A new approach to the evaluation of herbage varieties under grazing
D1 - Technical reports: non-confidential
Orr, R. J. 2000. A new approach to the evaluation of herbage varieties under grazing.
| Authors | Orr, R. J. |
|---|---|
| Type | D1 - Technical reports: non-confidential |
| Year of Publication | 2000 |
| Funder project or code | Behavioural and Community Ecology (BCE) |
| Project: 2420 5128 | |
| Project: LS 1604 | |
| Series | MAFF Final Report |
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Pilgrim, E. S., Macleod, C. J. A., Beaumont, D. A., Blackwell, M. S. A., Bol, R., Del Prado, A., Griffith, B. A., Orr, R. J., Shepherd, A., Wu, L. and Firbank, L. G. 2010. Learning how to model ecosystem trade-offs at the farm scale. Yang, W., Filatova, T., Rizzoli, A., Voinov, A. A. and Swayne, D. A. (ed.) Proceedings International Environmental Modelling and Software Society (iEMSs) 2010 International Congress on Environmental Modelling and Software Modelling for Environment's Sake, Ottawa, 5-8 July 2010 . IEMSS. pp. 8pp
Relationship of bite mass of cattle to sward structure of four temperate grasses in short-term grazing sessions
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Soder, K. J., Sanderson, M. A., Gregorini, P., Orr, R. J., Rubano, M. D. and Rook, A. J. 2009. Relationship of bite mass of cattle to sward structure of four temperate grasses in short-term grazing sessions. Grass and Forage Science. 64, pp. 421-431. https://doi.org/10.1111/j.1365-2494.2009.00710.x
Use of a micro-sward technique for determining bite mass of four grass species in short-term tests
A - Papers appearing in refereed journals
Soder, K. J., Orr, R. J., Rubano, M. D. and Rook, A. J. 2009. Use of a micro-sward technique for determining bite mass of four grass species in short-term tests. Euphytica. 168, pp. 135-143. https://doi.org/10.1007/s10681-009-9907-6
Optimising nutrient use efficiency in beef cattle grazing lowland semi-natural pastures
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Orr, R. J. 2007. Optimising nutrient use efficiency in beef cattle grazing lowland semi-natural pastures.
Optimising nutrient use efficiency in beef cattle grazing lowland semi-natural pastures
D1 - Technical reports: non-confidential
Orr, R. J. 2006. Optimising nutrient use efficiency in beef cattle grazing lowland semi-natural pastures.
Communicating North Wyke research to others
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Hopkins, A., Murray, P. J., Bristow, A. W., Orr, R. J. and Laws, J. A. 2006. Communicating North Wyke research to others. IGER Innovations. 10, pp. 66-70.
Optimising nutrient use efficiency in beef cattle grazing lowland semi-natural pastures
D1 - Technical reports: non-confidential
Orr, R. J. 2005. Optimising nutrient use efficiency in beef cattle grazing lowland semi-natural pastures.
Behavioural and community ecology: understanding mechanisms driving biodiversity in pasture-based systems
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Rook, A. J., Tallowin, J. R. B., Rutter, S. M., Orr, R. J., Hopkins, A. and Gibb, M. J. 2005. Behavioural and community ecology: understanding mechanisms driving biodiversity in pasture-based systems. IGER Innovations. 9, pp. 54-57.
Intake characteristics of diploid and tetraploid perennial ryegrass varieties when grazed by Simmental x Holstein yearling heifers under rotational management
C1 - Edited contributions to conferences/learned societies
Orr, R. J., Cook, J. E., Young, K. L. and Rook, A. J. 2005. Intake characteristics of diploid and tetraploid perennial ryegrass varieties when grazed by Simmental x Holstein yearling heifers under rotational management. Murphy, J. J. (ed.) International Grassland Congress Satellite Workshop, Cork, 3-6 July 2005. pp. p151
Intake characteristics of perennial ryegrass varieties when grazed by yearling beef cattle under rotational grazing management
A - Papers appearing in refereed journals
Orr, R. J., Cook, J. E., Young, K. L., Champion, R. A. and Rutter, S. M. 2005. Intake characteristics of perennial ryegrass varieties when grazed by yearling beef cattle under rotational grazing management. Grass and Forage Science. 60 (2), pp. 157-167. https://doi.org/10.1111/j.1365-2494.2005.00463.x
Development of a micro-sward technique for determining intake characteristics of perennial ryegrass varieties
A - Papers appearing in refereed journals
Orr, R. J., Young, K. L., Cook, J. E. and Champion, R. A. 2005. Development of a micro-sward technique for determining intake characteristics of perennial ryegrass varieties. Euphytica. 141 (1-2), pp. 65-73. https://doi.org/10.1007/s10681-005-5365-y
Agronomic and nutritional qualities of grazed grass varieties: development of breeding tools and a new rapid-screening methodology
D1 - Technical reports: non-confidential
Orr, R. J. 2004. Agronomic and nutritional qualities of grazed grass varieties: development of breeding tools and a new rapid-screening methodology.
