Tenebrio Molitor Meal in Rainbow Trout (Oncorhynchus Mykiss) Diets: Effects on Animal Performance, Nutrient Digestibility and Chemical Composition of Fillets

By M. Belforti, F. Gai, C. Lussiana, M. Renna, V. Malfatto, L. Rotolo, M. De Marco, S. Dabbou, A. Schiavone, I. Zoccarato and 1 more. 2015

227 citations recorded by the source corpus.

This study evaluated the effects of diets containing Tenebrio molitor (TM) larvae meal on growth performances, somatic indexes, nutrient digestibility, dorsal muscle proximate and fatty acid (FA) compositions of rainbow trout. Three hundred sixty fish were randomly divided into three groups with four replicates each. The groups were fed diets differing in TM inclusion: 0% (TM0), 25% (TM25) and 50% (TM50) as fed weight basis. Weight gain was not affected by treatment. Feeding rate was significantly higher in TM0 than TM50. Feed conversion ratio was significantly higher in TM0 than TM25 and TM50, while an opposite trend was observed for protein efficiency ratio and specific growth rate. The survival rate was significantly lower in TM0 than TM25 and TM50. The apparent digestibility of protein was significantly lower in the TM50 group than the other groups, while the apparent digestibility of dry matter, organic matter and lipids was unaffected by treatment. If compared to control, the protein and lipid contents of fillets were respectively increased and decreased following TM inclusion in the diet. The Σn3/Σn6 FA ratio of fish dorsal muscle was linearly (TM0>TM25>TM50) reduced by TM inclusion in the diet. Results suggested that TM could be used during the growing phase in trout farming; however, additional studies on specific feeding strategies and diet formulations are needed to limit its negative effects on the lipid fraction of fillets.

Subfields: Aquatic Science, Insect Science

View Paper: https://www.semanticscholar.org/paper/da38681de0b105f8d1b1e6f838725553e1d7d9ab

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The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Aquatic Science

1. L. Gasco
2. F. Gai
3. H. Ji
4. M. Henry
5. G. Parisi
6. G. Piccolo
7. A. van Huis

In Insect Science

1. L. Gasco
2. F. Gai
3. D. Oonincx
4. G. Piccolo
5. A. van Huis
6. Efthimia Antonopoulou
7. S. Chatzifotis
8. M. Henry

Citations in the corpus

• Defatted black soldier fly (Hermetia illucens) larvae meal in diets for juvenile Jian carp (Cyprinus carpio var. Jian): Growth performance, antioxidant enzyme activities, digestive enzyme activities, intestine and hepatopancreas histological structure (2017, background): “Besides, Belforti et al. (2015) found that compared to control, the lipid contents of fillets were decreased significantly following Tenebrio molitor meal inclusion in the rainbow trout diet.”
• Effects of yellow mealworm larvae ( Tenebrio molitor ) inclusion in diets for female broiler chickens: implications for animal health and gut histology (2017, background): “In particular, Tenebrio molitor (TM) and Hermetia illucens have recently been used in poultry (Biasato et al., 2016; Bovera et al., 2016; Schiavone et al., 2017a) and fish (Belforti et al., 2015; Gasco et al., 2016; Renna et al., 2017) feeding.”
• The environmental sustainability of insects as food and feed. A review (2017, background): “A similar trial conducted with rainbow trout (Oncorhynchus mykiss) found that weight gain was not affected at higher inclusion levels of mealworm meal, while the protein content increased and lipid contents of fillets decreased, compared to the control (Belforti et al. 2015).”
• Reshaping gut bacterial communities after dietary Tenebrio molitor larvae meal supplementation in three fish species (2019, unknown): “…sustainability (Henry et al., 2015; van Huis, 2013), and recent researches have highlighted their potential in fish feeds as substitute for conventional protein sources (Belforti et al., 2015; Gasco et al., 2016, Lock et al., 2016; Piccolo et al., 2017; Iaconisi et al., 2017; Renna et al., 2017).”
• Tenebrio molitor meal in diets for European sea bass (Dicentrarchus labrax L.) juveniles: Growth performance, whole body composition and in vivo apparent digestibility (2016, methodology): “, 2016) but to our knowledge, only one trial was performed in vivo, and showed a decrease of protein apparent digestibility coefficient (ADC) when TM was included at a 50% level in rainbow trout diets (Belforti et al., 2015).”
• Effect of Tenebrio molitor larvae meal on growth performance, in vivo nutrients digestibility, somatic and marketable indexes of gilthead sea bream (Sparus aurata) (2017, background): “results were obtained for HSI in rainbow trout with a decrease in this index value at the increase of TM levels in the diets (Belforti et al., 2015).”