Newcastle University

Research Interests

Integrative pig science:
Nutritional influences on reproduction in the pig
Prevention of abnormal behaviour in pigs by modified nutrition
Multidiscipliniary approaches to reduce weaning stress
Environmental influences on pig health
Management of extensive and organic livestock production systems
Animal behaviour and welfare:
Environmental enrichment and pig welfare
Social organisation and resource requirements in relation to group size
Environmental influences on behavioural development

Esteem Indicators

LINK SLP Programme Management Committee (2002-2006; 2009- )
Assessor – MAFF review of research programme on livestock nutrition to reduce environmental pollution (2001)
Assessor – Danish Research Centre for Organic Farming review of organic livestock research programme (2001)
Chairman, BSAS Committee on Nutritional Standards for Livestock (2001-3)
Secretary and Management Board member, Commission of Animal Management & Health, European Association of Animal Production (2005-7).
Member of EFSA Scientific Veterinary Committee working group to report on ‘Space and flooring requirements for Pigs’ (2004-5)
Member of UK Farm Animal Welfare Council (2006-)
Council Member for European Federation of Animal Science (2006-)

Many invited keynote papers at international conferences (not listed individually) eg European Federation of Animal Science

Fellow of the Institute of Biology (elected 2001)
Fellow of the Royal Agricultural Society (elected 2002)
President of the British Society of Animal Science (2004/5)

Editor: British Journal of Nutrition
Editorial Board: Applied Animal Behaviour Science, Journal of Animal Science, Asian-Australasian Journal of Animal Science
Section Editor: Animal

Undergraduate Teaching

ACE3022 Animal Welfare and Environment (ML)
ACE3048 Livestock Behaviour (ML)
ACE3049 Companion Animal Behaviour (ML)
AGR398 Animal Science Research Project
ACE2010 Agricultural Marketing
ACE1027 Animal Behaviour Methodology (ML)
ACE1021 Animal Health

• Baxter EM, Lawrence AB, Edwards SA. Alternative farrowing accommodation: welfare and economic aspects of existing farrowing and lactation systems for pigs. Animal 2012, 6(1), 96-117.
• Keeling LJ, Immink V, Hubbard C, Garrod G, Edwards SA, Ingenbleek P. Designing animal welfare policies and monitoring progress. Animal Welfare 2012, 21(supplement 1), 95-105.
• Guy JH, Cain PJ, Seddon YM, Baxter EM, Edwards SA. Economic evaluation of high welfare indoor farrowing systems for pigs. Animal Welfare 2012, 21(s1), 19-24.
• Rano NB, Chaudhry AS, Edwards SA. Effect of feeding distiller’s dried grains with solubles on carcass characteristics and digestive organs. In: Proceedings of the British Society of Animal Science and the Association of Veterinary Teaching and Research Work. 2012, Jubilee Campus, University of Nottingham, UK: Cambridge University Press.
• Spoolder HAM, Aarnink AAJ, Vermeer HM, van Riel J, Edwards SA. Effect of increasing temperature on space requirements of group housed finishing pigs. Applied Animal Behaviour Science 2012, 138(3-4), 229-239.
• Rano NB, Chaudhry AS, Edwards SA. Effects of feeding distiller’s dried grains with solubles in broiler diets on performance and digestibility. In: British Society of Animal Science and the Association of Veterinary Teaching and Research Work. 2012, University of Nottingham: Cambridge University Press.
• Douglas C, Bateson M, Walsh C, Bedue A, Edwards SA. Environmental enrichment induces optimistic cognitive biases in pigs. Applied Animal Behaviour Science 2012, 139(1-2), 65-73.
• Sanchez-Vazquez MJ, Nielen M, Edwards SA, Gunn GJ, Lewis FI. Identifying associations between pig pathologies using a multi-dimensional machine learning methodology. BMC Veterinary Research 2012, 8(1), 151.
• Mat K, Beard A, Edwards S. Influence of bull exposure on resumption of ovulatory activity of postpartum anoestrous dairy cows. In: 17th International Congress on Animal Reproduction (ICAR). 2012, Vancouver, Canada: Wiley-Blackwell Verlag GmbH.
• Averos X, Brossard L, Dourmad JY, de Greef KH, Edwards SA, Meunier-Salaun MC. Meta-analysis on the effects of the physical environment, animal traits, feeder and feed characteristics on the feeding behaviour and performance of growing-finishing pigs. Animal 2012, 6(8), 1275-1289.
• Seddon YM, Guy JH, Edwards SA. Optimising oral fluid collection from groups of pigs: Effect of housing system and provision of ropes. Veterinary Journal 2012, 193(1), 180-184.
• Baxter EM, Jarvis S, Palarea-Albaladejo J, Edwards SA. The Weaker Sex? The Propensity for Male-Biased Piglet Mortality. PLoS One 2012, 7(1), e30318.
• Mullan S, Edwards SA, Butterworth A, Whay HR, Main DCJ. A pilot investigation of Farm Assurance assessors' attitude to farm animal welfare as a confounding factor to training in pig welfare outcome measures. Animal Welfare 2011, 20(3), 413-421.
• Mullan S, Edwards SA, Butterworth A, Whay HR, Main DCJ. A pilot investigation of possible positive system descriptors in finishing pigs. Animal Welfare 2011, 20(3), 439-449.
• Baxter EM, Lawrence AB, Edwards SA. Alternative farrowing systems: design criteria for farrowing systems based on the biological needs of sows and piglets. Animal 2011, 5(4), 580-600.
• Ahmadi BV, Stott AW, Baxter EM, Lawrence AB, Edwards SA. Animal welfare and economic optimisation of farrowing systems. Animal Welfare 2011, 20(1), 57-67.
