Suchergebnisse

This study aims to determine the effect of the use of chicken manure, starfruit waste and ice cream waste as a food medium on the production performance of Maggot BSF. The method used in this study was experimental by applying a Complete Randomized Design. The results showed that the combined use of chicken manure waste and organic waste with treatment variations did not have a significant effect (P>0.05) on weight gain and the specific daily growth rate of BSF maggots. The highest weight gain results were obtained at P4 treatment of 622 grams and the lowest in P3 treatment of 560 grams. The specific daily growth rate of BSF maggots was highest in the P4 treatment at 11.22% and the lowest in the P3 treatment at 10.53%. The ability in this study was the use of a combination of chicken manure and ice cream waste with a ratio of 50% : 50% providing weight gain and a specific daily growth rate of Black Soldier Fly maggots.

The program aims to improve the knowledge and welfare of the Family Welfare Empowerment or abbreviated as PKK group through cultivation of Black Soldier Fly (BSF) and reduce organic waste by utilizing it as BSF growing media. Reusing organic waste is an effective way to reduce waste such as vegetables and fruits. Increasing organic waste in Sungguminasa Central Market causes the society needs in knowledge and information on managing the organic waste to become economically valuable products. Based on the observations, the black soldier fly program as fish feed in term (Lady Kaka) was used as main solution because BSF in maggot phase consumes the organic waste. The program involves seven people from PKK group with majority of housewives who do not have fixed income. The implementation of this program consists of 3 phases, namely initial preparation phase which includes observation, administration, and provision of tools and materials, implementation phase which includes training and activation of PKK group, and the last is monitoring and evaluation phase. The results achieved were the transfer of knowledge through training activities to PKK group about BSF cultivation and its management to become fish feed and product marketing to increase the productivity and prosperity of PKK group as well as reducing the trash in Sungguminasa Central Market due to being utilized as growing media of BSF

AbstractThe treatment of municipal wastewater produces clean water and sewage sludge (MSS), the management of which has become a serious problem in Europe. The typical destination of MSS is to spread it on land, but the presence of heavy metals and pollutants raises environmental and health concerns. Bioconversion mediated by larvae of black soldier fly (BSFL) Hermetia illucens (Diptera, Stratiomyidae: Hermetiinae) may be a strategy for managing MSS. The process adds value by generating larvae which contain proteins and lipids that are suitable for feed and/or for industrial or energy applications, and a residue as soil conditioner. MSS from the treatment plant of Ladispoli (Rome province) was mixed with an artificial fly diet at 50% and 75% (fresh weight basis) to feed BSFL. Larval performance, substrate reduction, and the concentrations of 12 metals in the initial and residual substrates and in larval bodies at the end of the experiments were assessed. Larval survival (> 96%) was not affected. Larval weight, larval development, larval protein and lipid content, and waste reduction increased in proportion the increase of the co-substrate (fly diet). The concentration of most of the 12 elements in the residue was reduced and, in the cases of Cu and Zn, the quantities dropped under the Italian national maximum permissible content for fertilizers. The content of metals in mature larvae did not exceed the maximum allowed concentration in raw material for feed for the European Directive. This study contributes to highlight the potential of BSF for MSS recovery and its valorization. The proportion of fly diet in the mixture influenced the process, and the one with the highest co-substrate percentage performed best. Future research using other wastes or by-products as co-substrate of MSS should be explored to determine their suitability.

