mealworm Tenebrio molitor and pupal full‐fat silkworm Bombyx mori compared with fishmeal diet. The majority of dietary insect meals had a negative linear correlation with Hedges’ g of growth performance, except larval fly Chrysomya megacephala, which had a positive linear relationship, and of prepupal defatted black soldier fly Hermetia illucens, which had a negative quadratic relationship. Some insect meals, including G. bimaculatus, adult grasshoppers of Oxya fuscovittata and Zonocerus variegatus and larval full‐fat Cirina butyrospermi, supported adequate growth of aquatic animals at plausible inclusion levels. At as low as 2.2%, insect‐derived chitin supported growth performance and improved feed utilization of marine fish species. In the quest to minimize fishmeal in aquafeeds, insect meal holds enormous potential but is not the sole option; rather, integrating insect meal and novel/conventional materials is more strategic. The present study lays the groundwork for further multidisciplinary considerations for the effective use of insect meal as an alternative aquafeed protein with the goal of long‐term sustainability.

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Section: Outlo O K Smentioning

confidence: 99%

Systematic review and meta‐analysis of production performance of aquaculture species fed dietary insect meals

Tran

Nguyen

Prokešová

et al. 2022

Reviews in Aquaculture

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“…Plant-based aquafeeds are becoming increasingly important for commercial aquaculture due to shortages of fishmeal and other protein sources [20]. Soybean meal (SBM) is used as a low-cost plant-based alternative to fish meal, as it provides a relatively high protein content with an amino acid profile that is similar to fish meal [21][22][23][24]. However, decades of research have revealed that SBM-based diets reduce the growth of salmonids [25], while also provoking mild to severe enteritis and other health complications [26].…”

Section: Introductionmentioning

confidence: 99%

A Multidisciplinary Approach Evaluating Soybean Meal-Induced Enteritis in Rainbow Trout Oncorhynchus mykiss

Seibel

Chikwati²,

Schulz

et al. 2022

Fishes

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This study evaluated a diverse range of markers of feeding stress to obtain a more precise assessment of the welfare of rainbow trout in relation to inadequate husbandry conditions. A feeding stress model based on dietary soybean meal was employed to identify suitable minimally invasive “classical” stress markers, together with molecular signatures. In a 56-day feeding experiment, rainbow trout were fed diets containing different levels of soybean meal. The impact of these different soybean meal diets on rainbow trout was assessed by water quality analyses, clinical health observations, classic growth and performance parameters, gut histopathology, blood-parameter measurements and multigene-expression profiling in RNA from whole blood. Soybean meal-induced enteritis was manifested phenotypically by an inflammatory reaction in the posterior section of the intestine and by diarrhoea in some trout. These inflammatory changes were associated with decreased supranuclear vacuolation. The haematocrit values and the levels of plasma cortisol and circulating lymphocytes in the blood were increased in trout that had consumed high amounts of SBM. Notably, the increased haematocrit depended significantly on the bodyweight of the individual trout. The transcript levels of certain genes (e.g., MAP3K1, LYG, NOD1, STAT1 and HSP90AB) emerged as potentially useful indicators in the blood of rainbow trout providing valuable information about inadequate nutrition. The expression-profiling findings provide a basis for improved, minimally invasive monitoring of feeding regimens in trout farming and may stimulate the development of practical detection devices for innovative aquaculture operations.

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“…The present investigation is part of an extensive research study, whose results on growth, gut health, microbiota composition, and fillet quality were previously reported [11,40,41]. In this paper, we present a comprehensive evaluation of the effects of feeding rainbow trout fishmeal-free diets, including graded levels of PBM and partially defatted BSFM, either singly or in combination, on whole-body composition, nutrient-energy mass balance and retention, digestive functions, and welfare.…”

Section: Introductionmentioning

confidence: 92%

“…The test feed ingredients and diets were analyzed for moisture, ash, crude protein (N × 6.25), and P, according to the AOAC [43]. Their lipid content was determined following Folch et al [44]; for the fatty acid profile, see Bruni et al [41]. Gross energy was determined by adiabatic bomb calorimeter (IKA C7000, Werke GmbH and Co., Staufen, Germany).…”

Section: Test Feed Ingredients and Diet Composition Analysismentioning

confidence: 99%

Growth and Welfare of Rainbow Trout (Oncorhynchus mykiss) in Response to Graded Levels of Insect and Poultry By-Product Meals in Fishmeal-Free Diets

Cardinaletti

Marco

Daniso

et al. 2022

Animals

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This study compared the nutrient-energy retention, digestive function, growth performance, and welfare of rainbow trout (ibw 54 g) fed isoproteic (42%), isolipidic (24%), fishmeal-free diets (CV) over 13 weeks. The diets consisted of plant-protein replacement with graded levels (10, 30, 60%) of protein from poultry by-product (PBM) and black soldier fly H. illucens pupae (BSFM) meals, either singly or in combination. A fishmeal-based diet was also tested (CF). Nitrogen retention improved with moderate or high levels of dietary PBM and BSFM relative to CV (p < 0.05). Gut brush border enzyme activity was poorly affected by the diets. Gastric chitinase was up-regulated after high BSFM feeding (p < 0.05). The gut peptide and amino acid transport genes were differently regulated by protein source and level. Serum cortisol was unaffected, and the changes in metabolites stayed within the physiological range. High PBM and high BSFM lowered the leukocyte respiratory burst activity and increased the lysozyme activity compared to CV (p < 0.05). The BSFM and PBM both significantly changed the relative percentage of lymphocytes and monocytes (p < 0.05). In conclusion, moderate to high PBM and BSFM inclusions in fishmeal-free diets, either singly or in combination, improved gut function and nutrient retention, resulting in better growth performance and the good welfare of the rainbow trout.

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Is it possible to cut down fishmeal and soybean meal use in aquafeed limiting the negative effects on rainbow trout (Oncorhynchus mykiss) fillet quality and consumer acceptance?

Cited by 18 publications

References 36 publications

Systematic review and meta‐analysis of production performance of aquaculture species fed dietary insect meals

Systematic review and meta‐analysis of production performance of aquaculture species fed dietary insect meals

A Multidisciplinary Approach Evaluating Soybean Meal-Induced Enteritis in Rainbow Trout Oncorhynchus mykiss

Growth and Welfare of Rainbow Trout (Oncorhynchus mykiss) in Response to Graded Levels of Insect and Poultry By-Product Meals in Fishmeal-Free Diets

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