• Baxter EM, Jarvis S, Sherwood L, Farish M, Roehe R, Lawrence AB, Edwards SA. Genetic and environmental effects on piglet survival and maternal behaviour of the farrowing sow. Applied Animal Behaviour Science 2011, 130(1-2), 28-41.
• Seddon YM, Farrow M, Guy JH, Edwards SA. Real time monitoring of finisher pig water consumption: Investigation at pen level. In: XVth International Society for Animal Hygiene Congress. 2011, Vienna, Austria.
• Mullan S, Edwards SA, Butterworth A, Ward M, Whay HR, Main DCJ. Welfare science into practice: a successful case example of working with industry. Animal Welfare 2011, 20(4), 597-601.
• Mullan S, Butterworth A, Edwards S, Whay H, Main D. Consultation of pig farmers on the inclusion of some welfare outcome assessments within UK farm assurance. Veterinary Record 2010, 166(22), 678-680.
• Roehe R, Shrestha NP, Mekkawy W, Baxter EM, Knap PW, Smurthwaite KM, Jarvis S, Lawrence AB, Edwards SA. Genetic parameters of piglet survival and birth weight from a two-generation crossbreeding experiment under outdoor conditions designed to disentangle direct and maternal effects. Journal of Animal Science 2010, 88(4), 1276-1285.
• Averos X, Brossard L, Dourmad JY, de Greef KH, Edge HL, Edwards SA, Meunier-Salaun MC. Quantitative assessment of the effects of space allowance, group size and floor characteristics on the lying behaviour of growing-finishing pigs. Animal 2010, 4(5), 777-783.
• Taylor NR, Main DCJ, Mendl M, Edwards SA. Tail-biting A new perspective. Veterinary Journal 2010, 186(2), 137-147.
• Ellegaard L, Cunningham A, Edwards S, Grand N, Nevalainen T, Prescott M, Schuurman T. Welfare of the minipig with special reference to use in regulatory toxicology studies. Journal of Pharmacological and Toxicological Methods 2010, 62(3), 167-183.
• von Borell E, Baumgartner J, Giersing M, Jaggin N, Prunier A, Tuyttens FAM, Edwards SA. Animal welfare implications of surgical castration and its alternatives in pigs. Animal 2009, 3(11), 1488-1496.
• Scott K, Laws DM, Courboulay V, Meunier-Salaun MC, Edwards SA. Comparison of methods to assess fear of humans in sows. Applied Animal Behaviour Science 2009, 118(1-2), 36-41.
• Weng RC, Edwards SA, Hsia LC. Effect of Individual, Group or ESF Housing in Pregnancy and Individual or Group Housing in Lactation on Sow Behavior. Asian-Australasian Journal of Animal Sciences 2009, 22(11), 1574-1580.
• Weng RC, Edwards SA, Hsia LC. Effect of Individual, Group or ESF Housing in Pregnancy and Individual or Group Housing in Lactation on the Performance of Sows and Their Piglets. Asian-Australasian Journal of Animal Sciences 2009, 22(9), 1328-1333.
• Weng RC, Edwards SA, Hsia LC. Effect of Nursing Frequency and Creep Feed Provision on the Milk and Feed Intake and Performance of Zero Day Weaned Piglets Reared on a Dummy Sow. Asian-Australasian Journal of Animal Sciences 2009, 22(11), 1540-1546.
• Kapell DNRG, Ashworth CJ, Walling GA, Lawrence AB, Edwards SA, Roehe R. Estimation of genetic associations between reproduction and production traits based on a sire and dam line with common ancestry. Animal 2009, 3(10), 1354-1362.
• Roehe R, Shrestha NP, Mekkawy W, Baxter EM, Knap PW, Smurthwaite KM, Jarvis S, Lawrence AB, Edwards SA. Genetic analyses of piglet survival and individual birth weight on first generation data of a selection experiment for piglet survival under outdoor conditions. Livestock Science 2009, 121(2-3), 173-181.
• Baxter EM, Jarvis S, Sherwood L, Robson SK, Ormandy E, Farish M, Smurthwaite KM, Roehe R, Lawrence AB, Edwards SA. Indicators of piglet survival in an outdoor farrowing system. Livestock Science 2009, 124(1-3), 266-276.
• Scott K, Taylor L, Gill BP, Edwards SA. Influence of different types of environmental enrichment on the behaviour of finishing pigs in two different housing systems 3. Hanging toy versus rootable toy of the same material. Applied Animal Behaviour Science 2009, 116(2-4), 186-190.
• Mullan S, Edwards SA, Butterworth A, Whay HR, Main DCJ. Interdependence of welfare outcome measures and potential confounding factors on finishing pig farms. Applied Animal Behaviour Science 2009, 121(1), 25-31.
• Olea R, Guy JH, Edge H, Stockdale EA, Edwards SA. Pigmeat supply chain: Life Cycle Analysis of contrasting pig farming scenarios. In: Stockdale, E., Martindale, W, ed. Measuring and Marketing the Environmental Costs and Benefits of Agricultural Practice. Warwick, UK: Association of Applied Biologists, 2009, pp.91-96.
• Scott K, Binnendijk GP, Edwards SA, Guy JH, Kiezebrink MC, Vermeer HM. Preliminary evaluation of a prototype welfare monitoring system for sows and piglets (Welfare Quality® project). Animal Welfare 2009, 18(4), 441-449.
• Guy JH, Bums SE, Barker JM, Edwards SA. Reducing post-mixing aggression and skin lesions in weaned pigs by application of a synthetic maternal pheromone. Animal Welfare 2009, 18(3), 249-255.
• Edwards SA, von Borell E, Bonneau M. Scientific and practical issues associated with piglet castration. Animal 2009, 3(11), 1478-1479.
