نتایج جستجو برای: livestock systems

تعداد نتایج: 1202376  

Journal: :Revue scientifique et technique 2014
D Berckmans

The worldwide demand for meat and animal products is expected to increase by at least 40% in the next 15 years. The first question is how to achieve high-quality, sustainable and safe meat production that can meet this demand. At the same time, livestock production is currently facing serious problems. Concerns about animal health in relation to food safety and human health are increasing. The ...

2011
Guilherme J. M. Rosa

Frontiers in Livestock Genomics (FLG) provides a venue for investigators to publish basic, applied, and methodological research toward a better understanding of the genetic mechanisms underlying the expression of complex phenotypes in livestock, the effects of domestication and evolutionary processes on genome variability, as well as innovative strategies for the genetic improvement of economic...

Journal: :Revue scientifique et technique 2014
J-P Pradbre

This study examines the prospects for strong growth in the supply and demand for animal products worldwide, especially in developing countries, where 80% of the world's population lives. Based on scientific publications, statistics and field observations, it reviews greenhouse gas emission levels from livestock, the ability of ruminant livestock systems to sequester carbon and the capacity of t...

Journal: :The Journal of veterinary medical science 2011
Kohei Makita Eric M Fèvre Charles Waiswa Winyi Kaboyo Mark C Eisler Susan C Welburn

Urban and peri-urban livestock farming in developing countries plays an important role in food security in cities; however it brings with it zoonotic risks. The present study was conducted to identify the most important livestock farming-related zoonotic diseases among the human population in urban and peri-urban areas of Kampala, Uganda and to assess the risks from such farming. A framework fo...

2006
S. Sayadi J. Calatrava Samir Sayadi Javier Calatrava

Mountain livestock systems, and particularly those based on breeding small ruminants, traditionally constituted a mainstay element of the local economy in Southeastern Spain's mountainous areas. With the rural exodus, which began in the early sixties, these systems were in critical danger of disappearing, due to, among other causes, the scarcity of shepherds and goatherds, the breakdown of an e...

Livestock have made major contribution to human societies by providing food, shelter, fuel, and services.  Sheep and goat are economically important livestock play an important socioeconomic role for small and large farmers in Libya.  Small ruminant animal meat is popular for Libyan customers, and demand is particularly high during religious and cultural festivals.  Small ruminants is valued fo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم پایه دامغان 1389

in this thesis, ‎‎using‎‎ ‎concept‎s‎ ‎of‎ ‎wavelet‎s‎ ‎theory ‎‎‎som‎e‎ ‎methods‎‎ ‎of‎ ‎th‎e ‎solving‎‎ ‎optimal‎‎ ‎‎con‎tr‎ol‎ problems ‎(ocps)‎‎. ‎g‎overned by time-delay systems is investigated. ‎th‎is‎ thesis contains ‎tw‎o parts. ‎‎first, the method of obtaining ‎o‎f ‎the‎ ‎‎ocps‎ in time delay systems by linear legendre multiwavelets is ‎ ‎presented‎.‎‎‎‎ the main advantage of the meth...

2014
Mariecia D. Fraser Jon M. Moorby James E. Vale Darren M. Evans

BACKGROUND With world food demand expected to double by 2050, identifying farming systems that benefit both agricultural production and biodiversity is a fundamentally important challenge for the 21(st) century, but this has to be achieved in a sustainable way. Livestock grazing management directly influences both economic outputs and biodiversity on upland farms while contributing to potential...

Livestock have made major contribution to human societies by providing food, shelter, fuel, and services.  Sheep and goat are economically important livestock play an important socioeconomic role for small and large farmers in Libya.  Small ruminant animal meat is popular for Libyan customers, and demand is particularly high during religious and cultural festivals.  Small ruminants is valued fo...

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