نتایج جستجو برای: efficient farms
تعداد نتایج: 456486 فیلتر نتایج به سال:
The prevalence, distribution, and antimicrobial susceptibility of methicillin-resistant Staphylococcus aureus (MRSA) in Belgian pig farms has been investigated. To that end, nasal samples were collected from 1,500 pigs on 50 farms randomly selected over Belgium. Both closed (breeding or farrow-to-finish) and open (fattening) farms were included. Within closed farms different age groups were inv...
The aim of this research is to characterise the wild rabbit (Oryctolagus cuniculus) commercial game farms in Spain using variables related to structure, management and marketing. To this end, a structured survey was administered in 2009 to 21 privately-owned farms. This subsector was an average age of 13. The average size of the breeding stock of the farms was 431 does and 64 bucks. Eighty-five...
Rift Valley fever is a vector-borne zoonotic disease which causes high morbidity and mortality in livestock. In the event Rift Valley fever virus is introduced to the United States or other non-endemic areas, understanding the potential patterns of spread and the areas at risk based on disease vectors and hosts will be vital for developing mitigation strategies. Presented here is a general netw...
Smallholder farming systems in sub-Saharan Africa have undergone changes in land use, productivity and sustainability. Understanding of the drivers that have led to changes in land use in these systems and factors that influence the systems' sustainability is useful to guide appropriate targeting of intervention strategies for improvement. We studied low input Teso farming systems in eastern Ug...
The purpose of this research was socioeconomicanalysis of farms using primary data in two villages of Mymensingh Sadar. A total of 60 farms including 20 small, 20 medium and 20 large were randomly selected for the study. Socioeconomic analysis showed that indebtedness was higher in large farms than those of small and medium ones. Large farms also engaged more in farm activities than others. All...
In a wind farm, the interactions between turbines caused by wakes can significantly reduce power output of farm. Cooperative control among has potential to improve output. However, existing centralized optimization methods are computationally expensive and does not scale well for large farms, limiting their practical use in real-time time-varying conditions turbine configuration (with adding or...
Harnessing renewable and clean energy resources from winds tides are promising technologies to alter the high level of consumption traditional because their great global potential. In this regard, developing farms with multiple converters is interest due skyrocketing demand for sustainable resources. However, numerical simulation these during planning phase might pose challenges, most significa...
Dairy cattle farming produces large amounts of wastewater and it causes environmental pollution eutrophication rivers, but the nutrients in waste could be recycled. Here, an improved vermicomposting system was applied to dairy farm wastewater, with a nitrogen content 100 mg/L 200mg/L tested different combinations organic substrates such as cow manure rice straw rural solid waste. Results showed...
Intensification and specialisation of agriculture in developed countries enabled productivity to be improved but had detrimental impacts on the environment and threatened the economic viability of a huge number of farms. The combination of livestock and crops, which was very common in the past, is assumed to be a viable alternative to specialised livestock or cropping systems. Mixed crop-livest...
OBJECTIVE We evaluated the epidemiology of antimicrobial resistance in enterococci from animal farms and the potential relation of resistance to antimicrobial use. METHODS Enterococci from faecal samples from 18 beef cattle, 18 dairy cattle, 18 swine, 13 chicken, and eight turkey farms were prospectively evaluated over a 6 year period from 1998 to 2003. RESULTS We evaluated 1256 isolates of...
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