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

Belforti, M.; Gai, Francesco; Lussiana, Carola; Renna, Manuela; Malfatto, Vanda Maria; Rotolo, Luca; Marco, Michele De; Dabbou, Sihem; Schiavone, Achille; Zoccarato, Ivo; Gasco, Laura

doi:10.4081/ijas.2015.4170

Cited by 188 publications

(234 citation statements)

References 25 publications

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“…The lower crude protein digestibility in TM50 diet can reflect the higher chitin content of the diet leading to a higher chitin-linked protein quota (Bellucco et al, 2013). The same effect was observed by Belforti et al (2015) which reported a decrease in crude protein digestibility in fish fed diet containing an inclusion of 50% of TM without effects on weight gain.…”

Section: Discussionsupporting

confidence: 63%

“…Ng et al (2001), replacing 40 and 80% of fishmeal with mealworm in African catfish (Clarias gariepinus), observed similar growth performance and feed intake to the control group, suggesting a high palatability for this kind of insect meal by the considered species of fish. In a more recent paper, Belforti et al (2015) reported that the inclusion of 25 or 50% of TM in rainbow trout diets did not affect the final fish weight and weight gain, but significantly ameliorated performances parameters as FCR, SGR and PER.…”

Section: Discussionmentioning

confidence: 99%

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Effect of Tenebrio molitor larvae meal on growth performance, in vivo nutrients digestibility, somatic and marketable indexes of gilthead sea bream (Sparus aurata)

Piccolo

Iaconisi

Marono

et al. 2017

Animal Feed Science and Technology

180

134

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The aim of this study was to evaluate the effects of the inclusion of Tenebrio molitor larvae meal in practical diets for gilthead sea bream on growth performance, nutrients digestibility, somatic and marketable indexes. Two separate trials were carried out: in the first a total of 153 gilthead sea bream (105.2 ± 0.17 g average initial body weight) were randomly allocated in 9 fiberglass 220 liter tanks (17 fish per tank) in an indoor water recirculating system. The fish were fed three isoenergetic and isoproteic diets formulated to contain increasing levels of TM meal inclusion and precisely: a control diet (TM0), in which fish meal was the main protein source; TM25 and TM50 diets, in which 25% and 50% of Tenebrio molitor larvae meal was added to the diet, respectively. These inclusion rates corresponded to 30% and 60% of inclusion on protein bases and 35% and 71% of fish meal substitution on protein bases for TM25 and TM50 diets, respectively. Each diet was randomly assigned to 3 tanks and the trial lasted 163 days. In the second trial the apparent digestibility coefficients of the 3 diets were measured on 72 fish randomly distributed to 3 digestibility tank-units (24 fish per unit, average body weight: 86.97±2.3 g) using an indirect method (acid insoluble ash).The group fed TM25 showed a higher (P < 0.05) final weight, specific growth rate, weight gain %, protein efficiency ratio, and a lower feed conversion ratio compared to the other 2 groups. The estimated apparent digestibility coefficients of crude protein and ether extract of the diets were lower (P < 0.01) in TM50 than in the other 2 groups. No significant differences have been found between TM0 and Tenebrio molitor larvae meal groups in morphometric and commodity-related characteristics, except for dressed yield and viscerosomatic index (VSI), that resulted the lowest and the highest, respectively, in TM50. The skin colour resulted to be affected by dietary inclusion of insect meal, especially at 50% of inclusion. The general evaluation of the results demonstrates that Tenebrio molitor larvae meal can replace fish meal up to 25% of inclusion in the diet for Sparus aurata without negative effects on weight gain, crude protein and ether extract digestibility, marketable indexes after 163 days feeding. On the contrary, when Tenebrio molitor larvae meal was included at 50%, nutrient digestibility, dressed yield, VSI and skin colour were penalized.

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Section: Discussionsupporting

confidence: 63%

Section: Discussionmentioning

confidence: 99%

Effect of Tenebrio molitor larvae meal on growth performance, in vivo nutrients digestibility, somatic and marketable indexes of gilthead sea bream (Sparus aurata)

Piccolo

Iaconisi

Marono

et al. 2017

Animal Feed Science and Technology

180

134

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“…However, replacing 70% of the fish meal did depress growth. 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). A complete replacement of fish meal by yellow mealworm meal increased the fat content of Pacific white shrimp, but did not affect its growth or feed conversion (Panini et al 2017).…”

Section: Insects Replacing Fish Meal As Feedmentioning

confidence: 88%

The environmental sustainability of insects as food and feed. A review

Huis

Oonincx

2017

Agron. Sustain. Dev.

