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Virome invertébrés : Découverte de 1 445 virus, dont quelques pathogènes...

Virome invertébrés : Découverte de 1 445 virus, dont quelques pathogènes... | BSF | Scoop.it
Cette étude pionnière publiée dans la revue Nature, montre que la virologie n’a, à ce jour, fait qu’effleurer la virosphère. En effet, ce ne sont pas moins de 1.445 virus incluant de nouvelles familles jusque-là inconnues qui viennent d’être découverts chez les invertébrés. Et, parmi ces microbes, quelques rares virus pourraient bien être pathogènes.

 

Par P. Bernanose & P. Pérochon. Santé log, 23.11.2016

 

[L'étude] Redefining the invertebrate RNA virosphere : Nature, 23.11.2016 http://www.nature.com/nature/journal/vaop/ncurrent/full/nature20167.html

 

___________________________________________________________________

SUR LE MÊME SUJET :

→ Des scientifiques découvrent près de 1 500 nouveaux virus, France Info, 25.11.2016 http://www.francetvinfo.fr/sciences/des-scientifiques-decouvrent-pres-de-1-500-nouveaux-virus_1939001.html

                         


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Effects of Larval Density and Feeding Rates on the Bioconversion of Vegetable Waste Using Black Soldier Fly Larvae Hermetia illucens (L.), (Diptera: Stratiomyidae)

Effects of Larval Density and Feeding Rates on the Bioconversion of Vegetable Waste Using Black Soldier Fly Larvae Hermetia illucens (L.), (Diptera: Stratiomyidae) | BSF | Scoop.it

Waste and Biomass Valorization

Angela Sofía Parra Paz,Nancy Soraya Carrejo,Carlos Humberto Gómez Rodríguez

 


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Jacques Mignon's curator insight, August 27, 2015 2:53 AM

Part abstract:

"The exploitation of fast degradation organic solid waste through the use of black soldier fly larvae Hermetia illucens constitutes a promising alternative in waste management given that it generates several products of added value (animal feed, larval compost, biofuels)."

...

"The results show that both variables have a significant influence on the bioconversion process, with larval density the most influential element.".

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EU derived protein sources no great shakes for reducing carbon footprint of feed: study

EU derived protein sources no great shakes for reducing carbon footprint of feed: study | BSF | Scoop.it
Insect and algae substitution

Replacement of 12% SBM-SA by 6.1% insects in the form of mealworms increased CFP from 595 to at least 717g CO2 Eq per kg of compound feed. “This is partly caused by the large energy requirement for heating during the production phase and a drying step thereafter,” noted the researchers.

They say that the use of other insect species with a low energy requirement during rearing, and those that can be raised on waste products could make soymeal substitution with insect derived protein more sustainable. “To explore this potential, more insect LCA studies are required,” said the team.

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Insect meals could replace up to 100% of conventional protein source in animal feeds, say researchers

Insect meals could replace up to 100% of conventional protein source in animal feeds, say researchers | BSF | Scoop.it
Insect meals could potentially replace between 25 and 100% of the soymeal or fishmeal in animal feeds, according to a new meta-study that has been accepted for publication in Animal Feed Science and Technology.
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« Devoir à la maison » : un gamin invente l’insecticide suave.

« Devoir à la maison » : un gamin invente l’insecticide suave. | BSF | Scoop.it

Par Alain Fraval. OPIE-Insectes. Des nouvelles des insectes : les Épingles entomologiques. « Devoir à la maison »

 

« Simon Kaschock-Marenda, 11 ans, était élève du collège Masterman (Pennsylvanie, États-Unis) ; Daniel Marenda, son père, biologiste à l’université Drexel, travaillant avec des drosophiles. Que choisit le premier comme sujet de son devoir de sciences naturelles ? D’examiner la réaction de ces dernières (Drosophila melanogaster) aux édulcorants que la famille venait d’adopter en lieu et place du sucre. »


« Et le Truvia (à base de stévia) de s’avérer mortel. Et le père de faire refaire la manip : même résultat. »


« Trois ans plus tard, l’effet létal est confirmé et précisé par les entomologistes de Drexel, il est publié dans PlosOne, avec Simon comme co-auteur. Les mouches montrent des défauts de coordination motrice et meurent au bout de quelques jours. Avec les édulcorants Pure Via (au stévia également), Equal, Splenda, Sweet ‘N Low et le sirop de maïs, pareillement incorporés dans le milieu d’élevage, les drosos vivent de 45 à 60 jours. »


« L’ingrédient toxique est l’érythritol, un édulcorant autorisé (peu sucrant mais non cariogène), présent naturellement dans le melon et le raisin. »


« L’université Drexel a entrepris de prendre un brevet pour cet insecticide consommable : l’érythritol pourrait être incorporé à des pièges. »


