The objective of this study was to evaluate meat yield and centesimal composition the Amazonian fish species, A. ocellatus, P. castelnaeana, L. friderici, in dry flood seasonal cycles rivers. In each cycle (flood dry), a total 60 were collected, comprising 20 specimens following species: friderici. Were evaluated yield, cuts samples. Meat clean body skinless filet varied between species hydrolo...

The aim of this work was to use fish processing waste (FW) as main substrate for anaerobic digestion. To enhance the biogas production FW, co-digestion done with two other substrates: cow dung (CD) and market (MW). Batch test carried out in an 1 L glass digester a temperature controlled chamber at 38°C. following mixtures were out: FW CD respectively different ratios 100:0% (A), 80:20% (B) 60:4...

A flow system was developed for the determination of total mercury concentration in fish samples by cold vapor atomic absorption spectrophotometry (CVAAS), based on the multicommuted flow injection analysis (MCFIA) approach. The system uses independently controlled solenoid valves for the introduction of reagents and samples. When not injected, solutions were recirculating to the reservoir bott...

The additional costs of solid waste recycling programs can be burdensome in large urban areas. Most urban re­ cycling programs have utilized an approach developed for suburban areas with a separate collection and processing system for recyclables operating in parallel with the exist­ ing Municipal Solid Waste (MSW) collection, processing and transfer system. Many programs even have a third para...

Arthropod development can be used to determine the time of colonization of human remains to infer a minimum postmortem interval. The black soldier fly, Hermetia illucens L. (Diptera. Stratiomyidae) is native to North America and is unique in that its larvae can consume a wide range of decomposing organic material, including carrion. Larvae development was observed on six resources: control poul...

An experiment on integrated walking catfish-tilapia culture was conducted for 5 months. The walking catfish were stocked at 400 and 800 fish/cage in two 4-m nylon cages, which were suspended in each of two 250-m earthen ponds. Sex-reversed male tilapia (Oreochromis niloticus) were reared at 1 fish/m2 in the open pond. Whereas the catfish were reared with supplemental feed, tilapia were solely d...

First processing steps of fish are species-dependent and have common practices for wild and for farmed fish. Fish farming does, however, have certain advantages over traditional fisheries in that the processor can influence postmortem biochemistry and various quality parameters. This review summarizes information about the primary processing of fish based on the influence of catching, slaughter...

This paper describes a strategic level simulation model developed to help stakeholders understand the Los Angeles solid waste system. The model structure is based on a “recycling loop” incorporating five interconnected sectors: consumption, collection, processing, disposal, and production. The user interface includes eight strategic decision levers (product durability, waste in products and pac...

4 Summary At the request of the Environment Directorate-General of the European Commission, BRGM (Bureau de Recherches Géologiques et Minières) has conducted a study on the management of mining, quarrying and ore-processing waste in the European Union. This project was completed mainly through the use of questionnaire sent to subcontractors in almost each country of the EU. To assess this infor...