• Mullan S, Browne WJ, Edwards SA, Butterworth A, Whay HR, Main DCJ. The effect of sampling strategy on the estimated prevalence of welfare outcome measures on finishing pig farms. Applied Animal Behaviour Science 2009, 119(1-2), 39-48.
• Trickett SL, Guy JH, Edwards SA. The role of novelty in environmental enrichment for the weaned pig. Applied Animal Behaviour Science 2009, 116(1), 45-51.
• Von Borrell E, Oliver M, Fredriksen B, Edwards S, Bonneau M. Attitudes, practices and state of the art regarding piglet castration in Europe (PIGCAS) - Project goals and first results [Standpunkte, Praktiken und Kenntnisstand zur Ferkelkastration in Europa (PIGCAS) – Projektziele und erste Ergebnisse]. Journal fuer Verbraucherschutz und Lebensmittelsicherheit 2008, 3(2), 216-220.
• Ravn LS, Andersen NK, Rasmussen MA, Christensen M, Edwards SA, Guy JH, Henckel P, Harrison AP. De electricitatis catholici musculari - Concerning the electrical properties of muscles, with emphasis on meat quality. Meat Science 2008, 80(2), 423-430.
• Ziaei N, Guy J, Edwards S, Blanchard P, Ward J, Feuerstein D. Effect of reducing dietary mineral content on growth performance, water intake, excreta dry matter content and blood parameters of broilers. British Poultry Science 2008, 49(2), 195-201.
• Bracke MBM, Edwards SA, Engel B, Buist WG, Algers B. Expert opinion as 'validation' of risk assessment applied to calf welfare. Acta Veterinaria Scandinavica 2008, 50, 29.
• Baxter EM, Jarvis S, D'Eath RB, Ross DW, Robson SK, Farish M, Nevison IM, Lawrence AB, Edwards SA. Investigating the behavioural and physiological indicators of neonatal survival in pigs. Theriogenology 2008, 69(6), 773-783.
• Pickard RM, Beard AR, Seal CJ, Edwards SA. Neonatal lamb vigour is improved by feeding docosahexaenoic acid in the form of algal biomass during late gestation. Animal 2008, 2(8), 1186-1192.
• Andersen NK, Ravn LS, Guy JH, Edwards SA, Harrison AP. Postnatal changes in electromyographic signals during piglet growth, and in relation to muscle fibre types. Livestock Science 2008, 115(2-3), 301-312.
• Bracke MBM, Edwards SA, Metz JHM, Noordhuizen JPTM, Algers B. Synthesis of semantic modelling and risk analysis methodology applied to animal welfare. Animal 2008, 2(7), 1061-1072.
• Day JEL, Van de Weerd HA, Edwards SA. The effect of varying lengths of straw bedding on the behaviour of growing pigs. Applied Animal Behaviour Science 2008, 109(2-4), 249-260.
• Docking CM, Van de Weerd HA, Day JEL, Edwards SA. The influence of age on the use of potential enrichment objects and synchronisation of behaviour of pigs. Applied Animal Behaviour Science 2008, 110(3-4), 244-257.
• Ferguson EM, Slevin J, Hunter MG, Edwards SA, Ashworth CJ. Beneficial effects of a high fibre diet on oocyte maturity and embryo survival in gilts. Reproduction 2007, 133(2), 433-439.
• Mihina Š, Huba J, Peters KJ, Edwards SA, Sorensen JT, Gibon A, Jemeljanovs A, Juskiene V, Szabo F, Sloszar P, Todorov N. Development of Production Systems in Europe. In: A. Rosati, A. Tewolde and C. Mosconi, ed. WAAP Book of the Year 2006. Wageningen: Wageningen Academic Publishers, 2007, pp.25-35.
• Kelly HRC, Browning HM, Day JEL, Martin A, Pearce GP, Stopes C, Edwards SA. Effect of breed type, housing and feeding system on performance of growing pigs managed under organic conditions. Journal of the Science of Food and Agriculture 2007, 87(15), 2794-2800.
• Ziaei N, Guy JH, Edwards SA, Blanchard PJ, Ward J, Feuerstein D. Effect of gender on factors affecting excreta dry matter content of broiler chickens. Journal of Applied Poultry Research 2007, 16(2), 226-233.
• Wattanakul W, Rooke JA, Stewart AH, English PR, Edwards SA. Effect of milk deprivation during the lactation period on performance and digestive enzyme activities of the piglets following weaning. Animal 2007, 1(3), 381-387.
• Ashworth CJ, Ferguson EM, Edwards SA, Hunter MG. Embryo mortality in the pig: New solutions for an old problem?. In: 11th Annual Conference of the European Society for Domestic Animal Reproduction (ESDAR). 2007, Celle, Germany: Reproduction in Domestic Animals, Wiley-Blackwell.
• Chase-Topping ME, Gunn G, Strachan WD, Edwards SA, Smith WJ, Hillman K, Stefopoulou SN, Thomson JR. Epidemiology of porcine non-specific colitis on Scottish farms. Veterinary Journal 2007, 173(2), 353-360.
• Edwards SA. Experimental welfare assessment and on-farm application. In: Animal Welfare: 3rd International Workshop on Assessment of Animal Welfare at Farm and Group Level. 2007, Vienna, Austria: Universities Federation for Animal Welfare.
• Scott K, Edwards SA, Hautekiet V, van Steenbergen L. Illness status. In: Velarde, A; Geers, R, ed. On Farm Monitoring of Pig Welfare. Wageningen: Wageningen Academic Publishers, 2007, pp.101-106.
• Scott K, Taylor L, Gill BP, Edwards SA. Influence of different types of environmental enrichment on the behaviour of finishing pigs in two different housing systems. 2. Ratio of pigs to enrichment. Applied Animal Behaviour Science 2007, 105(1-3), 51-58.
