Items where Author is "Orr, Robert"

Number of items: 131.
  • Livestock Performance for Sheep and Cattle Grazing Lowland Permanent Pasture: Benchmarking Potential of Forage-Based Systems. (2019) Orr, Robert, Griffith, Bruce, Rivero, M. Jordana, Lee, Michael
  • Creating productive diverse grassland for multi-ecosystem services: an example of agri-environment schemes policies driven by science in United Kingdom. (2018) Beaumont, Deborah, Griffith, Bruce, Dunn, Robert, Orr, Robert, Rivero, M. Jordana, Woodcock, B., Pywell, R., Tallowin, Jerry
  • Roles of instrumented farm-scale trials in trade-off assessments of pasture-based ruminant production systems. (2018) Takahashi, Taro, Harris, Paul, Blackwell, Martin, Cardenas, Laura, Collins, Adrian, Dungait, Jennifer, Hawkins, Jane, Misselbrook, Tom, Mcauliffe, Graham, McFadzean, Jamie, Murray, Phil, Orr, Robert, Rivero, M. Jordana, Wu, Lianhai, Lee, Michael
  • Data to calculate emissions intensity for individual beef cattle reared on pasture-based production systems. (2018) Mcauliffe, Graham, Takahashi, Taro, Orr, Robert, Harris, Paul, Lee, Michael
  • Reemplazo de una pradera permanente y su efecto en el primer año en una lechería comercial. (2018) Rivero, M. Jordana, Orr, Robert, Coumbe, J., Willson, B., Hood, Jess, Lee, Michael
  • Distributions of emissions intensity for individual beef cattle reared on pasture-based production systems. (2017) Mcauliffe, Graham, Takahashi, Taro, Orr, Robert, Harris, Paul, Lee, Michael
  • An evaluation of the hysteresis in chemical concentration–discharge (C–Q) relationships from drained, intensively managed grasslands in southwest England. (2017) Eludoyin, A. O., Griffith, B., Orr, Robert, Bol, Roland, Quine, T. A., Brazier, R. E. picture_as_pdf
  • The North Wyke Farm Platform: effect of temperate grassland farming systems on soil moisture contents, runoff and associated water quality dynamics. (2016) Orr, Robert, Murray, Phil, Eyles, C. J., Blackwell, Martin, Cardenas, Laura, Collins, Adrian, Dungait, Jennifer, Goulding, Keith, Griffith, Bruce, Gurr, S. J., Harris, Paul, Hawkins, Jane, Misselbrook, Tom, Rawlings, Chris, Shepherd, Anita, Sint, Hadewij, Takahashi, Taro, Tozer, K. N., Whitmore, Andy, Wu, Lu, Lee, Michael
  • Contextualized geographically weighted principal components analysis for investigating baseline soils data on the North Wyke Farm Platform. (2016) Harris, Paul, Howden, N. J. K., Peukert, S., Noacco, V., Ramezani, K., Tuominen, E., Eludoyin, B., Brazier, R., Shepherd, Anita, Griffith, Bruce, Orr, Robert, Murray, Phil picture_as_pdf
  • Data mining the North Wyke Farm Platform data sets. (2016) Harris, Paul, Griffith, Bruce, Sint, Hadewij, Cardenas, Laura, Dungait, Jennifer, Orr, Robert, Lee, Michael
  • Greenhouse gas emissions from a reseeded grassland on the North Wyke Farm Platform. (2016) Dunn, Robert, Boden, J., Misselbrook, Tom, Orr, Robert, Griffith, Bruce, Neale, J., Cardenas, Laura
  • Capturing the spatial variability of N2O emissions on grazed grasslands. (2015) Cardenas, Laura, Dunn, Robert, Shepherd, Anita, Misselbrook, Tom, Orr, Robert, Griffith, Bruce, Velazquez, A., Burak, E., Chen, K., Harris, Paul, Repullo, M., Collins, Adrian
  • The North Wyke Farm Platform, a UK national capability for research into sustainability of temperate agricultural grassland management: progress and developments. (2015) Harris, Paul, Dungait, Jennifer, Griffith, Bruce, Shepherd, Anita, Sint, Hadewij, Blackwell, Martin, Cardenas, Laura, Collins, Adrian, Goulding, Keith, Lee, Michael, Orr, Robert
  • Enhancing floral resources for pollinators in productive agricultural grasslands. (2014) Woodcock, B. A., Savage, J., Bullock, J. M., Nowakowski, M., Orr, Robert, Tallowin, J. R. B., Pywell, R. F. picture_as_pdf
  • Applications and issues of remote sensing by UAV to pasture agri-research on the North Wyke Farm Platform. (2014) Shepherd, Anita, Harris, Paul, Orr, Robert, Griffith, Bruce, Jarman, M.