Focus on IGER North Wyke
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Rutter, S. M. and Orr, R. J. 2004. Focus on IGER North Wyke. Grass Farmer . Autumn, pp. 4-6.
Bite dimensions and grazing movements by sheep and cattle grazing homogeneous perennial ryegrass swards
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Rook, A. J., Harvey, A., Parsons, A. J., Orr, R. J. and Rutter, S. M. 2004. Bite dimensions and grazing movements by sheep and cattle grazing homogeneous perennial ryegrass swards . Applied Animal Behaviour Science. 88 (3-4), pp. 227-242. https://doi.org/10.1016/j.applanim.2004.03.006
Relationships between morphological and chemical characteristics of perennial ryegrass varieties and intake by sheep under continuous stocking management
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Orr, R. J., Cook, J. E., Champion, R. A. and Rook, A. J. 2004. Relationships between morphological and chemical characteristics of perennial ryegrass varieties and intake by sheep under continuous stocking management. Grass and Forage Science. 59 (4), pp. 389-398. https://doi.org/10.1111/j.1365-2494.2004.00440.x
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A - Papers appearing in refereed journals
Rutter, S. M., Orr, R. J., Yarrow, N. H. and Champion, R. A. 2004. Dietary preference of dairy cows grazing ryegrass and white clover. Journal of Dairy Science. 87 (5), pp. 1317-1324. https://doi.org/10.3168/jds.S0022-0302(04)73281-6
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
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Orr, R. J., Rutter, S. M., Yarrow, N. H., Champion, R. A. and Rook, A. J. 2004. 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 . Applied Animal Behaviour Science. 87 (3-4), pp. 205-222. https://doi.org/10.1016/j.applanim.2004.01.009
Intake characteristics and plant traits for perennial ryegrass varieties grazed by sheep
C1 - Edited contributions to conferences/learned societies
Orr, R. J. and Rook, A. J. 2003. Intake characteristics and plant traits for perennial ryegrass varieties grazed by sheep. Proceedings 'Crop Quality: Its role in sustainable livestock production', Association of Applied Biologists Conference, Manchester, 15-16 December 2003.
Agronomic and nutritional qualities of grazed grass varieties: development of breeding tools and a new rapid-screening methodology
D1 - Technical reports: non-confidential
Orr, R. J. 2003. Agronomic and nutritional qualities of grazed grass varieties: development of breeding tools and a new rapid-screening methodology.
NIRS prediction of the intake characteristics of grass varieties continuously stocked with sheep
C1 - Edited contributions to conferences/learned societies
Lister, S. J. and Orr, R. J. 2003. NIRS prediction of the intake characteristics of grass varieties continuously stocked with sheep. 7th British Grassland Society (BGS) Research Conference, Aberystwyth, 1-3 September 2003. pp. 67-68
New methods for identification and evaluation of intake characteristics of grass varieties
G - Articles in popular magazines and other technical publications
Orr, R. J. and Cook, J. E. 2003. New methods for identification and evaluation of intake characteristics of grass varieties. IGER Innovations. 7, pp. 30-33.
Development of a sward box methodology for the rapid screening of bite mass in grass varieties intended for grazing
C1 - Edited contributions to conferences/learned societies
Young, K. L., Cook, J. E., Champion, R. A. and Orr, R. J. 2003. Development of a sward box methodology for the rapid screening of bite mass in grass varieties intended for grazing. BGS Organising Committee (ed.) Proceedings 7th British Grassland Society (BGS) Research Meeting, Aberystwyth, UK, 1-3 September 2003. pp. 73-74
Morphological, chemical and intake characteristics of grass varieties grazed by sheep under continuous stocking management
C1 - Edited contributions to conferences/learned societies
Cook, J. E., Champion, R. A. and Orr, R. J. 2003. Morphological, chemical and intake characteristics of grass varieties grazed by sheep under continuous stocking management. BGS Organising Committee (ed.) Proceedings 7th British Grassland Society (BGS) Research Conference, Aberystwyth, UK, 1-3 September 2003. pp. 21-22
Intake characteristics of perennial ryegrass varieties when grazed by sheep under continuous stocking management.
A - Papers appearing in refereed journals
Orr, R. J., Cook, J. E., Champion, R. A., Penning, P. D. and Rook, A. J. 2003. Intake characteristics of perennial ryegrass varieties when grazed by sheep under continuous stocking management. Euphytica. 134 (3), pp. 247-260. https://doi.org/10.1023/B:EUPH.0000004949.49050.78
Intake and dietary choices by grazing ruminants, effects of time of day and water soluble carbohydrate content in forage
C2 - Non-edited contributions to conferences
Rook, A. J., Orr, R. J., Rutter, S. M. and Moorby, J. M. 2002. Intake and dietary choices by grazing ruminants, effects of time of day and water soluble carbohydrate content in forage. American Society of Agronomy Annual Meeting, Indianapolis, Nov 11-14 2002.
