A5006830756- Ruminant Nutrition and Digestive Physiology
- Botany and Plant Ecology Studies
- Genetic and phenotypic traits in livestock
- Rangeland Management and Livestock Ecology
- Agronomic Practices and Intercropping Systems
- Bioenergy crop production and management
- Pasture and Agricultural Systems
- Agroforestry and silvopastoral systems
- Crop Yield and Soil Fertility
- Agriculture, Plant Science, Crop Management
- Agriculture and Biological Studies
- Soil Carbon and Nitrogen Dynamics
- Ecology and Vegetation Dynamics Studies
- Rangeland and Wildlife Management
- Wildlife Ecology and Conservation
- Agriculture Sustainability and Environmental Impact
- Turfgrass Adaptation and Management
- Plant Ecology and Soil Science
- Effects of Environmental Stressors on Livestock
- Agriculture and Rural Development Research
- Rabbits: Nutrition, Reproduction, Health
- Agricultural economics and policies
- Botanical Research and Chemistry
- Agricultural Economics and Policy
- Reproductive Physiology in Livestock
Aberystwyth University
2013-2025
Institute of Biological, Environmental and Rural Sciences
2012-2025
Max Planck Institute of Molecular Plant Physiology
2007
Science Applications International Corporation (United States)
1991
Prehistoric Society
1990
University of Wales
1990
Midland College
1968
Royal Geographical Society
1957
Institute of Navigation
1957
Abstract The combined benefits of a high crude protein concentration, and possible protection growth‐promoting properties, make forage legumes potentially attractive as natural means increasing liveweight gain time to slaughter lambs in lamb finishing systems. An experiment was conducted compare the production performance meat quality grazing finished on red clover ( Trifolium pratense ), lucerne Medicago sativa ) or perennial ryegrass Lolium perenne swards. Replicate n = 2) swards clover,...
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 21st century, but this has be achieved in sustainable way. Livestock grazing management directly influences economic outputs on upland farms while contributing potentially damaging greenhouse gas emissions, yet no study attempted address these impacts simultaneously. Methods Using replicated,...
Waste biomass is generated during the conservation management of semi-natural habitats, and represents an unused resource potential bioenergy feedstock that does not compete with food production. Thermogravimetric analysis was used to characterise a representative range in Wales. Of types assessed, those dominated by rush (Juncus effuses) bracken (Pteridium aquilinum) exhibited highest lowest volatile compositions respectively were selected for bench scale conversion via fast pyrolysis. Each...
Numerous soil water repellency (SWR) studies have investigated the possible causes of this temporal phenomenon, yet there remains a lack knowledge on order importance main driving forces SWR in context changing environmental conditions under grassland ecosystems. To study separate and combined effects texture, climate, cover type inducing or altering SWR, four sites from different climatic regions were selected: Ciavolo (CI, IT), Csólyospálos (CSP, HU), Pwllpeiran (PW, UK), Sekule (SE, SK)....
Abstract Natural handicaps generally restrict farming in the upland areas to grassland-based livestock systems. Previous UK policies aimed at increasing food security by improving productivity these regions led large of native grassland being cultivated and replaced sown pastures. Over time, grasses legumes that constituted mixes introduced have been unsown grass species, leading a decline performance. Advances plant breeding offer potential not only radically improve production efficiencies...
ABSTRACT DNA metabarcoding provides a scalable alternative to traditional botanical surveys, which are often time‐consuming and reliant on taxonomic expertise. Here, we compare with quadrat‐based surveys assess plant species composition in experimental grassland plots under four defoliation regimes (continuous grazing, rotational frequent cutting conservation cutting). Botanical identified 16 taxa, while detected 25 including the dominant Holcus lanatus Lolium perenne . Despite detecting...
Two experiments describe the ensiling potential of whole‐crop forage peas ( Pisum sativum ) and field beans Vicia faba ). In Experiment 1, (cv. Magnus) Mayo) were harvested at 10, 12 14 weeks after sowing, ensiled in 10 kg mini‐silos either untreated or treated with an inoculant Lactobacillus plantarum terms yield potential, optimum growth stage for harvesting occurred growth. contrast, delaying harvest until gave highest yields dry matter (DM) crude protein (CP). Changes crop maturity had...
An experiment was conducted to compare the nutritive value of a range ensiled forage legumes. Silages were prepared from late second‐cut lotus ( Lotus corniculatus ), first‐cut sainfoin Onobrychis viciifolia ) and both early red clover Trifolium pratense lucerne Medicago sativa ). Each experimental silage offered six Suffolk‐cross wether lambs, aged 10 months, housed in metabolism crates. Voluntary intakes dry matter ranged 71 81 g kg −1 liveweight 0·75 d . similar on lotus, late‐cut...
This paper examines renewable energy alternatives in developed countries: environmental mechanisms; future alternatives; green electricity marketing and its potential; pricing; limitations on the eve of open access. It discusses objectives restructuring; role resources planning forming long range policies; feasibility trading United States Australia; offers Canada; results pricing programs Europe States. The existing planned mechanisms to achieve benefits restructured markets are reviewed....
Abstract Farmland is a major land cover type in Europe and Africa provides habitat for numerous species. The severe decline farmland biodiversity of the last decades has been attributed to changes farming practices, organic low‐input are assumed mitigate detrimental effects agricultural intensification on biodiversity. Since farm enterprise primary unit decision making, management‐related at field scale need be assessed level. Therefore, this study, data were collected characteristics,...
Abstract To investigate the effect of red clover formononetin concentration on lamb growth rate and carcass characteristics, 20 lambs (10 ewe 10 wethers) were grazed each three forages : with a high (HF), low (LF) control perennial ryegrass. Animals finished at condition score 3L, which point half all animals slaughtered immediately, while other moved to common ryegrass plot for 3 weeks as 'withdrawal' period. Mean concentrations 0-0, 4-7 3-3 g/kg dry matter (DM) grass, HF LF swards...
Abstract The effects of offering ensiled red clover ( Trifolium pratense ), lucerne Medicago sativa pea Pisum sativum kale Brassica oleracea ) and hybrid ryegrass Lolium hybridicum on the productivity nutrient‐use efficiency lambs were investigated. Forages cut, wilted for 24 h as round bales. A hundred Suffolk‐cross lambs, aged 8 months, offered grass silage during a 5‐week standardization period then group‐housed 14 d ad libitum access to treatment silage. For measurement period, split...
To test the hypothesis that sheep live weight (LW) could be used to improve enteric methane (CH4) emission calculations, mature ewes of 4 different breeds representative UK industry were studied: Welsh Mountain, Scottish Blackface, Mule and Texel (n = 8 per breed). The housed offered ad libitum access fresh cut pasture three types, varying in digestibility: (a) a relatively high digestibility monoculture perennial ryegrass (Lolium perenne), (b) medium permanent comprising range grass...
Ruminant livestock turn forages and poor-quality feeds into human edible products, but enteric methane (CH4) emissions from ruminants are a significant contributor to greenhouse gases (GHGs) hence climate change. Despite the predominance of pasture-based beef production systems in many parts Europe there little data available regarding CH4 free-ranging grazing cattle. It is possible that differences physiology or behaviour could influence comparative intensities for traditional modern breed...
1. With changes in the agricultural policy for rural areas UK there is increased interest development of management protocols indigenous and sown swards upland Scotland based on grazing by ruminant species other than sheep cattle, e.g. goats, red deer South American camelids. 2. Here we describe diet composition over two seasons camelids (guanacos) three vegetation types typical ecosystems UK: a sward (Lolium perenne-dominated), an grassland (Nardus stricta-dominated) dwarf shrub...