  • Applications of high resolution remote sensing with spatial modelling for sustainable grassland agriculture. (2014) Shepherd, Anita, Harris, Paul, Orr, Robert, Griffith, Bruce, Murray, Phil
  • Beef productivity on the North Wyke Farm Platform in two baseline years. (2014) Thompson, J. B., Orr, Robert, Dungait, Jennifer, Murray, Phil, Lee, Michael
  • Effects of livestock breed and rearing experience on foraging behaviour of yearling beef cattle grazing unimproved grasslands. (2014) Orr, Robert, Tallowin, J. R. B., Griffith, Bruce, Rutter, S. M. picture_as_pdf
  • Geographically weighted principal components analysis for understanding spatial structure in data for sustainable grassland agriculture. (2014) Harris, Paul, Shepherd, Anita, Orr, Robert, Griffith, Bruce, Murray, Phil
  • The North Wyke Farm Platform, a national capability for research into sustainability of temperate agricultural grassland management: data and modelling opportunities. (2014) Harris, Paul, Griffith, Bruce, Shepherd, Anita, Peukert, S., Hawkins, Jane, Elyes, C., Whitmore, Andy, Blackwell, Martin, Brazier, R. E., Cardenas, Laura, Wu, Lu, Dungait, Jennifer, Collins, Adrian, Gurr, S. J., Murray, Phil, Goulding, Keith, Orr, Robert
  • Enhancing beetle and spider communities in agricultural grasslands: the roles of seed addition and habitat management. (2013) Woodcock, B. A., Savage, J., Bullock, J. M., Nowakowski, M., Orr, Robert, Tallowin, J. R. B., Pywell, R. F. picture_as_pdf
  • The North Wyke Farm Platform - a new National Capability for investigating sustainable intensification of livestock production. (2013) Murray, Phil, Griffith, Bruce, Orr, Robert, Peukert, S., Shepherd, Anita
  • The North Wyke Farm Platform: a new UK national capability for research into sustainability of agricultural temperate grassland management. (2013) Murray, Phil, Griffith, Bruce, Orr, Robert, Shepherd, Anita, Blackwell, Martin, Hawkins, Jane, Peukert, S.
  • North Wyke Farm Platform: methodologies used in the remote sensing of the quantity and quality of drainage water. (2013) Griffith, Bruce, Hawkins, Jane, Orr, Robert, Blackwell, Martin, Murray, Phil
  • Defaecation and urination behaviour in beef cattle grazing semi-natural grassland. (2012) Orr, Robert, Griffith, Bruce, Champion, R. A., Cook, J. E.
  • Foraging paths through vegetation patches for beef cattle in semi-natural pastures. (2012) Orr, Robert, Tozer, K. N., Griffith, Bruce, Champion, R. A., Cook, J. E., Rutter, S. M. picture_as_pdf
  • Improved understanding of solute concentration-discharge dynamics through state-of-the-art antecedent moisture content (AMC) monitoring and analysis. (2012) Eludoyin, A. O., Brazier, R., Quine, T., Bol, Roland, Orr, Robert, Griffith, Bruce
  • Designing and creating the North Wyke Farm Platform. (2011) Orr, Robert, Griffith, Bruce, Rose, S., Hatch, D. J., Hawkins, Jane, Murray, Phil
  • Ingestion and excretion of nitrogen and phosphorus by beef cattle under contrasting grazing intensities. (2011) Orr, Robert, Griffith, Bruce, Cook, J. E., Champion, R. A. picture_as_pdf
  • The North Wyke Farm Platform: a UK national capability for agri-environmental research. (2011) Hatch, D. J., Murray, Phil, Orr, Robert, Griffith, Bruce
  • Learning how to model ecosystem trade-offs at the farm scale. (2010) Pilgrim, E. S., Macleod, C. J. A., Beaumont, Deborah, Blackwell, Martin, Bol, Roland, Del Prado, A., Griffith, Bruce, Orr, Robert, Shepherd, Anita, Wu, Lu, Firbank, Les
  • Options for wide scale enhancement of grassland biodiversity under the Entry Level Scheme. (2010) Pywell, R. F., Woodcock, B. A., Orr, Robert, Tallowin, J. R. B., Mcewen, I., Nowakowski, M., Bullock, J. M.