Ingestive behaviour of heifers grazing monocultures of ryegrass or white clover
A - Papers appearing in refereed journals
Rutter, S. M., Orr, R. J., Penning, P. D., Yarrow, N. H. and Champion, R. A. 2002. Ingestive behaviour of heifers grazing monocultures of ryegrass or white clover. Applied Animal Behaviour Science. 76 (1), pp. 1-9. https://doi.org/10.1016/S0168-1591(01)00205-2
Effect of long-term changes in relative resource availability on dietary preference of sheep for perennial ryegrass and white clover
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Rook, A. J., Harvey, A., Parsons, A. J., Penning, P. D. and Orr, R. J. 2002. Effect of long-term changes in relative resource availability on dietary preference of sheep for perennial ryegrass and white clover. Grass and Forage Science. 57 (1), pp. 54-60. https://doi.org/10.1046/j.1365-2494.2002.00301.x
Ingestive behaviour and management of animals at pasture
C1 - Edited contributions to conferences/learned societies
Gibb, M. J., Orr, R. J., Rutter, S. M. and Huckle, C. A. 2001. Ingestive behaviour and management of animals at pasture. Wade, M. H. (ed.) Manejo del Pastoreo. Meeting of the Argentinean Association of Animal Production, Universidad Nacional de Lujan, Argentina, November 2001.
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A - Papers appearing in refereed journals
Orr, R. J., Martyn, T. M. and Clements, R. O. 2001. Evaluation of perennial ryegrass varieties under frequent cutting or continuous stocking with sheep. International Journal of Plant Varieties and Seeds. 14, pp. 181-199.
Low-input heifer beef
G - Articles in popular magazines and other technical publications
Orr, R. J. 2001. Low-input heifer beef. Mole Livestock Initiative Update. 2 (July), p. p2.
Fast maturing Charolais cross Holstein heifers come up trumps
G - Articles in popular magazines and other technical publications
Orr, R. J. and Snaith, L. 2001. Fast maturing Charolais cross Holstein heifers come up trumps. Farmers Guardian. (6 April), p. p1.
Practice into profit with low input dairy bred Charolais crosses
G - Articles in popular magazines and other technical publications
Orr, R. J. and Snaith, L. 2001. Practice into profit with low input dairy bred Charolais crosses. (6).
Preference for grass and clover by dairy cattle: is free choice important?
C1 - Edited contributions to conferences/learned societies
Rutter, S. M., Nuthall, R., Champion, R. A., Orr, R. J. and Rook, A. J. 2001. Preference for grass and clover by dairy cattle: is free choice important? Garner, J. P., Mench, J. A. and Heekin, S. P. (ed.) 35th International Congress of the International Society for Applied Ethology (ISAE), Davis, California, USA, 4-8 August 2001. pp. 039
Intake rate during meals and meal duration for sheep in different hunger states, grazing grass or white clover swards
A - Papers appearing in refereed journals
Orr, R. J., Penning, P. D., Rutter, S. M., Champion, R. A., Harvey, A. and Rook, A. J. 2001. Intake rate during meals and meal duration for sheep in different hunger states, grazing grass or white clover swards. Applied Animal Behaviour Science. 75, pp. 33-45. https://doi.org/10.1016/S0168-1591(01)00176-9
Intake characteristics and performance of contrasting grass varieties continuously stocked with sheep
C1 - Edited contributions to conferences/learned societies
Orr, R. J., Cook, J. E., Champion, R. A. and Rook, A. J. 2001. Intake characteristics and performance of contrasting grass varieties continuously stocked with sheep. Gomide, J. A., Mattos, W. R. S. and Carneiro da Silva, S. (ed.) Grassland Ecosystems: an Outlook into the 21st Century. Proceedings 19th International Grassland Congress, Sao Paulo, Brazil, 10-21 February 2001. Theme 13: Plant Improvement. pp. 529-530
Matching grass supply to grazing patterns for dairy cows
A - Papers appearing in refereed journals
Orr, R. J., Rutter, S. M., Penning, P. D. and Rook, A. J. 2001. Matching grass supply to grazing patterns for dairy cows. Grass and Forage Science. 56 (4), pp. 352-361. https://doi.org/10.1046/j.1365-2494.2001.00284.x
Making a profit from grassland
G - Articles in popular magazines and other technical publications
Orr, R. J. and Trewin, C. 2000. Making a profit from grassland. Western Morning News (Devon). (26 July).
Clover enriched herbage boosts margins
G - Articles in popular magazines and other technical publications
Orr, R. J. and King, G. 2000. Clover enriched herbage boosts margins. Farming News. (20 July), p. p19.
Benefits from using clover
G - Articles in popular magazines and other technical publications
Orr, R. J. and Newton, K. 2000. Benefits from using clover. Farmers Guardian. (4 August), p. p11.
Assessing grass variety performance under sheep grazing
G - Articles in popular magazines and other technical publications
Orr, R. J. 2000. Assessing grass variety performance under sheep grazing. Sheep Dairy News - Journal of the Sheep Dairying Association. 17, pp. 15-18.
Key to low input production
G - Articles in popular magazines and other technical publications
Orr, R. J. 2000. Key to low input production. Beef Farmer. Summer, pp. 26-28.