• Meunier-Salaun M-C, Courboulay V, Scott K, Guy J, Edwards S. Mesure de la relation home-animal chez le porc en croissance: validation d’un test applicable en elevage. Journees de Recherche Porcine en France 2007.
• Edwards SA. Reproduction problems. In: Verlarde, A; Geers, R, ed. On Farm Monitoring of Pig Welfare. Wageningen: Wageningen Academic publishers, 2007, pp.107-110.
• Scott K, Chennells DJ, Taylor L, Gill BP, Edwards SA. The welfare of finishing pigs under different housing and feeding systems: Liquid versus dry feeding in fully-slatted and straw-based housing. Animal Welfare 2007, 16(1), 53-62.
• Guy JH, Edwards SA. Alternative production systems. In: R. Geers and F. Madec, ed. Livestock Production and Society. Wageningen Academic Publishers, 2006, pp.273-286.
• Sørensen JT, Edwards S, Noordhuizen J, Gunnarsson S. Animal production systems in the industrialised world. In: Animal Production Food Safety Challenges in Global Markets. Paris, France: Office Intl Des Epizooties, 2006, pp.493-503.
• Edwards SA, English PR, Fraser D. Animal Welfare. In: Straw, BE; Zimmerman, JJ; D’Allaire, S; Taylor, DJ, ed. Diseases of Swine. Ames, Iowa: Blackwall Publishing, 2006, pp.1065-1073.
• Gonyou HW, Brumm MC, Bush E, Deen J, Edwards SA, Fangman T, McGlone JJ, Meunier-Salaun M, Morrison RB, Spoolder H, Sundberg PL, Johnson AK. Application of broken-line analysis to assess floor space requirements of nursery and grower-finisher pigs expressed on an allometric basis. Journal of Animal Science 2006, 84(1), 229-235.
• Thanantong N, Edwards S, Sparagano OAE. Characterization of lactic acid bacteria and other gut bacteria in pigs by a macroarraying method. In: Impact of Emerging Zoonotic Diseases on Animal Health: 8th Biennial Conference of the Society for Tropical Veterinary Medicine. 2006, Hanoi, Vietnam: Wiley-Blackwell Publishing Inc.
• Jones GM, Rooke JA, Sinclair AG, Jagger S, Hoste S, Edwards SA. Consequences for body composition at farrowing and nutrient partitioning during lactation of a choice-feeding regime during rearing and pregnancy in gilts of different genotypes. Livestock Science 2006, 99(2-3), 97-109.
• Ferguson EM, Slevin J, Edwards SA, Hunter MG, Ashworth CJ. Effect of alterations in the quantity and composition of the pre-mating diet on embryo survival and foetal growth in the pig. Animal Reproduction Science 2006, 96(1-2), 89-103.
• Van de Weerd HA, Docking CM, Day JEL, Breuer K, Edwards SA. Effects of species-relevant environmental enrichment on the behaviour and productivity of finishing pigs. Applied Animal Behaviour Science 2006, 99(3-4), 230-247.
• Scott K, Taylor L, Gill BP, Edwards SA. Influence of different types of environmental enrichment on the behaviour of finishing pigs in two different housing systems. 1. Hanging toy versus rootable substrate. Applied Animal Behaviour Science 2006, 99(3-4), 222-229.
• Andersen IL, Berg S, Boe KE, Edwards S. Positive handling in late pregnancy and the consequences for maternal behaviour and production in sows. Applied Animal Behaviour Science 2006, 99(1-2), 64-76.
• Edwards SA. Tail biting in pigs: Understanding the intractable problem. Veterinary Journal 2006, 171(2), 198-199.
• Scott K, Chennells DJ, Campbell FM, Hunt B, Armstrong D, Taylor L, Gill BP, Edwards SA. The welfare of finishing pigs in two contrasting housing systems: Fully-slatted versus straw-bedded accommodation. Livestock Science 2006, 103(1-2), 104-115.
• Edge HL, Bulman CA, Edwards SA. Alternatives to nose-ringing in outdoor sows: The provision of root crops. Applied Animal Behaviour Science 2005, 92(1-2), 15-26.
• Marie M, Edwards S, Gandini G, Reiss M, von Borrell E, ed. Animal Bioethics: Principles and Teaching methods. Wageningen: Wageningen Academic Publishers, 2005.
• Edwards SA. Enhancing sow performance and welfare by choice of dietary energy substrates. Biotechnology in Animal Husbandry 2005, 21(5-6), 149-154.
• Beattie VE, Breuer K, O'Connell NE, Sneddon IA, Mercer JT, Rance KA, Sutcliffe MEM, Edwards SA. Factors identifying pigs predisposed to tail biting. Animal Science 2005, 80(3), 307-312.
• Breuer K, Sutcliffe MEM, Mercer JT, Rance KA, O'Connell NE, Sneddon IA, Edwards SA. Heritability of clinical tail-biting and its relation to performance traits. Livestock Production Science 2005, 93(1), 87-94.
• O'Connell NE, Beattie VE, Sneddon IA, Breuer K, Mercer JT, Rance KA, Sutcliffe MEM, Edwards SA. Influence of individual predisposition, maternal experience and lactation environment on the responses of pigs to weaning at two different ages. Applied Animal Behaviour Science 2005, 90(3-4), 219-232.
• Hunter MG, Brankin V, Quinn RL, Ferguson EM, Edwards SA, Ashworth CJ. Oocyte-somatic cell-endocrine interactions in pigs. Domestic Animal Endocrinology 2005, 29(2), 371-384.
• Edwards SA. Product quality attributes associated with outdoor pig production. Livestock Production Science 2005, 94(1-2), 5-14.
