A5042189745- Rangeland Management and Livestock Ecology
- Agriculture and Rural Development Research
- Ruminant Nutrition and Digestive Physiology
- Urban Agriculture and Sustainability
- Animal Diversity and Health Studies
- Genetic and phenotypic traits in livestock
- Soil Carbon and Nitrogen Dynamics
- Effects of Environmental Stressors on Livestock
- Agriculture Sustainability and Environmental Impact
- African Botany and Ecology Studies
- Animal Nutrition and Physiology
- Transboundary Water Resource Management
- Animal Behavior and Welfare Studies
- Land Use and Ecosystem Services
- Agricultural Innovations and Practices
- Plant Ecology and Taxonomy Studies
- Wildlife Ecology and Conservation
- Climate change impacts on agriculture
- Organic Food and Agriculture
- Water management and technologies
- Agroforestry and silvopastoral systems
- Rabbits: Nutrition, Reproduction, Health
- Indigenous Studies and Ecology
- Rural development and sustainability
- Cassava research and cyanide
University of Kassel
2016-2025
University of Göttingen
2016-2025
Witzenhausen-Institut (Germany)
2021
Sultan Qaboos University
2018
University of Hohenheim
1996-2007
Universitätsmedizin Göttingen
2007
Institut du Sahel
1996
Abstract Along with climate change, population growth, and overexploitation of natural resources, urbanisation is among the major global challenges our time. It a nexus where many world’s grand intersect, thus key to sustainable development. The widespread understanding as successive unidirectional transformation landscapes societies from rural an urban state increasingly questioned. Examples around globe show that ‘the rural’ urban’ are not only highly interdependent, but actually coexist...
Urban and peri-urban agriculture (UPA) provide about 10% of the global food supply have a significant potential to reduce poverty increase security in urban households. To characterize UPA types intensities assess their resource use efficiencies, semi-structured interviews were conducted with 130 households actively involved Niamey, Niger. The survey data indicated high livestock manure for vegetable gardening lesser extent production staple food. component depended heavily on live animals...
To better understand the relative importance of multi-purpose functions small ruminants for their urban owners and related breeding practices including selection criteria, we undertook a comparative analysis across West African cities Kano (Nigeria), Bobo Dioulasso (Burkina Faso) Sikasso (Mali). Semi-structured questionnaires were used to collect required information from 301 sheep farmers (100, 102 99 in Kano, Sikasso) 306 goat 107 Sikasso). Sheep goats kept variety reasons income...
Abstract The relationship between feed intake at production levels and enteric CH 4 in ruminants consuming forage-based diets is well described considered to be strongly linear. Unlike temperate grazing systems, the of rain-fed tropical systems typically below maintenance requirements for part year (dry seasons). animals fed unexplored, but changes key digestive parameters low suggest that this may altered. We conducted a study using Boran yearling steers ( n 12; live weight: 162·3 kg) ×...
In order to investigate spatial and temporal characteristics of the purely grazing-based livestock husbandry system in southwestern Madagascar, individual animals from 12 cattle goat herds that were equally distributed across four villages fitted with GPS tracking collars their behaviour during pasturing was directly observed identify seasonal variations land use movement patterns along regional altitude vegetation gradient. Monitoring occurred at regular intervals two months over a two-year...
Abstract The northeastern SAVA region of Madagascar is the largest vanilla producing area in world and flourishing due to a large global demand for natural vanilla. Although general socio-economic situation has regionally improved because high prices, little known about nutritional status local farmers. We used 12-month longitudinal food survey analyze security, consumption nutrient intake farming households ( n = 140). Food data was complemented with baseline, agro-economic, field-plot...
Urban and peri-urban agriculture (UPA) has often been accused of being nutrient inefficient producing negative externalities. To investigate these problems for the West African capital Niamey (Niger), inputs through fertilizer manure to 10 vegetable gardens 9 millet fields offtakes harvests were quantified during 24 months, contamination irrigation water selected vegetables with faecal pathogens heavy metals was determined. Annual partial horizontal balances carbon (C), nitrogen (N),...
We undertook a comparative analysis of (peri-)urban livestock production strategies across three West African cities. Using semi-structured questionnaire, livestock-keeping households (HH) were interviewed in Kano/Nigeria (84 HH), Bobo Dioulasso/Burkina Faso (63 HH) and Sikasso/Mali HH). Questions covered species kept, herd sizes structure, feeds used, manure management, marketing constraints. Sheep goats dominated (p < 0.001) Kano (76 75 % compared to Dioulasso (48 40 %) Sikasso (28 %),...
China's small-scale pig keepers are the largest community of pork producers worldwide. About 56 % world's pigs originate from such systems, each producing 2–5 head per year. This study analyzes smallholders in Xishuangbanna, a prefecture Yunnan Province. Categorical principal component analysis and two-step cluster were used to identify three main production systems: livestock-corn-based (LB; 41 %), rubber based (RB; 39 (PB; 20 %) systems. RB farms earn high income fatten cross-bred pigs,...
In this study, we try to capture the degree of specialization or integration, and intensification extensification, (peri-) urban livestock production, along with factors that influence such decisions their impact on natural resource uses. A total 181 187 structured questionnaires were completed in livestock-keeping households Ouagadougou (Burkina Faso) Tamale (Ghana). Categorical principal component two-step cluster analysis used identify homogenous groups households. Cross tabulation...