Practice into profit: low-input heifer beef production
C1 - Edited contributions to conferences/learned societies
Yarrow, N. H., Orr, R. J. and Shields, R. W. 2000. Practice into profit: low-input heifer beef production. Pullar, D. (ed.) Beef from Grass and Forage. British Grassland Society, Winter Meeting, Stafford, November 2000. British Grassland Society Occasional Symposium, 35. pp. 173-174
Ingestive behaviour of dairy heifers grazing grass or white clover swards under rotational stocking management
C2 - Non-edited contributions to conferences
Orr, R. J., Rutter, S. M., Penning, P. D., Yarrow, N. H., Champion, R. A. and Rook, A. J. 2000. Ingestive behaviour of dairy heifers grazing grass or white clover swards under rotational stocking management. Proceedings 6th British Grassland Society Research Conference, Aberdeen, 11-13 September 2000. pp. 41-42
Evaluation of herbage varieties under continuous stocking
C1 - Edited contributions to conferences/learned societies
Orr, R. J., Cook, J. E., Atkinson, L. D., Clements, R. O. and Martyn, T. M. 2000. Evaluation of herbage varieties under continuous stocking. Rook, A. J. and Penning, P. D. (ed.) Grazing Management: the Principles and Practice of Grazing, for Profit and Environmental Gain, within Temperate Grassland Systems. British Grassland Society (BGS) Occasional Symposium, 34, Harrogate, 29 February - 2 March 2000. British Grassland Society (BGS) Hurley. pp. 39-44
Intake rate, grazing time and daily intake by sheep grazing perennial ryegrass varieties under continuous stocking management
C2 - Non-edited contributions to conferences
Cook, J. E., Champion, R. A., Orr, R. J. and Rook, A. J. 2000. Intake rate, grazing time and daily intake by sheep grazing perennial ryegrass varieties under continuous stocking management. Proceedings 6th British Grassland Society Research Conference, Aberdeen, 11-13 September 2000. pp. 67-68
Dietary preference for grass and white clover in sheep and cattle: an overview
C1 - Edited contributions to conferences/learned societies
Rutter, S. M. and Orr, R. J. 2000. Dietary preference for grass and white clover in sheep and cattle: an overview. Rook, A. J. and Penning, P. D. (ed.) Grazing Management: the Principles and Practice of Grazing, for Profit and Environmental Gain, within Temperate Grassland Systems. British Grassland Society (BGS) Occasional Symposium, 34, Harrogate, 29 February - 2 March 2000. British Grassland Society (BGS) Hurley. pp. 73-78
Dietary preference of sheep for perennial ryegrass and white clover at contrasting sward surface heights
A - Papers appearing in refereed journals
Harvey, A., Parsons, A. J., Rook, A. J., Penning, P. D. and Orr, R. J. 2000. Dietary preference of sheep for perennial ryegrass and white clover at contrasting sward surface heights. Grass and Forage Science. 55 (3), pp. 242-252. https://doi.org/10.1046/j.1365-2494.2000.00222.x
The assessment of quality - grazing and intake
C2 - Non-edited contributions to conferences
Orr, R. J. 1999. The assessment of quality - grazing and intake. Novel Material and the Assessment of Quality, Quality Feeds Theme Development Group Workshop IGER, Aberystwyth, 12 January 1999.
Matching food supply to animals' natural meal patterns
C2 - Non-edited contributions to conferences
Rook, A. J., Gibb, M. J. and Orr, R. J. 1999. Matching food supply to animals' natural meal patterns. Fifth International Symposium on the Nutrition of Herbivores, San Antonio, Texas, USA, 11-16 April 1999.
Long-term dietary preference for grass and clover in dairy cows
C2 - Non-edited contributions to conferences
Rutter, S. M., Orr, R. J., Yarrow, N. H., Champion, R. A., Atkinson, L. D. and Cook, J. E. 1999. Long-term dietary preference for grass and clover in dairy cows. Fifth International Symposium on the Nutrition of Herbivores, San Antonio, Texas, USA, 11-16 April 1999.
How do cattle and sheep alter ingestive behaviour in response to changes in sward state?
C1 - Edited contributions to conferences/learned societies
Penning, P. D., Orr, R. J., Parsons, A. J. and Harvey, A. 1999. How do cattle and sheep alter ingestive behaviour in response to changes in sward state? Buchanan-Smith, J. G., Bailey, L. D. and McCaughey, P. (ed.) Grasslands 2000, Proceedings of the XVIII International Grassland Congress, Winnipeg, Manitoba, Saskatoon, Saskatchewan, Canada, 8-17 June 1997 (Vol 1). Canadian Forage Council, Can Soc Agron, Can Soc Anim Sci.
Efficient use of grazed herbage by dairy cows
D1 - Technical reports: non-confidential
Orr, R. J. 1998. Efficient use of grazed herbage by dairy cows. Institute of Grassland and Environmental Research IGER, North Wyke Okehampton.