D’après, notamment, « Kid Scientist Accidentally Discovers Sweet Pest Control », lu le 4 août 2014 à //dailyhealthpost.com/
Article source : DOI: 10.1371/journal.pone.0098949

 

[Image] Kid Scientist Discovers That Truvia Sweetener Kills Fruit Flies
http://dailyhealthpost.com/truvia-sweetener-toxic-fruit-flies-study/

 

 

 


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Black Solider Fly (BSF) Links

Black Solider Fly (BSF) Links | BSF | Scoop.it
The Biopod and BSF ( black soldier fly ) site for worldwide shipping of the patented BioPod. We utilise biogrubs for aquaponic and enviroponic systems.
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Une protéine-prion, gardienne du souvenir - Le Monde

Une protéine-prion, gardienne du souvenir - Le Monde | BSF | Scoop.it
Une protéine-prion, gardienne du souvenir
Le Monde
Kausik Si s'est intéressé à la mémoire de la mouche drosophile, chez laquelle il avait déjà découvert un prion analogue à CEPB : Orb2.

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Building the Black Soldier Fly Bin | The High Desert Chronicles

Building the Black Soldier Fly Bin | The High Desert Chronicles | BSF | Scoop.it
Yesterday and today Dom was busy putting together the black soldier fly larvae bin. It's basically a large tote with a lid.

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Symton BSF Solutions's curator insight, February 9, 2014 8:09 PM

Good work on the design. But not a good idea to set this up indoor cause the odor and the less sunlight available.

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Mass Production of Black Soldier Fly Prepupae for Aquaculture Diets

Mass Production of  Black Soldier Fly Prepupae for Aquaculture Diets | BSF | Scoop.it
Article about Mass Production of Black Soldier Fly Prepupae for Aquaculture Diets

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Chile to develop salmon feed from insects | Undercurrent News

Chile to develop salmon feed from insects | Undercurrent News | BSF | Scoop.it

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Ana C. Day's curator insight, November 26, 2013 7:05 AM
November 25, 2013, 5:51 pmAlicia Villegas

Chile, the second largest salmon producer in the world after Norway, is looking into insect-based salmon feed — one of the feed alternatives hitting the headlines recently – to meet the growing demand of fish meal in aquaculture.

The project will develop a new ingredient to make insect-based feed for salmon and trout up to 10 grams, at its first feeding stage in freshwater.

“More than fattening, the focus of this project is on the fish physiological development at the fingerling stage, so the smolting phase is overcome successfully,” Claudio Pavez, coordinator of the project and a partner with P@TAGON, a company involved, told Undercurrent News.

This feed alternative would be more convenient for fish than feed based on fish, as in natural conditions salmon at the fingerling stage do not eat fish, but insects. Also, protein levels of dry weight insect-based feed fluctuate between 40% and 70% and fatty acids levels can be up to 40%, said Pavez.

Another benefit of this feed alternative is that insect production can reach high volumes to feed fish at the first stages of growth.

The production of insects is expected to reach around 5-6 metric tons per week, after the construction of a greenhouse for fly production based in Puerto Montt, Chile, expected by the end of this month.

The project is still at an experimental phase, and the insect production testing will take place by the first half of 2014. Feeding tests with salmon are planned by the end of next year and industry application is expected by 2015.

The initiative is being managed by the nutrition supply company Crandon Chile and innovation and prototype development company P@TAGON, with $400,000 public funding from the Foundation for Agrarian Innovation and private investment from fish feed supplier Biomar, the Denmark-based feed supplier.

Crandon will implement this initiative, while Biomar Chile will contribute to the diet stage formulation and the testing at production levels.

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Developmental and Waste Reduction Plasticity of Three Black Soldier Fly Strains (Diptera: Stratiomyidae) Raised on Different Livestock Manures

Authors: Zhou, Fen; Tomberlin, Jeffery K.; Zheng, Longyu; Yu, Ziniu; Zhang, Jibin

Source: Journal of Medical Entomology, Volume 50, Number 6, November 2013 , pp. 1224-1230(7)

Publisher: Entomological Society of America


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Jacques Mignon's curator insight, November 18, 2013 10:07 AM

Just Abstract ...

 

Part :

"This study demonstrates that phenotypic plasticity (e.g., development and waste conversion) varies across populations of black soldier flies and should be taken into account when selecting and establishing a population as a waste management agent in a given region of the world."

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Velcro para evitar fuga de prepupas de Hermetia illucens

Mosca soldado negra Hermetia illucens Cali Colombia
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Identification and testing of oviposition attractant chemical compounds for Musca domestica

Identification and testing of oviposition attractant chemical compounds for Musca domestica | BSF | Scoop.it
Oviposition attractants for the house fly Musca domestica have been investigated using electrophysiological tests, behavioural assays and field tests.
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Fly Farm to Harvest Maggots for Animal Feed - YouTube

South African entrepreneur Jason Drew has started a company called AgriProtein that will grow, harvest, process, press and dry fly maggots to be used for ani...