• Van De Weerd HA, Docking CM, Day JEL, Edwards SA. The development of harmful social behaviour in pigs with intact tails and different enrichment backgrounds in two housing systems. Animal Science 2005, 80(3), 289-298.
• Wattanakul W, Bulman CA, Edge HL, Edwards SA. The effect of creep feed presentation method on feeding behaviour, intake and performance of suckling piglets. Applied Animal Behaviour Science 2005, 92(1-2), 27-36.
• Edge HL, Bornett HLI, Newton E, Edwards SA. Alternatives to nose-ringing in outdoor sows: 2. The provision of edible or inedible overground enrichment. Animal Welfare 2004, 13(2), 233-237.
• Guy JH, Edwards SA, Gill BP. Effect of Meishan genotype on feed intake, growth performance and pork eating quality. In: Pig and Poultry Meat Quality – Genetic and non-genetic factors. 2004, Krakow, Poland: British Society of Animal Science.
• Turner SP, Edwards SA. Housing immature domestic pigs in large social groups: Implications for social organisation in a hierarchical society. Applied Animal Behaviour Science 2004, 87(3-4), 239-253.
• Grigoriadis D, Edwards SA, English PR, Davidson FM. The effect of reducing the number of boars, according to their sexual status, on the reproductive efficiency in a dynamic service system. Animal Science Review 2004, 32, 63-73.
• Van De Weerd HA, Docking CM, Day JEL, Avery PJ, Edwards SA. A systematic approach towards developing environmental enrichment for pigs. Applied Animal Behaviour Science 2003, 84(2), 101-118.
• Bornett HLI, Edge HL, Edwards SA. Alternatives to nose-ringing in outdoor sows 1. The provision of a sacrificial rooting area. Applied Animal Behaviour Science 2003, 83(4), 267-276.
• Watson CA, Atkins T, Bento S, Edwards AC, Edwards SA. Appropriateness of nutrient budgets for environmental risk assessment: A case study of outdoor pig production. European Journal of Agronomy 2003, 20(1-2), 117-126.
• Turner SP, Morgan GW, Edwards SA. Assessment of sub-grouping behaviour in pigs housed at different group sizes. Applied Animal Behaviour Science 2003, 83(4), 291-302.
• Grigoriadis FD, Edwards SA. Behavioural patterns in boar homosexuality. Animal Science Review 2003, 31, 3-11.
• Ferguson EM, Ashworth CJ, Edwards SA, Hawkins N, Hepburn N, Hunter MG. Effect of different nutritional regimens before ovulation on plasma concentrations of metabolic and reproductive hormones and oocyte maturation in gilts. Reproduction 2003, 126(1), 61-71.
• Shrestha NP, Edwards SA, English PR, Robertson JF. Factors affecting reproductive performance in the Nepalese Pakhribas pig: Effects of nutrition and housing during lactation. Asian-Australasian Journal of Animal Sciences 2003, 16(5), 644-649.
• Turner SP, Allcroft DJ, Edwards SA. Housing pigs in large social groups: A review of implications for performance and other economic traits. Livestock Production Science 2003, 82(1), 39-51.
• Edwards SA. Intake of nutrients from pasture by pigs. Proceedings of the Nutrition Society 2003, 62(2), 257-265.
• Rooke JA, Carranca C, Bland IM, Sinclair AG, Ewen M, Bland VC, Edwards SA. Relationships between passive absorption of immunoglobulin G by the piglet and plasma concentrations of immunoglobulin G at weaning. Livestock Production Science 2003, 81(2-3), 223-234.
• Bland IM, Rooke JA, Bland VC, Sinclair AG, Edwards SA. The appearance of immunoglobulin G in the plasma of suckling piglets is not limited by the intake of immunoglobulin G from colostrum or by delayed suckling. Animal Science 2003, 77, 277-286.
• Breuer K, Sutcliffe MEM, Mercer JT, Rance KA, Beattie VE, Sneddon IA, Edwards SA. The effect of breed on the development of adverse social behaviours in pigs. Applied Animal Behaviour Science 2003, 84(1), 59-74.
• Day JEL, Kelly H, Martins A, Edwards SA. Towards a baseline assessment of organic pig welfare. Animal Welfare 2003, 12(4), 637-641.
• McIntyre J, Edwards SA. An investigation into the effect of different protein and energy intakes on model tail chewing behaviour of growing pigs. Applied Animal Behaviour Science 2002, 77(2), 93-104.
• Guy JHG, Edwards SA. Consequences for meat quality of producing pork under organic standards. Pig News & Information 2002, 23(3), 75-80.
• Turner SP, Dahlgren M, Arey DS, Edwards SA. Effect of social group size and initial live weight on feeder space requirement of growing pigs given food ad libitum. Animal Science 2002, 75(1), 75-83.
• Edwards SA. Perinatal mortality in the pig: environmental or physiological solutions?. In: Livestock Production Science: 52nd Annual Meeting of the European Association for Animal Production. 2002, Budapest, Hungary: Elsevier BV.
• Jones GM, Edwards SA, Sinclair AG, Gebbie FE, Rooke JA, Jagger S, Hoste S. The effect of maize starch or soya-bean oil as energy sources in lactation on sow and piglet performance in association with sow metabolic state around peak lactation. Animal Science 2002, 75(1), 57-66.
• Day JEL, Burfoot A, Docking CM, Whittaker X, Spoolder HAM, Edwards SA. The effects of prior experience of straw and the level of straw provision on the behaviour of growing pigs. Applied Animal Behaviour Science 2002, 76(3), 189-202.
• Lowe P, Edwards S, Ward N. The Foot and Mouth Crisis: Issues for Public Policy and Research. Newcastle upon Tyne: Newcastle University, 2002. Centre for Rural Economy Working Paper 64.