Techniques for measuring bite dimensions and movement patterns within and between grazing bouts for cattle and sheep
C1 - Edited contributions to conferences/learned societies
Harvey, A. and Orr, R. J. 1998. Techniques for measuring bite dimensions and movement patterns within and between grazing bouts for cattle and sheep. Gibb, M. J. (ed.) Techniques for Investigating Intake and Ingestive Behaviour by Farm Animals, Proceedings of the Ninth European Intake Workshop, IGER North Wyke, UK, 18-20 November 1998. Institute of Grassland and Environmental Research, IGER, Aberystwyth. pp. 79-80
Movement patterns of sheep and cattle within and between continuous short-term grazing bouts
C1 - Edited contributions to conferences/learned societies
Harvey, A., Parsons, A. J., Orr, R. J., Rutter, S. M. and Rook, A. J. 1998. Movement patterns of sheep and cattle within and between continuous short-term grazing bouts. Veissier, I. and Boissy, A. (ed.) Proceedings of the 32nd International Congress of the International Society of Applied Ethology (ISAE), Clermont-Ferrand, France, 21-25 July 1998.
Matching grass supply to grazing patterns for dairy cows under strip-grazing management
C2 - Non-edited contributions to conferences
Orr, R. J., Rutter, S. M., Penning, P. D., Yarrow, N. H., Atkinson, L. D. and Champion, R. A. 1998. Matching grass supply to grazing patterns for dairy cows under strip-grazing management. Proceedings of the British Society of Animal Science Winter Meeting, Scarborough, UK, 23-25 March 1998. BSAS, Penicuik, UK. pp. 49
Dietary preference of dairy cows grazing grass and clover
C2 - Non-edited contributions to conferences
Rutter, S. M., Orr, R. J., Penning, P. D., Yarrow, N. H., Champion, R. A. and Atkinson, L. D. 1998. Dietary preference of dairy cows grazing grass and clover. Proceedings of the British Society of Animal Science Winter Meeting, Scarborough, UK, 23-25 March 1998. BSAS, Penicuik, UK. pp. 51
Costs of locomotive and ingestive behaviour by sheep grazing grass or clover monocultures or mixtures of the two species
C1 - Edited contributions to conferences/learned societies
Champion, R. A., Rutter, S. M., Orr, R. J. and Penning, P. D. 1998. Costs of locomotive and ingestive behaviour by sheep grazing grass or clover monocultures or mixtures of the two species. Veissier, I. and Boissy, A. (ed.) Proceedings of the 32nd International Congress of the International Society of Applied Ethology (ISAE), Clermont-Ferrand, France, 21-25 July 1998.
Behavioural and physiological factors limiting intake by grazing ruminants
C1 - Edited contributions to conferences/learned societies
Penning, P. D., Gibb, M. J., Parsons, A. J., Orr, R. J. and Harvey, A. 1998. Behavioural and physiological factors limiting intake by grazing ruminants. Keane, M. G. and O'Riordan, E. (ed.) Extensification of Beef and Sheep Production on Grasslands, Proceedings of Pasture Ecology and Animal Intake Groups Joint Meeting, St Patrick's College, Drumcondra, Dublin, Ireland, 24-25 September 1996. pp. 10-20
Sward state and ingestive behaviour by Friesian dairy heifers under rotational grazing
C2 - Non-edited contributions to conferences
Orr, R. J., Rutter, S. M., Penning, P. D., Yarrow, N. H. and Champion, R. A. 1997. Sward state and ingestive behaviour by Friesian dairy heifers under rotational grazing. British Grassland Society (BGS) Fifth Research Conference, Seale Hayne Faculty of Agriculture Food & Land Use, University of Plymouth, Newton Abbot, Devon, 8-10 September 1997. British Grassland Society (BGS) Hurley. pp. 51-52
Rates of passage of digesta in sheep grazing grass or white clover
C2 - Non-edited contributions to conferences
Kelly, C. L., Penning, P. D., Orr, R. J. and Champion, R. A. 1997. Rates of passage of digesta in sheep grazing grass or white clover. British Grassland Society (BGS) Fifth Research Conference, Seale Hayne Faculty of Agriculture Food & Land Use, University of Plymouth, Newton Abbot, Devon, 8-10 September 1997. British Grassland Society (BGS) Hurley. pp. 181-182
Grazing behaviour of ruminants
G - Articles in popular magazines and other technical publications
Gibb, M. J. and Orr, R. J. 1997. Grazing behaviour of ruminants. IGER Innovations. 1, pp. 54-57.
Does supplementation with different feed types alter the preference by grazing ewes for grass and clover?
C2 - Non-edited contributions to conferences
Harvey, A., Orr, R. J. and Penning, P. D. 1997. Does supplementation with different feed types alter the preference by grazing ewes for grass and clover? British Grassland Society (BGS) Fifth Research Conference, Seale Hayne Faculty of Agriculture Food & Land Use, University of Plymouth, Newton Abbot, Devon, 8-10 September 1997. British Grassland Society (BGS) Hurley. pp. 177-178
Diurnal patterns of intake rate by sheep grazing monocultures of ryegrass or white clover
A - Papers appearing in refereed journals
Orr, R. J., Penning, P. D., Harvey, A. and Champion, R. A. 1997. Diurnal patterns of intake rate by sheep grazing monocultures of ryegrass or white clover. Applied Animal Behaviour Science. 52, pp. 65-77.