Österreich sieht sich mit der Situation konfrontiert, zwar sehr viel Protein in Form von Futtermitteln für die Haltung von Nutztieren zu benötigen, aber nur einen geringen Anteil davon im Land produzieren zu können. Um den Proteinbedarf dennoch zu decken, wird Soja importiert, überwiegend aus USA, Brasilien und Argentinien. Mithilfe von Insektenmehl aus biogenen Abfällen könnte sich Österreich unabhängiger von Futtermittelimporten machen. Gleichzeitig kann Insektenmehl aus biogenen Abfällen ein ökologisch vorteilhaftes Futtermittel sein: Es gibt keinen Flächenverbrauch, keinen zusätzlichen Einsatz von Pflanzenschutzmitteln und nur sehr geringe Treibhausgas-Emissionen. Diese Masterarbeit untersucht, welche Mengen an importiertem Soja in Österreich durch auf Abfällen gezüchtete Fliegenlarven ersetzt werden könnten und unter welchen Bedingungen die Produktion von Fliegenlarvenmehl aus biogenen Abfällen in Österreich rentabel ist. Aufbauend auf einer umfassenden Literaturrecherche sowie zahlreichen Interviews wurde eine Investitionsrechnung durchgeführt. Die Ergebnisse zeigen, dass die Produktion von Fliegenlarvenmehl in Österreich unter bestimmten Voraussetzungen sehr rentabel sein kann. Vor allem Transportkosten, Konvertierungsraten zwischen Insektenfutter und erzeugtem Protein und der Sojapreis sind ausschlaggebend für die Rentabilität einer Fliegenlarvenmehlproduktionsanlage. Allein bei Verwendung von biogenen Abfällen als Substrat könnten jährlich 50 Tausend Tonnen Rohprotein hergestellt werden. Das entspräche einer Substitution von 24 % der jährlichen Sojaimporte. Das Potential von Fliegenlarven in der Ernährung von Schwein und Geflügel in Österreich ist daher beachtlich. Eine Zulassung als Futtermittel in der EU ist derzeit jedoch nicht absehbar. Abfälle in den Nahrungskreislauf zu bringen ist nicht frei von Gefahren. Es ist daher dringend notwendig, neue Methoden und Prozesse für die Substrataufbereitung und die Fliegenlarvenmehlproduktion zu entwickeln, um Substratkontaminationen und Übertragungen von Krankheiten vorzubeugen. ; Austria cannot cover its livestock feed protein demand by its own. Thus, significant quantities of soybeans are imported from countries like USA, Brazil, and Argentina. Using Black Soldier Fly (BSF) larvae meal instead of soybean meal would allow Austria to become independent from feed imports. BSF larvae meal from biogenous waste can be produced in ecological sustainable manner: Land and water use is marginal, chemical plant protection is not needed and greenhouse gas emission levels are very low. This thesis analyses the potential of BSF larvae meal as feed for livestock in Austria and shows how much of the soybean imports could be substituted by domestic BSF larvae meal production. Additionally, the conditions of economic viable BSF larvae meal production are revealed. Built on an extensive literature research, congress meetings and numerous interviews, a profit comparison calculation was carried out. The main finding is that BSF larvae meal production can be cost effective under certain conditions in Austria. Transport costs, conversion ratio, and soybean price have a particularly high impact on the profitability of a fly rearing facility. Based on biogenous waste alone, about 50 thousend tonnes of crude protein can be produced, which equals a substitution of 24 % of the soybean imports. Thus, the potential of BSF fly larvae as a source of protein in the diets of swine and poultry is considerable. However, BSF larvae meal needs to be safe in order to be permitted as a feedstuff in European legislation. Hence, research efforts should focus on the development of new processes and methodologies of waste treatment, substrate preparation and fly rearing in order to guarantee valuable protein sources without the risk of contamination or pest transmission. ; submitted by: Verena Baumann ; Zusammenfassung in deutscher Sprache ; Universität für Bodenkultur Wien, Masterarbeit, 2016 ; (VLID)1935416

'QUIET PLEASE: Flies are breeding'… reads the sign displayed on the factory breeding room. A female black soldier fly (BSF) is laying around 1500 tiny white eggs onto an industrially designed grid. Over 21 days, one kilogram of her eggs will hatch into eight tonnes of larvae, which will initiate a natural process of waste nutrient recycling as they feed on containers of organic consumer waste that would otherwise go to landfill. In a factory in one of Cape Town's rapidly developing post-apartheid townships, larvae are thus recycling some 250 tonnes of 'pre' and 'post' consumer waste every day, transforming negative value waste products into highly valuable insect protein, an alternative to fishmeal – an unsustainably ocean sourced protein. Ethnographic research in this factory explored this biomimically inspired innovation, which uses nature's purification agents – fly larvae – to revalorise a potentially harmful waste product into a critically important food source for the 21st Century. This paper argues that these industrially designed insect farms produce specific technologies and violent acts of reproductive enclosure. By incorporating debates about the role of naturally inspired solutions that use biological labour to accumulate value, it makes plain the ethical implications that emerge from mimicking and enclosing nature in this way. It contends that the ambition of the discipline of biomimicry to reunite human economies with natural ecologies is overshadowed by the logics of capitalism. While the outcomes of biomimicry may indeed be ecologically sustainable, capitalism's drive to privatise and profit from the knowledge and labour of nonhuman life means not only controlling animals and their products, but also controlling the processes of life through a constellation of scientific, bureaucratic and legal techniques.