نتایج جستجو برای: livestock production activities

تعداد نتایج: 970045  

2015
A. Schucknecht M. Meroni F. Kayitakire F. Rembold A. Boureima

Livestock plays a central economic role in Niger, but it is highly vulnerable due to the high inter-annual variability of rain and hence pasture production. This study aims to develop an approach for mapping pasture biomass production to support activities of the Niger Ministry of Livestock for effective pasture management. Our approach utilises the observed spatiotemporal variability of biomas...

2017
William R. Horwath Louise Jackson Bryan M. Jenkins Jeffrey P. Mitchell Kate M. Scow Kerri L. Steenwerth

gas (GHG) emissions by 40% of 1990 levels by 2030. As a sector, agriculture is responsible for 8% of state emissions. Approximately two-thirds of that is from livestock production (manure management and enteric fermentation); 20% from fertilizer use and soil management associated with crop production; and 13% from fuel use associated with agricultural activities (e.g., irrigation pumping, cooli...

2002
Cairistiona F E Topp Chris J Doyle Christine A Watson

Organic farming systems rely on the management of biological cycles for the provision of nutrients, which are crucial to maximising the production from the system. Rotations based on the use of grass-legume leys are central to the concept of organic farming systems, because they have the potential to support both animal production, and a subsequent, exploitative, arable cropping phase. A major ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Mario Herrero Petr Havlík Hugo Valin An Notenbaert Mariana C Rufino Philip K Thornton Michael Blümmel Franz Weiss Delia Grace Michael Obersteiner

We present a unique, biologically consistent, spatially disaggregated global livestock dataset containing information on biomass use, production, feed efficiency, excretion, and greenhouse gas emissions for 28 regions, 8 livestock production systems, 4 animal species (cattle, small ruminants, pigs, and poultry), and 3 livestock products (milk, meat, and eggs). The dataset contains over 50 new g...

2012
Dean T. Thomas Jonathan Sanderman Sandra J. Eady David G. Masters Paul Sanford

On-farm activities that reduce GHG emissions or sequester carbon from the atmosphere to compensate for anthropogenic emissions are currently being evaluated by the Australian Government as carbon offset opportunities. The aim of this study was to examine the implications of establishing and grazing Kikuyu pastures, integrated as part of a mixed Merino sheep and cropping system, as a carbon offs...

Journal: :Revue scientifique et technique 2011
M Chander B Subrahmanyeswari R Mukherjee S Kumar

Agrochemicals, veterinary drugs, antibiotics and improved feeds can increase the food supply while minimising production costs in various livestock production systems around the world. However, these days, quality-conscious consumers are increasingly seeking environmentally safe, chemical-residue-free healthy foods, along with product traceability and a high standard of animal welfare, which or...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Lex Bouwman Kees Klein Goldewijk Klaas W Van Der Hoek Arthur H W Beusen Detlef P Van Vuuren Jaap Willems Mariana C Rufino Elke Stehfest

Crop-livestock production systems are the largest cause of human alteration of the global nitrogen (N) and phosphorus (P) cycles. Our comprehensive spatially explicit inventory of N and P budgets in livestock and crop production systems shows that in the beginning of the 20th century, nutrient budgets were either balanced or surpluses were small; between 1900 and 1950, global soil N surplus alm...

The aim of this article was to investigate the impact of feed sources and feeding system on milk production and milk marketing in the Babille district of Eastern Hararghe zone. Data were collected using a structured questionnaire which was administered to 152 randomly selected sample dairy cow keepers in the district. Data was analyzed using descriptive methods and regression analysis. Data fro...

2010

a substantial global increase in the demand for food of animal origin, while also aggravating the competition between crops and livestock (increasing cropping areas and reducing rangelands). The livestock revolution 1 is stretching the capacity of existing production, but it is also exacerbating environmental problems. Therefore, while it is necessary to satisfy consumer demand, improve nutriti...

2014
EMILY KACHERGIS JUSTIN D. DERNER BETHANY B. CUTTS LESLIE M. ROCHE VALERIE T. EVINER MARK N. LUBELL KENNETH W. TATE B. B. Cutts L. M. Roche V. T. Eviner M. N. Lubell

Extreme droughts like the recent 2011–2013 drought impacting the central and western United States present a challenge to sustaining livestock ranching operations and the ecosystem goods and services they produce. Wyoming ranchers manage half of this drought-prone state and are at the forefront of this challenge. We examined Wyoming ranchers’ drought management strategies and how ranch characte...

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