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Geometric analysis of nutrient balancing in the mealworm beetle, Tenebrio molitor L. (Coleoptera: Tenebrionidae)

Geometric analysis of nutrient balancing in the mealworm beetle, Tenebrio molitor L. (Coleoptera: Tenebrionidae) | BSF | Scoop.it

Myung Suk Rho,Kwang Pum LeeJournal of Insect Physiology

Volume 71, December 2014, Pages 37–45


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Jacques Mignon's curator insight, November 18, 2014 4:24 AM
Highlights•

Geometric analysis on nutrient regulation was performed on a mealworm beetle.

Mealworm beetles self-selected protein and carbohydrate in a 1:1 ratio.

When restricted to imbalanced diets, beetles over-ingested the surplus nutrient.

Females retained greater lipid reserves and resisted starvation better than males.

The nutrient balancing behaviour matches the response for generalists and omnivores.

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Feeding insects as protein in poultry feed

Feeding insects as protein in poultry feed | BSF | Scoop.it

In the wild, insects are natural parts of poultry species’ omnivorous diet. Commercially, however, only birds kept in free-range systems would normally come into contact with them. Insects, though, are a protein-rich food source and have been traditionally used to supplement both the diets of animals and humans. 

  
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Technical hand book of domestication and production of the insect Hermetia illucens flyer / Ouvrages / La documentation / Indonésie / IRD - Sites de représentation / IRD - Indonésie

Technical hand book of domestication and production of the insect Hermetia illucens flyer / Ouvrages / La documentation / Indonésie / IRD - Sites de représentation / IRD - Indonésie | BSF | Scoop.it
Content Management System
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Black soldier fly (BSF) larvae for faecal sludge reduction - research in South Africa (with the company Agriprotein)

Black soldier fly (BSF) larvae for faecal sludge reduction - research in South Africa (with the company Agriprotein) | BSF | Scoop.it
Hi All We are in the process of setting up a community scale BSF waste processing system at Klipheuwel, South Africa. We will collect about 500kg of faecal waste per day and hope to...

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Un laser pour provoquer l'accouplement des mouches

Un laser pour provoquer l'accouplement des mouches | BSF | Scoop.it
Une équipe de chercheurs a réussi induire un comportement d'accouplement chez la mouche... à l'aide d'un laser.

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Breeding Black Soldier Fly Indoor for Stable Production - YouTube

A blog article for full description on https://www.symtonbsf.com/1/post/2014/01/intensive-black-soldier-fly-farming.html Breeding black soldier fly indoor ca...

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Symton BSF Solutions's curator insight, February 9, 2014 7:46 PM

A video about indoor breeding set up

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Intensive Black soldier fly  farming

Intensive Black soldier fly  farming | BSF | Scoop.it
Black soldier fly is native to most area in the United States, but the density of the population might vary across states. If you don't see them frequently in your area, it means you don't have...

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John Morrow's curator insight, May 24, 2014 10:20 AM

Amazing post, I wouldn't want to farm them myself tho

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Hawai'i Homegrown Food Network - Grow Grubs! Farming Black Soldier Fly Larvae

Hawai'i Homegrown Food Network - Grow Grubs! Farming Black Soldier Fly Larvae | BSF | Scoop.it
Hawai’i Homegrown Food Network supports a new food paradigm based on a thriving community network of producers, sellers, educators, and consumers dedicated to a sustainable and diverse local food economy.

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Growth rates of black soldier fly larvae fed on fresh human faeces and their implication for improving sanitation

Growth rates of black soldier fly larvae fed on fresh human faeces and their implication for improving sanitation | BSF | Scoop.it

Tropical Medicine & International Health - Wiley Online Library

Ian J. Banks, Walter T. Gibson & Mary M. Cameron

Article first published online: 22 NOV 2013

DOI: 10.1111/tmi.12228


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Jacques Mignon's curator insight, November 26, 2013 2:53 AM
Objectives

To determine the capacity of black soldier fly larvae (BSFL) (Hermetia illucens) to convert fresh human faeces into larval biomass under different feeding regimes, and to determine how effective BSFL are as a means of human faecal waste management.

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Getting insects past the ick factor, into mass food production

Getting insects past the ick factor, into mass food production | BSF | Scoop.it
Insects form part of the traditional diets of at least 2 billion people worldwide, and more than 1,900 species have reportedly been used as food, according to the Food and Agricultural Organization report “Edible Insects: Future Prospects for Food...
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