661

381

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With a growing world population, increasingly demanding consumers, and a limited amount of agricultural land, there is an urgent need to find alternatives to conventional meat products. Livestock production is, moreover, a leading cause of anthropogenic-induced climate change. To mediate this, more sustainable diets are needed, with reduced meat consumption or the use of alternative protein sources. Insects are promoted as human food and animal feed worldwide. In tropical countries, edible insects are harvested from nature, but overexploitation, habitat changes, and environmental contamination threaten this food resource. Therefore, sustainable harvesting practices need to be developed and implemented. We provide examples of (1) aquatic insects whose populations are threatened by pollution, (2) caterpillar species in Africa that are disappearing due to overexploitation and habitat change, (3) edible insects species that are considered pests in agro-ecosystems, and (4) edible insect species that can be conserved and enhanced in forest management systems. Insect farming can be conducted either on small-scale farms or in large-scale industrialized rearing facilities. We review the environmental sustainability of insect farming compared to livestock production. The major environmental advantages of insect farming compared to livestock production are as follows: (1) less land and water is required; (2) greenhouse gas emissions are lower; (3) insects have high feed conversion efficiencies; (4) insects can transform low-value organic by-products into highquality food or feed; and (5) certain insect species can be used as animal feed or aqua feed. For instance, they can replace fish meal, which is becoming increasingly scarce and expensive.However, edible insect species intended for production should be screened for risks to humans, animals, plants, and biodiversity.

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“…The FA composition of freeze-dried hind leg samples was assessed as reported by Belforti et al (2015). Briefly, total lipids were extracted with dichloromethane/methanol (2:1, v:v) by homogenisation at room temperature.…”

Section: Fatty Acid Compositionmentioning

confidence: 99%

Bilberry pomace in growing rabbit diets: effects on quality traits of hind leg meat

Dabbou

Renna

Lussiana

et al. 2017

Italian Journal of Animal Science

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The aim of the present study was to evaluate the effects of dietary bilberry pomace (BP) on colour, cooking losses, proximate composition and fatty acid (FA) profile of hind leg meat in growing rabbits. One hundred and forty-four Grimaud weaned rabbits (35 days old) were randomly divided into four groups of 36 animals each and fed ad libitum with a basal diet (C diet) tested against three assay diets developed by substituting 50, 100 and 150 g/kg of the C diet with BP (BP5, BP10 and BP15 diets, respectively). At 83 days of age, the rabbits were slaughtered without fasting. Inclusion of BP in the diet did not significantly affect colour, cooking losses, ash and protein contents, but determined a significant increase of ether extract in the muscle. Increasing dietary inclusion of BP also determined a proportional increase of total polyunsaturated fatty acids (PUFA) and total n-3 FA, as well as a proportional decrease of total saturated fatty acids (SFA), total branched chain fatty acids (BCFA) and total monounsaturated fatty acids (MUFA) in the muscle. Dietary BP significantly improved the PUFA/SFA ratio, the R n-6/R n-3 FA ratio and the atherogenicity, thrombogenicity and hypocholesterolemic/hypercholesterolemic FA indexes of rabbit meat but it decreased D5-desaturase plus D6-desaturase index. The obtained results suggest that BP inclusion in growing rabbit diets can improve the fatty acid profile of hind leg meat, with consequent health benefits to consumers. ARTICLE HISTORY

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

Cited by 188 publications

References 25 publications

Effect of Tenebrio molitor larvae meal on growth performance, in vivo nutrients digestibility, somatic and marketable indexes of gilthead sea bream (Sparus aurata)

Effect of Tenebrio molitor larvae meal on growth performance, in vivo nutrients digestibility, somatic and marketable indexes of gilthead sea bream (Sparus aurata)

The environmental sustainability of insects as food and feed. A review

Bilberry pomace in growing rabbit diets: effects on quality traits of hind leg meat

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