• Day JEL, Spoolder HAM, Burfoot A, Chamberlain HL, Edwards SA. The separate and interactive effects of handling and environmental enrichment on the behaviour and welfare of growing pigs. Applied Animal Behaviour Science 2002, 75(3), 177-192.
• Day JEL, Whittaker X, Spoolder HAM, Edwards SA. A note on the development of a complex ethogram and the reliability of behavioural measurement using multiple observers. Pig News and Information 2001, 22, 49-54.
• Shrestha NP, Edwards SA, English PR, Robertson JF. An Evaluation of Boar Pheromone Spray to Aid the Stimulation and Detection of Estrus in Small Farms in Nepal. Asian-Australasian Journal of Animal Sciences 2001, 14(5), 697-700.
• Shrestha NP, Robertson J, Edwards SA, English PR. An evaluation of modification of the climatic environment to improve the efficiency of pig production in the hills of Nepal. Proc ASAE International Meeting, Sacremento, in press 2001.
• Shrestha NP, Edwards SA, English PR, Robertson JF. An evaluation of suckling and post weaning practices in relation to the stimulation and ease of detection of oestrus in Nepalese Pakhribas pigs. Asian-Australasian Journal of Animal Science 2001, 14, 765-770.
• McIntyre J, Edwards SA. An investigation into the effect of different protein and energy intakes on the tail chewing behaviour of growing pigs. Proceedings of the British Society of Animal Science, p176 2001.
• Kelly HRC, Browning HM, Martins AP, Pearce GP, Stopes C, Edwards SA. Breeding and feeding pigs for organic production. In: Proceedings of the Fourth NAHWOA Workshop. 2001, Wageningen, The Netherlands.
• Meunier-Salaun MC, Edwards SA, Robert S. Effect of dietary fibre on the behaviour and health of the restricted-fed sow. Animal Feed Science and Technology 2001, 90(1-2), 53-69.
• Turner SP, Edwards SA. Effect of social group size on aggressive behaviour between unacquainted domestic pigs. Applied Animal Behaviour Science 2001, 74(3), 203-215.
• Bland IM, Rooke JA, Sinclair AG, Bland VC, Edwards SA. Effects of supplementing the maternal diet with vitamins and vaccinating the sow on immunoglobulin G concentrations in piglet plasma. In: Proceedings of the Nutrition Society. 2001, University College, Cork, Republic of Ireland: Cambridge University Press.
• Curtis SE, Edwards SA, Gonyou H. Ethology and psychology. In: Pond, WG; Mersmann, HJ, ed. The Biology of the Domestic Pig. USA: Comstock Publishing Associates, 2001, pp.41-78.
• Curtis SE, Edwards SA, Gonyou H. Ethology and psychology. In: Pond, W., Mersmann, H, ed. The Biology of the Domestic Pig. Ithaca: Cornell University Press, 2001, pp.41-78.
• Watson CA, Atkins T, Bento S, Edwards AC, Edwards SA. Fate of N and P in outdoor pig production systems. In: Foodchain 2001 Workshop: Element balances and sustainability. 2001, Uppsala, Sweden.
• Rooke JA, Sinclair AG, Edwards SA. Feeding tuna oil to the sow at different times during pregnancy has different effects on piglet long-chain polyunsaturated fatty acid composition at birth and subsequent growth. British Journal of Nutrition 2001, 86(1), 21-30.
• Mowat D, Watson CA, Mayes RW, Kelly H, Browning H, Edwards SA. Herbage intake of growing pigs in an outdoor organic production system. Proceedings of the British Society of Animal Science Conference 2001 2001, 169.
• Edwards SA. Housing systems for dry sows. In: Sow housing options: a New Zealand Pork Seminar Series. 2001, New Zealand.
• Cooper M, Wijnberg M, Edwards SA. Hut space requirements for outdoor sows. Proceedings of the British Society of Animal Science 2001, 174.
• Day JEL, Spoolder HAM, Edwards SA. Straw as environmental enrichment: which properties to growing pigs find behaviourally rewarding. In: CIGR Seminar on Animal Welfare Considerations in Livestock Housing Systems. 2001, Zielona Gora, Poland.
• Grigoriadis DF, Edwards SA, English PR, Davidson F. The effect of boar team size on reproductive behaviour in a dynamic service system. Proceedings of the ISAE/BSAS Meeting 2001, OC7.
• Rocke JA, Sinclair AG, Edwards SA, Cordoba R, Pkiyach S, Penny PC, Finch AM, Horgan GW. The effect of feeding salmon oil to sows throughout pregnancy on pre-weaning mortality of piglets. Animal Science 2001, 73(3), 489-500.
• Grigoriadis DF, Edwards SA, English PR, Davidson F. The effect of oestrous cycle number, at constant age, on gilt reproduction in a dynamic service system. Animal Science 2001, 72(1), 11-17.
• Kelly H, Browning H, Day J, Martins A, Edwards SA. The effect of paddock rotation management on pasture damage by organic dry sows. Proceedings of the ISAE/BSAS Meeting, PC5 2001.
• Beattie VE, Breuer K, Dunne LM, Slade EC, O'Connell NE, Mercer JT, Rance KA, Sneddon IA, Sutcliffe MEM, Edwards SA. The Effect of Salt Deficiency on the Behavior of Finishing Pigs in a Tail Chew Test. Proceedings of the ISAE/BSAS Meeting 2001, PC2.
• Beattie VE, Breuer K, Dunne LM, Slade EC, O'Connell NE, Mercer JT, Rance KA, Sneddon IA, Sutcliffe MEM, Edwards SA. The effect of salt deficiency on the behaviour of finishing pigs in a tail chew test. Proceedings of the ISAE/BSAS Meeting 2001, PC2.
