نتایج جستجو برای: organic poultry production

تعداد نتایج: 800824  

2014
Franco Cotana Antonio Messineo Alessandro Petrozzi Valentina Coccia Andrea Aquino

The Biomass Research Centre, section of CIRIAF, has recently developed a biomass boiler (300 kW thermal powered), fed by the poultry manure collected in a nearby livestock. All the thermal requirements of the livestock will be covered by the heat produced by gas combustion in the gasifier boiler. Within the activities carried out by the research project ENERPOLL (Energy Valorization of Poultry ...

2014
W. Yu X. Ding S. Xue S. Li X. Liao R. Wang

In this study, poultry manure compost and organic fertilizer were added to soils derived from basalt, granite, and river alluvial deposits for use as soil parent materials. Following incubation periods of 30 or 60 days at 25 °C, the physical and chemical properties and adsorption characteristics of the soils were studied. The results indicated that the application of poultry manure compost or o...

2014
Tomislav Vukina Kenneth Anderson Mary K. Muth

In a recent paper, Vukina et al. [1] analyzed the economic effect of proposed changes in living conditions for laying hens under the USDA National organic Program (NOP), which is administered by the USDA, Agriculture Marketing Service. In addition to proposed changes in living conditions for laying hens, the NOP has proposed changes for organic broilers. With the potential changes in the requir...

Journal: :Bioresource technology 2012
J C Costa S G Barbosa M M Alves D Z Sousa

The biochemical methane potential (BMP) of raw poultry litter waste was assessed in batch assays. Biological co-treatment with Clostridium cellulolyticum, Caldicellulosiruptor saccharolyticum and Clostridium thermocellum as bioaugmentation strains, and thermochemical pre-treatments with lime and sodium hydroxide performed at different temperatures and pressures were applied as strategies to imp...

2018
Kokoasse Kpomblekou-A Desmond Mortley

Rapid growth in organic production in the past 20 years is due to consumer concerns about the impacts of conventional agriculture on the environment, food safety, and quality. There are considerable variations in nutrient concentration and the rate of mineralization among organic fertilizers. Some organic fertilizers and application rates are specific to soil types, which affect the nutrient po...

2007
L. M. Carrera B. Vinyard

Soil microbial community structure and crop yield was investigated in field tomato production systems that compared black polyethylene mulch to hairy vetch mulch and inorganic N to organic N. The following hypotheses were tested: (1) hairy vetch cover cropping increases crop yield and significantly affects soil microbial community structure when compared to the standard plastic mulch and synthe...

2014
Zhigang Xu Bryce Holmes

The levels and composition of agricultural dusts are influenced by animal species, production strategy, housing type and ventilation efficiency. Agricultural dust within animal houses is complex and consists of feed particles, microbes and their products, dander, fecal matter, gases, metals and other organic and inorganic components. Livestock and poultry production facilities may be categorize...

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