  • Relationship of bite mass of cattle to sward structure of four temperate grasses in short-term grazing sessions. (2009) Soder, K. J., Sanderson, M. A., Gregorini, P., Orr, Robert, Rubano, M. D., Rook, A. J. picture_as_pdf
  • Use of a micro-sward technique for determining bite mass of four grass species in short-term tests. (2009) Soder, K. J., Orr, Robert, Rubano, M. D., Rook, A. J. picture_as_pdf
  • Optimising nutrient use efficiency in beef cattle grazing lowland semi-natural pastures. (2007) Orr, Robert
  • Communicating North Wyke research to others. (2006) Hopkins, A., Murray, Phil, Bristow, A. W., Orr, Robert, Laws, J. A.
  • Optimising nutrient use efficiency in beef cattle grazing lowland semi-natural pastures. (2006) Orr, Robert
  • Behavioural and community ecology: understanding mechanisms driving biodiversity in pasture-based systems. (2005) Rook, A. J., Tallowin, J. R. B., Rutter, S. M., Orr, Robert, Hopkins, A., Gibb, M. J.
  • Development of a micro-sward technique for determining intake characteristics of perennial ryegrass varieties. (2005) Orr, Robert, Young, K. L., Cook, J. E., Champion, R. A.
  • Intake characteristics of diploid and tetraploid perennial ryegrass varieties when grazed by Simmental x Holstein yearling heifers under rotational management. (2005) Orr, Robert, Cook, J. E., Young, K. L., Rook, A. J.
  • Intake characteristics of perennial ryegrass varieties when grazed by yearling beef cattle under rotational grazing management. (2005) Orr, Robert, Cook, J. E., Young, K. L., Champion, R. A., Rutter, S. M.
  • Optimising nutrient use efficiency in beef cattle grazing lowland semi-natural pastures. (2005) Orr, Robert
  • Dietary preference of dairy cows grazing ryegrass and white clover. (2004) Rutter, S. M., Orr, Robert, Yarrow, N. H., Champion, R. A.
  • Agronomic and nutritional qualities of grazed grass varieties: development of breeding tools and a new rapid-screening methodology. (2004) Orr, Robert
  • Bite dimensions and grazing movements by sheep and cattle grazing homogeneous perennial ryegrass swards. (2004) Rook, A. J., Harvey, A., Parsons, A. J., Orr, Robert, Rutter, S. M.
  • Changes in ingestive behaviour of yearling dairy heifers due to changes in sward state during grazing down of rotationally-stocked ryegrass or white clover pastures. (2004) Orr, Robert, Rutter, S. M., Yarrow, N. H., Champion, R. A., Rook, A. J.
  • Focus on IGER North Wyke. (2004) Rutter, S. M., Orr, Robert
  • Relationships between morphological and chemical characteristics of perennial ryegrass varieties and intake by sheep under continuous stocking management. (2004) Orr, Robert, Cook, J. E., Champion, R. A., Rook, A. J.
  • The effect of the spatial scale of heterogeneity of two herbage species on the grazing behaviour of lactating sheep. (2004) Champion, R. A., Orr, Robert, Penning, P. D., Rutter, S. M.
  • Agronomic and nutritional qualities of grazed grass varieties: development of breeding tools and a new rapid-screening methodology. (2003) Orr, Robert
  • Development of a sward box methodology for the rapid screening of bite mass in grass varieties intended for grazing. (2003) Young, K. L., Cook, J. E., Champion, R. A., Orr, Robert
  • Intake characteristics and plant traits for perennial ryegrass varieties grazed by sheep. (2003) Orr, Robert, Rook, A. J.