• Rivera Ferre MG, Edwards SA, Mayes RW, Riddoch I, Hovell FDDeB. The effect of season and level of concentrate on the voluntary intake and digestibility of herbage by outdoor sows. Animal Science Abstract 2001, 72(3), 501-510.
• Day JEL, Chamberlain H, Edwards SA. The effect of varying lengths of chopped straw bedding on the behaviour of growing pigs. Proceedings of the British Society of Animal Science, p177 2001.
• Day JEL, Burfoot A, Docking CM, Whittaker X, Spoolder HAM, Edwards SA. The effects of prior experience of straw and depth of straw bedding on the behaviour of growing pigs. Proceedings of the British Society of Animal Science Conference 2001 2001, 49.
• Sinclair AG, Bland VC, Edwards SA. The influence of gestation feeding strategy on body composition of gilts at farrowing and response to dietary protein in a modified lactation. Journal of Animal Science 2001, 79, 2397-2405.
• Sinclair AG, Bland VC, Edwards SA. The influence of gestation feeding strategy on body composition of gilts at farrowing and response to dietary protein in a modified lactation. Journal of Animal Science 2001, 79(9), 2397-2405.
• Reixach MasG, Felius S, Coonan C, English PR, Edwards SA. The influence of mineral blocks on the behaviour of newly weaned pigs. Proceedings of the British Society of Animal Science Conference 2001 2001, 180.
• Lowe P, Edwards S, Ward N. The realities revealed by foot and mouth. Town and Country Planning 2001, 70(6), 173-176.
• Horrell RI, A'Ness PJ, Edwards SA, Eddison JC. The use of nose-rings in pigs: Consequences for rooting, other functional activities, and welfare. Animal Welfare 2001, 10(1), 3-22.
• Breuer KB, Beattie VE, Dunne LM, Slade EC, Davies Z, Mercer JT, Rance KA, Sneddon IA, Sutcliffe MEM, Edwards SA. Validation and development of a behavioural test to predict the predisposition of growing pigs to perform harmful social behaviour such as tail biting. Proceedings of the British Society of Animal Science 2001, 50-50.
• Spoolder HAM, Edwards SA, Armsby AW, Corning S. A within-farm comparison of three different housing systems for finishing pigs. In: Swine Housing: Proceedings of the 1st International Conference. 2000, Des Moines, Iowa, USA: American Society of Agriculture.
• Spoolder HAM, Edwards SA, Corning S. Aggression among finishing pigs following mixing in kennelled and unkenelled accommodation. Livestock Production Science 2000, 63(2), 121-129.
• Edwards SA. Alternative housing for dry sows: system studies or component analyses?. In: 51st Annual Meeting of the European Association for Animal Production. 2000, The Hague, Netherlands: Wageningen Academic.
• Edwards SA. Alternative housing for dry sows: system studies or component analysis?. In: Improving health and welfare in animal production: proceedings of sessions of the EAAP Commission on Animal Management & Health. 2000, The Hague, Netherlands: Wageningen Pers.
• Edwards SA. Alternative housing for dry sows: system studies or component analysis?. In: 51st Annual Meeting of the European Association of Animal Production. 2000, The Hague, The Netherlands: Wageningen Pers.
• Doble NL, Hazlerigg DG, Edwards SA, Trayhurn P. Analysis of ob(obese) gene expression in porcine adipose tissues by a competitive reverse transcriptase polymerase chain reaction (RT-PCR). Proceedings of the Nutrition Society 2000, 59, 22A.
• Edwards SA. Animal Welfare. Issue paper no 5, British Society of Animal Science, Edinburgh 2000.
• Riart GR, Edwards SA, English PR. Assessment of hypothermia in outdoor newborn piglets and comparison with an indoor system. In: Proceedings of the British Society of Animal Science 2000. 2000, Scarborough, UK: Penicuik.
• Kelly HRC, Bruce JM, English PR, Fowler VR, Edwards SA. Behaviour of three-week weaned pigs in Straw-Flow®, deep straw and flatdeck housing systems. Applied Animal Behaviour Science 2000, 68(4), 269-280.
• Jones G, Edwards SA, Hoste S, Jagger S. Effect of choice feeding during pregnancy on body composition of gilts at farrowing and piglet birthweights in two different genotypes. Proc Nutr Soc, 59: 52A 2000.
• Rooke JA, Shanks M, Edwards SA. Effect of offering maize, linseed or tuna oils throughout pregnancy and lactation on sow and piglet tissue composition and piglet performance. Animal Science 2000, 71(2), 289-299.
• McKain N, Edwards J, Wallace RJ, MacRae J, Edwards S, Bequette BJ, Bruce L. Effects of flavomycin in the gastrointestinal tract of sheep. 2000.
• Sinclair AG, Bland VC, Edwards SA. Effects of modified maternal body composition at farrowing and dietary protein in lactation on piglet growth. Proc Nutr Soc, 59: 50A 2000.
• Arey DS, Sinclair A, Rooke JA, Edwards SA. Effects of re-grouping on behaviour, immune function and production in sows. In: Proceedings of the British Society of Animal Science. 2000, Scarborough, United Kingdom: British Society of Animal Science.
• Riart GR, Edwards SA, English PR. Estudio de los factores que afectan mortalidad pre-destete en lechones nacidos a campo: comparación con sistemas intensivos (Study of factors affecting pre-weaning mortality in piglets born to field: comparison with intensive systems). In: Congreso MERCOSUR de Producción Porcina. 2000, Buenos Aires.
• Turner SP, Arey DS, Edwards SA. Feeder space requirement of growing pigs housed at different group sizes. In: Proceedings of the British Society of Animal Science Annual Meeting 2000. 2000, Scarborough, United Kingdom: British Society of Animal Science.
