| Diet preference of sheep: effects of recent diet, physiological state and species abundance AJ Parsons, JA Newman, PD Penning, A Harvey, RJ Orr Journal of animal ecology, 465-478, 1994 | 418 | 1994 |
| Intake and behaviour responses by sheep to changes in sward characteristics under continuous stocking PD Penning, AJ Parsons, RJ Orr, TT Treacher Grass and Forage Science 46, 15-28, 1991 | 319 | 1991 |
| Patterns of ingestive behaviour of sheep continuously stocked on monocultures of ryegrass or white clover PD Penning, AJ Rook, RJ Orr Applied Animal Behaviour Science 31, 237-250, 1991 | 197 | 1991 |
| Fasting affects intake behaviour and diet preference of grazing sheep JA Newman, PD Penning, AJ Parsons, A Harvey, RJ Orr Animal Behaviour 47, 185-193, 1994 | 186 | 1994 |
| Matching grass supply to grazing patterns for dairy cows RJ Orr, SM Rutter, PD Penning, AJ Rook Grass and Forage Science 56, 352-361, 2001 | 184 | 2001 |
| The effects of group size on grazing time in sheep PD Penning, AJ Parsons, JA Newman, RJ Orr, A Harvey Applied Animal Behaviour Science 37, 101-109, 1993 | 176 | 1993 |
| Intake and behaviour responses by sheep to changes in sward characteristics under rotational grazing PD Penning, AJ Parsons, RJ Orr, GE Hooper Grass and Forage Science 49, 476-486, 1994 | 171 | 1994 |
| Uptake, cycling and fate of nitrogen in grass-clover swards continuously grazed by sheep AJ Parsons, RJ Orr, PD Penning, DR Lockyer, JC Ryden Journal of Agricultural Science, Cambridge 116, 47-61, 1991 | 156 | 1991 |
| Diurnal patterns of intake rate by sheep grazing monocultures of ryegrass or white clover RJ Orr, PD Penning, A Harvey, RA Champion Applied Animal Behaviour Science 52, 65-77, 1997 | 154 | 1997 |
| Sward composition, animal performance and the potential production of grass/white clover swards continuously stocked with sheep RJ Orr, AJ Parsons, PD Penning, TT Treacher Grass and Forage Science 45, 325-336, 1990 | 139 | 1990 |
| Intake and behaviour responses by sheep, in different physiological states, when grazing monocultures of grass or white clover PD Penning, AJ Parsons, RJ Orr, A Harvey, RA Champion Applied Animal Behaviour Science 45, 63-78, 1995 | 135 | 1995 |
| Dietary preference of dairy cows grazing ryegrass and white clover SM Rutter, RJ Orr, NH Yarrow, RA Champion Journal of Dairy Science 87, 1317-1324, 2004 | 123 | 2004 |
| Enhancing floral resources for pollinators in productive agricultural grasslands BA Woodcock, J Savage, JM Bullock, M Nowakowski, R Orr, JRB Tallowin, ... Biological conservation 171, 44-51, 2014 | 117 | 2014 |
| The N orth W yke F arm P latform: effect of temperate grassland farming systems on soil moisture contents, runoff and associated water quality dynamics RJ Orr, PJ Murray, CJ Eyles, MSA Blackwell, LM Cardenas, AL Collins, ... European Journal of Soil Science 67 (4), 374-385, 2016 | 99 | 2016 |
| The preference of adult sheep and goats grazing ryegrass and white clover PD Penning, JA Newman, AJ Parsons, A Harvey, RJ Orr Annales de Zootechnie 44, 113, 1995 | 89* | 1995 |
| Distributions of emissions intensity for individual beef cattle reared on pasture-based production systems GA McAuliffe, T Takahashi, RJ Orr, P Harris, MRF Lee Journal of cleaner production 171, 1672-1680, 2018 | 87 | 2018 |
| The effect of the spatial scale of heterogeneity of two herbage species on the grazing behaviour of lactating sheep RA Champion, RJ Orr, PD Penning, SM Rutter Applied Animal Behaviour Science 88, 61-76, 2004 | 86 | 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 RJ Orr, SM Rutter, NH Yarrow, RA Champion, AJ Rook Applied Animal Behaviour Science 87, 205-222, 2004 | 85 | 2004 |
| Seasonal patterns of grass production under cutting or continuous stocking managements RJ Orr, AJ Parsons, TT Treacher, PD Penning Grass and Forage Science 43, 199-207, 1988 | 74 | 1988 |
| Ingestive behaviour of heifers grazing monocultures of ryegrass or white clover SM Rutter, RJ Orr, PD Penning, NH Yarrow, RA Champion Applied Animal Behaviour Science 76, 1-9, 2002 | 72 | 2002 |
Tony ParsonsProfessor Grassland Science, Massey University, NZVerified email at massey.ac.nz