  • Intake characteristics of perennial ryegrass varieties when grazed by sheep under continuous stocking management. (2003) Orr, Robert, Cook, J. E., Champion, R. A., Penning, P. D., Rook, A. J. picture_as_pdf
  • Morphological, chemical and intake characteristics of grass varieties grazed by sheep under continuous stocking management. (2003) Cook, J. E., Champion, R. A., Orr, Robert
  • NIRS prediction of the intake characteristics of grass varieties continuously stocked with sheep. (2003) Lister, S. J., Orr, Robert
  • New methods for identification and evaluation of intake characteristics of grass varieties. (2003) Orr, Robert, Cook, J. E.
  • Effect of long-term changes in relative resource availability on dietary preference of sheep for perennial ryegrass and white clover. (2002) Rook, A. J., Harvey, A., Parsons, A. J., Penning, P. D., Orr, Robert picture_as_pdf
  • Ingestive behaviour of heifers grazing monocultures of ryegrass or white clover. (2002) Rutter, S. M., Orr, Robert, Penning, P. D., Yarrow, N. H., Champion, R. A.
  • Intake and dietary choices by grazing ruminants, effects of time of day and water soluble carbohydrate content in forage. (2002) Rook, A. J., Orr, Robert, Rutter, S. M., Moorby, J. M.
  • Evaluation of perennial ryegrass varieties under frequent cutting or continuous stocking with sheep. (2001) Orr, Robert, Martyn, T. M., Clements, R. O.
  • Fast maturing Charolais cross Holstein heifers come up trumps. (2001) Orr, Robert, Snaith, L.
  • Ingestive behaviour and management of animals at pasture. (2001) Gibb, M. J., Orr, Robert, Rutter, S. M., Huckle, C. A.
  • Intake characteristics and performance of contrasting grass varieties continuously stocked with sheep. (2001) Orr, Robert, Cook, J. E., Champion, R. A., Rook, A. J.
  • Intake rate during meals and meal duration for sheep in different hunger states, grazing grass or white clover swards. (2001) Orr, Robert, Penning, P. D., Rutter, S. M., Champion, R. A., Harvey, A., Rook, A. J.
  • Low-input heifer beef. (2001) Orr, Robert
  • Matching grass supply to grazing patterns for dairy cows. (2001) Orr, Robert, Rutter, S. M., Penning, P. D., Rook, A. J. picture_as_pdf
  • Practice into profit with low input dairy bred Charolais crosses. (2001) Orr, Robert, Snaith, L.
  • Preference for grass and clover by dairy cattle: is free choice important? (2001) Rutter, S. M., Nuthall, R., Champion, R. A., Orr, Robert, Rook, A. J.
  • Assessing grass variety performance under sheep grazing. (2000) Orr, Robert
  • Benefits from using clover. (2000) Orr, Robert, Newton, K.
  • Clover enriched herbage boosts margins. (2000) Orr, Robert, King, G.
  • Dietary preference for grass and white clover in sheep and cattle: an overview. (2000) Rutter, S. M., Orr, Robert
  • Dietary preference of sheep for perennial ryegrass and white clover at contrasting sward surface heights. (2000) Harvey, A., Parsons, A. J., Rook, A. J., Penning, P. D., Orr, Robert picture_as_pdf
  • Evaluation of herbage varieties under continuous stocking. (2000) Orr, Robert, Cook, J. E., Atkinson, L. D., Clements, R. O., Martyn, T. M.
  • Ingestive behaviour of dairy heifers grazing grass or white clover swards under rotational stocking management. (2000) Orr, Robert, Rutter, S. M., Penning, P. D., Yarrow, N. H., Champion, R. A., Rook, A. J.
  • Intake rate, grazing time and daily intake by sheep grazing perennial ryegrass varieties under continuous stocking management. (2000) Cook, J. E., Champion, R. A., Orr, Robert, Rook, A. J.
  • Key to low input production. (2000) Orr, Robert
  • Making a profit from grassland. (2000) Orr, Robert, Trewin, C.
  • Practice into profit: low-input heifer beef production. (2000) Yarrow, N. H., Orr, Robert, Shields, R. W.
  • A new approach to the evaluation of herbage varieties under grazing. (2000) Orr, Robert
  • How do cattle and sheep alter ingestive behaviour in response to changes in sward state? (1999) Penning, P. D., Orr, Robert, Parsons, A. J., Harvey, A.