Distinguishing bites and chews in recordings of the grazing jaw movements of cattle
C2 - Non-edited contributions to conferences
Champion, R. A., Rutter, S. M. and Orr, R. J. 1997. Distinguishing bites and chews in recordings of the grazing jaw movements of cattle. British Grassland Society (BGS) Fifth Research Conference, Seale Hayne Faculty of Agriculture Food & Land Use, University of Plymouth, Newton Abbot, Devon, 8-10 September 1997. British Grassland Society (BGS) Hurley. pp. 171-172
Dietary preferences of domestic ruminants
C1 - Edited contributions to conferences/learned societies
Rutter, S. M., Penning, P. D., Parsons, A. J., Harvey, A. and Orr, R. J. 1997. Dietary preferences of domestic ruminants. Forbes, J. M., Lawrence, T. L. J., Rodway, R. G. and Varley, M. A. (ed.) Animal Choices, British Society of Animal Science Occasional Publication No 20. BSAS, Edinburgh. pp. 96-97
Diet preferences of adult sheep and goats grazing ryegrass and white clover
A - Papers appearing in refereed journals
Penning, P. D., Newman, J. A., Parsons, A. J., Harvey, A. and Orr, R. J. 1997. Diet preferences of adult sheep and goats grazing ryegrass and white clover. Small Ruminant Research. 24, pp. 175-184. https://doi.org/10.1051/animres:19950583
Bite dimensions and grazing severity for cattle and sheep
C2 - Non-edited contributions to conferences
Orr, R. J., Harvey, A., Kelly, C. L. and Penning, P. D. 1997. Bite dimensions and grazing severity for cattle and sheep. British Grassland Society (BGS) Fifth Research Conference, Seale Hayne Faculty of Agriculture Food & Land Use, University of Plymouth, Newton Abbot, Devon, 8-10 September 1997. British Grassland Society (BGS) Hurley. pp. 185-186
An algorithm for the automatic processing of recordings of foraging behaviour by cattle
C1 - Edited contributions to conferences/learned societies
Rutter, S. M., Penning, P. D., Rook, A. J., Orr, R. J., Gibb, M. J., Champion, R. A. and Huckle, C. A. 1997. An algorithm for the automatic processing of recordings of foraging behaviour by cattle. Hemsworth, P. and Spinka, M. (ed.) Proceedings of the 31st International Congress of the International Society for Applied Ethology, Prague, Czech Republic, 13-16 August 1997. pp. 216
Foraging behaviour of free ranging domestic ruminants
C1 - Edited contributions to conferences/learned societies
Rutter, S. M., Penning, P. D., Parsons, A. J., Harvey, A. and Orr, R. J. 1996. Foraging behaviour of free ranging domestic ruminants. Mini-symposium on diet selection in animals and man, Grassmere, Cumbria, 1-4 July 1996.
Why can't dairy heifers graze clover quicker than grass?
C1 - Edited contributions to conferences/learned societies
Rutter, S. M., Penning, P. D., Champion, R. A. and Orr, R. J. 1996. Why can't dairy heifers graze clover quicker than grass? Duncan, I. J. H., Widowski, T. M. and Haley, D. B. (ed.) Proceedings of the 30th International Congress of the International Society of Applied Ethology (ISAE), Col K L Campbell Centre for the Study of Animal Welfare, Guelph, Ontario, Canada, 14-17 August 1996. University of Guelph, Centre for the Study of Animal Welfare. pp. 134
The effects of spatial aggregation of grass and clover swards grazed by sheep on diet and sward composition
C2 - Non-edited contributions to conferences
Harvey, A. and Orr, R. J. 1996. The effects of spatial aggregation of grass and clover swards grazed by sheep on diet and sward composition. Proceedings of the British Society of Animal Science 112th Meeting, Scarborough, 18-20 March 1996.
The effects of grass nitrogen status on the preference by sheep grazing ryegrass and white clover
B - Book chapters etc edited externally
Harvey, A., Orr, R. J., Parsons, A. J., Penning, P. D. and Vincent, J. F. V. 1996. The effects of grass nitrogen status on the preference by sheep grazing ryegrass and white clover. in: Younie, D. (ed.) Legumes in Sustainable Farming Systems, British Grassland Society Occasional Symposium No 30 (Proceedings of joint conference of BGS and SFS Initiative, SAC, Craibstone, Aberdeen, 2-4 September 1996) British Grassland Society (BGS) Hurley. pp. 227-229
Grazing behaviour and herbage intake rate by Friesian dairy heifers grazing ryegrass or white clover
B - Book chapters etc edited externally
Orr, R. J., Rutter, S. M., Penning, P. D., Yarrow, N. H. and Champion, R. A. 1996. Grazing behaviour and herbage intake rate by Friesian dairy heifers grazing ryegrass or white clover. in: Younie, D. (ed.) Legumes in Sustainable Farming Systems, British Grassland Society Occasional Symposium No 30 (Proceedings of joint conference of BGS and SFS Initiative, SAC, Craibstone, Aberdeen, 2-4 September 1996) British Grassland Society (BGS) Hurley. pp. 221-224
Effects of continuous stocking with sheep or goats on sward composition and animal production from a grass and white clover pasture
A - Papers appearing in refereed journals
Penning, P. D., Johnson, R. H. and Orr, R. J. 1996. Effects of continuous stocking with sheep or goats on sward composition and animal production from a grass and white clover pasture. Small Ruminant Research. 21, pp. 19-29.