• Rivera Ferre MG, Edwards SA, Mayes RW, Riddoch I, Hovell FD DeB. Grass utilisation by outdoor sows in different seasons measured by the n-alkane technique. In: Ecological Animal Husbandry in the Nordic Countries: Proceedings from NJF-seminar No. 303. 2000, Horsens, Denmark: Danish Research Centre for Organic Farming.
• Bartussek H, Bugner B, Edwards S, Haidn B, Jensen KH, Krispel F, van Putten G, Steiger A, Troxler J, Weber R, Wechsler B, Vermeer H, Weidemann R. Group housing of dry sows. In: Report on the IGN workshop. 2000, BAL Gumpenstein: Federal Institute for Agriculture alpenlandische Gumpenstein Irdning.
• Riart GR, Edwards SA, English PR. Hipotermia en lechones nacidos a campo: Evaluación y comparación con sistemas intensivos (Hypothermia in piglets born to the field: Evaluation and comparison with intensive systems). In: Congreso MERCOSUR de Producción Porcina. 2000, Buenos Aires.
• Edwards SA, English PR. Housing and facility constraints due to animal welfare and current European challenges. Proc American Association of Swine Practitioners, Indianapolis, March 2000. Workshop #2, pp15-25 2000.
• Edwards SA, Turner SP. Housing and management of pigs in large social groups. The Pig Journal 2000, 45, 45-54.
• Turner SP, Edwards SA. Housing in large groups reduces aggressiveness in growing pigs. In: 51st Annual Meeting of the European Association of Animal Production. 2000, The Hague, The Netherlands: Wageningen Pers.
• Spoolder HAM, Edwards SA, Corning S. Legislative methods for specifying stocking density and consequences for the welfare of finishing pigs. Livestock Production Science 2000, 64(2-3), 167-173.
• Kelly HRC, Bruce JM, English PR, Fowler VR, Edwards SA. Limb injuries, immune response and growth performance of early-weaned pigs in different housing systems. Animal Science 2000, 70(1), 73-83.
• Jones GM, Edwards SA, Sinclair AG, Gebbie FE, Rooke JA, Jagger S, Hoste S. Litter performance and glucose tolerance in lactating gilts of two different genotypes in response to choice-feeding in the pre-pubertal stage and pregnancy. Proceedings of the British Society of Animal Science 2000, 103.
• Horrell I, Ness PA, Edwards SA, Riddoch I. Nose rings influence feeding efficiency in pigs. Animal Science 2000, 71, 259-264.
• Edwards SA. Outdoor swine production. Sustainable pork symposium, Texas Tech University, Texas, June 2000 2000.
• English PR, Carr J, Gill BP, Sheldon M, Brent G, McPherson O, Grant S, Edwards SA. Pig Enterprise: stockman training package on CD ROM. 2000.
• Edwards SA. Pig production today and tomorrow. BBSRC Workshop on Alternatives to chemotheurapeutics in animal production systems. Loughborough, June 2000 2000.
• Edwards SA. Pig Welfare in Indoor Pig Production. In: Proceedings of the Congreso Internacional de Produccion y Sanidad Animal, XXI Symposium. 2000, Anaporc, Barcelona.
• Grigoriadis DF, Edwards SA, English PR, Davidson F. Reproductive behaviour and performance of gilts bred at the same age but at different post pubertal heat in a dynamic service system. In: Proceedings of the British Society of Animal Science Annual Meeting 2000. 2000, Scarborough, United Kingdom: British Society of Animal Science.
• Lucas SRL, Rooke JA, Bland VC, Sinclair AG, Edwards SA. The effect of choice feeding during the rearing period on reproductive function in the gilt. Proceedings of the British Society of Animal Science Annual Meeting 2000 2000, 102.
• Jones GM, Gebbie FE, Sinclair AG, Edwards SA. The effect of dietary energy source on milk and plasma prolactin levels in lactating sows. In: Proc 51st Annual Meeting, European Association of Animal Production. 2000, The Hague, The Netherlands: Wageningen Pers.
• Cordoba R, Pkiyach S, Rooke JA, Edwards SA, Penny P, Pike I. The effect of feeding salmon oil during pregnancy on causes of piglet deaths prior to weaning. In: Proceedings of the British Society of Animal Science Annual Meeting 2000. 2000, Scarborough, United Kingdom: British Society of Animal Science.
• Turner SP, Ewen M, Rooke JA, Edwards SA. The effect of space allowance on performance, aggression and immune competence of growing pigs housed on straw deep-litter at different group sizes. Livestock Production Science 2000, 66(1), 47-55.
• Chamberlain HL, Edwards SA, Day JEL. The effects of handling and environmental enrichment on the welfare of finishing pigs. Proceedings of the British Society of Animal Science 2000 2000, 131.
• Turner S, Edwards SA, Sinclair AG. The interaction of liveweight and degree of competition on drinking behaviour in growing pigs at different group sizes. Applied Animal Behaviour Science 2000, 67(4), 321-334.
• Whittaker X, Edwards SA, Spoolder HAM, Lawrence AB, Corning S. The performance of group-housed sows offered a high fibre diet ad libitum. Animal Science 2000, 70, 85-93.
• Grigoriadis D, Edwards SA, English PR, Davidson FM. The reproductive behaviour of pigs in a dynamic service system for gilts. Applied Animal Behaviour Science 2000, 66(3), 203-216.
• Edwards SA. The role of animal welfare in quality assurance schemes for livestock products. In: Proceedings of the 1st PIC Espana Pork Chain Meeting. 2000, Barcelona, Spain.
• Edwards SA, Cia MC, Glasgow VL, Shanks M. Modification of body composition by altering the dietary lysine to energy ratio during rearing and the effect on reproductive performance of gilts. Animal Science, 66, 457-463 1998.