  • Long-term dietary preference for grass and clover in dairy cows. (1999) Rutter, S. M., Orr, Robert, Yarrow, N. H., Champion, R. A., Atkinson, L. D., Cook, J. E.
  • Matching food supply to animals' natural meal patterns. (1999) Rook, A. J., Gibb, M. J., Orr, Robert
  • The assessment of quality - grazing and intake. (1999) Orr, Robert
  • Behavioural and physiological factors limiting intake by grazing ruminants. (1998) Penning, P. D., Gibb, M. J., Parsons, A. J., Orr, Robert, Harvey, A.
  • Costs of locomotive and ingestive behaviour by sheep grazing grass or clover monocultures or mixtures of the two species. (1998) Champion, R. A., Rutter, S. M., Orr, Robert, Penning, P. D.
  • Dietary preference of dairy cows grazing grass and clover. (1998) Rutter, S. M., Orr, Robert, Penning, P. D., Yarrow, N. H., Champion, R. A., Atkinson, L. D.
  • Efficient use of grazed herbage by dairy cows. (1998) Orr, Robert
  • Matching grass supply to grazing patterns for dairy cows under strip-grazing management. (1998) Orr, Robert, Rutter, S. M., Penning, P. D., Yarrow, N. H., Atkinson, L. D., Champion, R. A.
  • Movement patterns of sheep and cattle within and between continuous short-term grazing bouts. (1998) Harvey, A., Parsons, A. J., Orr, Robert, Rutter, S. M., Rook, A. J.
  • Techniques for measuring bite dimensions and movement patterns within and between grazing bouts for cattle and sheep. (1998) Harvey, A., Orr, Robert
  • Bite dimensions and grazing severity for cattle and sheep. (1997) Orr, Robert, Harvey, A., Kelly, C. L., Penning, P. D.
  • Diet preferences of adult sheep and goats grazing ryegrass and white clover. (1997) Penning, P. D., Newman, J. A., Parsons, A. J., Harvey, A., Orr, Robert picture_as_pdf
  • Dietary preferences of domestic ruminants. (1997) Rutter, S. M., Penning, P. D., Parsons, A. J., Harvey, A., Orr, Robert
  • Distinguishing bites and chews in recordings of the grazing jaw movements of cattle. (1997) Champion, R. A., Rutter, S. M., Orr, Robert
  • Diurnal patterns of intake rate by sheep grazing monocultures of ryegrass or white clover. (1997) Orr, Robert, Penning, P. D., Harvey, A., Champion, R. A.
  • Does supplementation with different feed types alter the preference by grazing ewes for grass and clover? (1997) Harvey, A., Orr, Robert, Penning, P. D.
  • Grazing behaviour of ruminants. (1997) Gibb, M. J., Orr, Robert
  • Rates of passage of digesta in sheep grazing grass or white clover. (1997) Kelly, C. L., Penning, P. D., Orr, Robert, Champion, R. A.
  • Sward state and ingestive behaviour by Friesian dairy heifers under rotational grazing. (1997) Orr, Robert, Rutter, S. M., Penning, P. D., Yarrow, N. H., Champion, R. A.
  • An algorithm for the automatic processing of recordings of foraging behaviour by cattle. (1997) Rutter, S. M., Penning, P. D., Rook, A. J., Orr, Robert, Gibb, M. J., Champion, R. A., Huckle, C. A.
  • Dietary preference of sheep for grass and clover at contrasting sward surface heights. (1996) Harvey, A., Orr, Robert
  • Effects of continuous stocking with sheep or goats on sward composition and animal production from a grass and white clover pasture. (1996) Penning, P. D., Johnson, R. H., Orr, Robert
  • Foraging behaviour of free ranging domestic ruminants. (1996) Rutter, S. M., Penning, P. D., Parsons, A. J., Harvey, A., Orr, Robert
  • Grazing behaviour and herbage intake rate by Friesian dairy heifers grazing ryegrass or white clover. (1996) Orr, Robert, Rutter, S. M., Penning, P. D., Yarrow, N. H., Champion, R. A.
  • Why can't dairy heifers graze clover quicker than grass? (1996) Rutter, S. M., Penning, P. D., Champion, R. A., Orr, Robert
  • The effects of grass nitrogen status on the preference by sheep grazing ryegrass and white clover. (1996) Harvey, A., Orr, Robert, Parsons, A. J., Penning, P. D., Vincent, J. F. V.