Dietary preference of sheep for grass and clover at contrasting sward surface heights
C2 - Non-edited contributions to conferences
Harvey, A. and Orr, R. J. 1996. Dietary preference of sheep for grass and clover at contrasting sward surface heights. Proceedings of the British Society of Animal Science 112th Meeting, Scarborough, 18-20 March 1996.
The role of learning and experience in the development of dietary choice by sheep and goats
C1 - Edited contributions to conferences/learned societies
Orr, R. J., Penning, P. D., Parsons, A. J., Harvey, A. and Newman, J. A. 1995. The role of learning and experience in the development of dietary choice by sheep and goats. Fourth International Symposium on the Nutrition of Herbivores, 11-15 September 1995, Clermont-Ferrand, France.
The preference of adult sheep and goats grazing ryegrass and white clover
C1 - Edited contributions to conferences/learned societies
Penning, P. D., Newman, J. A., Parsons, A. J., Harvey, A. and Orr, R. J. 1995. The preference of adult sheep and goats grazing ryegrass and white clover. Fourth International Symposium on the Nutrition of Herbivores, 11-15 September 1995, Clermont-Ferrand, France.
Intake and behaviour responses by sheep, in different physiological states, when grazing monocultures of grass or white clover
A - Papers appearing in refereed journals
Penning, P. D., Parsons, A. J., Orr, R. J., Harvey, A. and Champion, R. A. 1995. Intake and behaviour responses by sheep, in different physiological states, when grazing monocultures of grass or white clover. Applied Animal Behaviour Science. 45, pp. 63-78.
Herbage intake rates and grazing behaviour of sheep and goats grazing grass or white clover
C1 - Edited contributions to conferences/learned societies
Penning, P. D., Orr, R. J., Parsons, A. J., Harvey, A. and Newman, J. A. 1995. Herbage intake rates and grazing behaviour of sheep and goats grazing grass or white clover. Fourth International Symposium on the Nutrition of Herbivores, 11-15 September 1995, Clermont-Ferrand, France.
Herbage intake and N excretion by sheep grazing monocultures or a mixture of grass and white clover
A - Papers appearing in refereed journals
Orr, R. J., Penning, P. D., Parsons, A. J. and Champion, R. A. 1995. Herbage intake and N excretion by sheep grazing monocultures or a mixture of grass and white clover. Grass and Forage Science. 50 (1), pp. 31-40. https://doi.org/10.1111/j.1365-2494.1995.tb02291.x
Dietary preference of heifers for grass or clover, with and without romensin slow-release anti-bloat boluses
C1 - Edited contributions to conferences/learned societies
Penning, P. D., Parsons, A. J., Orr, R. J., Harvey, A. and Yarrow, N. H. 1995. Dietary preference of heifers for grass or clover, with and without romensin slow-release anti-bloat boluses. Proceedings of the 111th Meeting of the British Society of Animal Science, Scarborough, 20-22 March 1995.
Intake behaviour and production responses by sheep, in different physiological states, grazing monocultures of grass or white clover
C2 - Non-edited contributions to conferences
Penning, P. D., Parsons, A. J., Orr, R. J. and Harvey, A. 1994. Intake behaviour and production responses by sheep, in different physiological states, grazing monocultures of grass or white clover. Abstracts 45th Annual Meeting of the European Association for Animal Production, EAAP, Edinburgh, September 1994. pp. 281
The effect of concentrate level on the intakes of silages or hays by ewes in the first month of lactation
A - Papers appearing in refereed journals
Orr, R. J. and Treacher, T. T. 1994. The effect of concentrate level on the intakes of silages or hays by ewes in the first month of lactation. Animal Production. 58, pp. 109-116.
Intake and behaviour responses by sheep to changes in sward characteristics under rotational grazing
A - Papers appearing in refereed journals
Penning, P. D., Parsons, A. J., Orr, R. J. and Hooper, J. E. 1994. Intake and behaviour responses by sheep to changes in sward characteristics under rotational grazing. Grass and Forage Science. 49 (4), pp. 476-486. https://doi.org/10.1111/j.1365-2494.1994.tb02025.x
Fasting affects intake behaviour and diet preference of grazing sheep
A - Papers appearing in refereed journals
Newman, J. A., Penning, P. D., Parsons, A. J., Harvey, A. and Orr, R. J. 1994. Fasting affects intake behaviour and diet preference of grazing sheep. Animal Behaviour. 47, pp. 185-193. https://doi.org/10.1006/anbe.1994.1021
Diurnal patterns of ingestive behaviour by sheep
C2 - Non-edited contributions to conferences
Orr, R. J., Harvey, A. and Champion, R. A. 1994. Diurnal patterns of ingestive behaviour by sheep. Fourth British Grassland Society (BGS) Research Conference, 26-28 September 1994, Reading University.