  • The effects of spatial aggregation of grass and clover swards grazed by sheep on diet and sward composition. (1996) Harvey, A., Orr, Robert
  • Dietary preference of heifers for grass or clover, with and without romensin slow-release anti-bloat boluses. (1995) Penning, P. D., Parsons, A. J., Orr, Robert, Harvey, A., Yarrow, N. H.
  • Herbage intake and N excretion by sheep grazing monocultures or a mixture of grass and white clover. (1995) Orr, Robert, Penning, P. D., Parsons, A. J., Champion, R. A.
  • Herbage intake rates and grazing behaviour of sheep and goats grazing grass or white clover. (1995) Penning, P. D., Orr, Robert, Parsons, A. J., Harvey, A., Newman, J. A.
  • Intake and behaviour responses by sheep, in different physiological states, when grazing monocultures of grass or white clover. (1995) Penning, P. D., Parsons, A. J., Orr, Robert, Harvey, A., Champion, R. A.
  • The preference of adult sheep and goats grazing ryegrass and white clover. (1995) Penning, P. D., Newman, J. A., Parsons, A. J., Harvey, A., Orr, Robert
  • The role of learning and experience in the development of dietary choice by sheep and goats. (1995) Orr, Robert, Penning, P. D., Parsons, A. J., Harvey, A., Newman, J. A.
  • Diet preference of sheep: effects of recent diet, physiological state and species abundance. (1994) Parsons, A. J., Newman, J. A., Penning, P. D., Harvey, A., Orr, Robert picture_as_pdf
  • Diurnal patterns of ingestive behaviour by sheep. (1994) Orr, Robert, Harvey, A., Champion, R. A.
  • Fasting affects intake behaviour and diet preference of grazing sheep. (1994) Newman, J. A., Penning, P. D., Parsons, A. J., Harvey, A., Orr, Robert picture_as_pdf
  • Intake and behaviour responses by sheep to changes in sward characteristics under rotational grazing. (1994) Penning, P. D., Parsons, A. J., Orr, Robert, Hooper, J. E.
  • Intake behaviour and production responses by sheep, in different physiological states, grazing monocultures of grass or white clover. (1994) Penning, P. D., Parsons, A. J., Orr, Robert, Harvey, A.
  • The effect of concentrate level on the intakes of silages or hays by ewes in the first month of lactation. (1994) Orr, Robert, Treacher, T. T.
  • Dietary preferences of sheep and goats. (1993) Penning, P. D., Parsons, A. J., Harvey, A., Orr, Robert
  • Effects of some factors on insensible weight loss in grazing sheep. (1993) Dumont, B., Penning, P. D., Orr, Robert, D'Hour, P.
  • Factors controlling meal length and herbage intake rate by grazing sheep. (1993) Penning, P. D., Orr, Robert, Parsons, A. J., Rutter, S. M.
  • The effects of group size on grazing time in sheep. (1993) Penning, P. D., Parsons, A. J., Newman, J. A., Orr, Robert, Harvey, A. picture_as_pdf
  • Intake and behaviour responses by sheep to changes in sward characteristics under continuous stocking. (1991) Penning, P. D., Parsons, A. J., Orr, Robert, Treacher, T. T.
  • Micrometeorological studies of ammonia emission from sheep grazed swards. (1991) Jarvis, S. C., Hatch, D. J., Orr, Robert, Reynolds, S. E. picture_as_pdf
  • Patterns of ingestive behaviour of sheep continuously stocked on monocultures of ryegrass or white clover. (1991) Penning, P. D., Rook, A. J., Orr, Robert
  • Uptake, cycling and fate of nitrogen in grass-clover swards continuously grazed by sheep. (1991) Parsons, A. J., Orr, Robert, Penning, P. D., Lockyer, D. R. picture_as_pdf
  • Intakes of silages, hays or straws by ewes in mid pregnancy. (1990) Orr, Robert, Treacher, T. T.
  • Sward composition, animal performance and the potential production of grass/white clover swards continuously stocked with sheep. (1990) Orr, Robert, Parsons, A. J., Penning, P. D., Treacher, T. T.
  • The performance of ewes offered diets containing different proportions of perennial ryegrass and white clover silage in late pregnancy. (1990) Orr, Robert, Treacher, T. T.