Diet preference of sheep: effects of recent diet, physiological state and species abundance
A - Papers appearing in refereed journals
Parsons, A. J., Newman, J. A., Penning, P. D., Harvey, A. and Orr, R. J. 1994. Diet preference of sheep: effects of recent diet, physiological state and species abundance. Journal of Animal Ecology. 63, pp. 465-478. https://doi.org/10.2307/5563
The effects of group size on grazing time in sheep
A - Papers appearing in refereed journals
Penning, P. D., Parsons, A. J., Newman, J. A., Orr, R. J. and Harvey, A. 1993. The effects of group size on grazing time in sheep. Applied Animal Behaviour Science. 37, pp. 101-109. https://doi.org/10.1016/0168-1591(93)90103-V
Factors controlling meal length and herbage intake rate by grazing sheep
C1 - Edited contributions to conferences/learned societies
Penning, P. D., Orr, R. J., Parsons, A. J. and Rutter, S. M. 1993. Factors controlling meal length and herbage intake rate by grazing sheep. Proceedings of the Third International Congress on Applied Ethology, July 1993, Berlin, Germany. Humboldt University, Berlin. pp. 498-500
Effects of some factors on insensible weight loss in grazing sheep
C1 - Edited contributions to conferences/learned societies
Dumont, B., Penning, P. D., Orr, R. J. and D'Hour, P. 1993. Effects of some factors on insensible weight loss in grazing sheep. Proceedings of 8iemes Journees des Recherches sur l'Alimentation et la Nutrition des Herbivores, 24-25 March 1993, Paris, France.
Dietary preferences of sheep and goats
C2 - Non-edited contributions to conferences
Penning, P. D., Parsons, A. J., Harvey, A. and Orr, R. J. 1993. Dietary preferences of sheep and goats. Proceedings from Agricultural and Environmental Management "Pointers for Change", 8 April 1993, National Agricultural Conference, Stoneleigh, UK.
Uptake, cycling and fate of nitrogen in grass-clover swards continuously grazed by sheep
A - Papers appearing in refereed journals
Parsons, A. J., Orr, R. J., Penning, P. D. and Lockyer, D. R. 1991. Uptake, cycling and fate of nitrogen in grass-clover swards continuously grazed by sheep. The Journal of Agricultural Science. 116, pp. 47-61. https://doi.org/10.1017/S0021859600076139
Patterns of ingestive behaviour of sheep continuously stocked on monocultures of ryegrass or white clover
A - Papers appearing in refereed journals
Penning, P. D., Rook, A. J. and Orr, R. J. 1991. Patterns of ingestive behaviour of sheep continuously stocked on monocultures of ryegrass or white clover. Applied Animal Behaviour Science. 31, pp. 237-250.
Micrometeorological studies of ammonia emission from sheep grazed swards
A - Papers appearing in refereed journals
Jarvis, S. C., Hatch, D. J., Orr, R. J. and Reynolds, S. E. 1991. Micrometeorological studies of ammonia emission from sheep grazed swards. The Journal of Agricultural Science. 117, pp. 101-109. https://doi.org/Reynolds(a1)DOI:https://doi.org/10.1017/S0021859600079028
Intake and behaviour responses by sheep to changes in sward characteristics under continuous stocking
A - Papers appearing in refereed journals
Penning, P. D., Parsons, A. J., Orr, R. J. and Treacher, T. T. 1991. Intake and behaviour responses by sheep to changes in sward characteristics under continuous stocking. Grass and Forage Science. 46, pp. 15-28.
The performance of ewes offered diets containing different proportions of perennial ryegrass and white clover silage in late pregnancy
A - Papers appearing in refereed journals
Orr, R. J. and Treacher, T. T. 1990. The performance of ewes offered diets containing different proportions of perennial ryegrass and white clover silage in late pregnancy. Animal Production. 51, pp. 143-153.
Sward composition, animal performance and the potential production of grass/white clover swards continuously stocked with sheep
A - Papers appearing in refereed journals
Orr, R. J., Parsons, A. J., Penning, P. D. and Treacher, T. T. 1990. Sward composition, animal performance and the potential production of grass/white clover swards continuously stocked with sheep. Grass and Forage Science. 45, pp. 325-336.
Intakes of silages, hays or straws by ewes in mid pregnancy
A - Papers appearing in refereed journals
Orr, R. J. and Treacher, T. T. 1990. Intakes of silages, hays or straws by ewes in mid pregnancy. Animal Production. 51, pp. 301-310.
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