|
 |
1982-1987 : B.AgrSc - University College Dublin - Agricultural Science 1987-1989 : M.AgrSc - University College Dublin - Animal Science 1991-1994 : PhD - University College Dublin - Animal Nutrition 1994-1997 : Assistant Lecturer - Dep of Animal Science and Production, UCD 1997- 2002 : College lecturer - Dep of Animal Science and Production, UCD 2002 - 2006 : Senior Lecturer - Dep of Animal Science and Production, UCD Presently : Associate Professor of Animal Nutrition -School of Agric, Food Science and Veterinary Medicine, UCD |
| Improving gut health of the pig by diet My research programme examines how the various types of non digestible oligosaccharides (NDOs) and lactose sources can influence the microbial population of the gastro-intestinal tract of pigs, as well as piglet growth; nutrient digestibility, utilisation, and excretion; structure and function of the gut; and enteric diseases such as pathogenic E. coli and beneficial lactobacilli and the immune system. It also examines some the interactions between NDOs, enzymes and bacterial cultures on gastro-intestinal health on all of the above. Cellular and molecular mechanisms of action of prebiotics in the gut and the immune system are also been investigated as part of a collaboration programme. Reducing environmental impact of pig production My research focuses on nutritional strategies to reduce odour, ammonia emissions and the excretion of nitrogen and phosphorus in manure. This is done through diet manipulation of crude protein and amino acid profiles, use of complex oligosaccharides (ß-glucans and fucans), use of enzymes (phytase and non starch polysaccharides enzymes), probiotics and different carbohydrate sources. |
Ryan, W.F., Lynch, P.B., O'Doherty, J.V.; (2011) 'Effect of dietary phosphorus on the development of bone mineral density of pigs assessed using dual energy X-ray absorptiometry'. Livestock Science, 137 (1-3):101-107.  [Details] |
| Sweeney, T., Dillon, S., Fanning, J., Egan, J., O'Shea, C.J., Figat, S., Gutierrez, J.J.M., Mannion, C., Leonard, F., O'Doherty, J.V.; (2011) 'Evaluation of seaweed-derived polysaccharides on indices of gastrointestinal fermentation and selected populations of microbiota in newly weaned pigs challenged with Salmonella Typhimurium'. Animal Feed Science and Technology, 165 (1-2):85-94. [Details] |
| O'Shea, C.J., Sweeney, T., Lynch, M.B., Gahan, D.A., Flynn, B.A., O'Doherty, J.V.; (2011) 'The effect of introducing purified Beta-glucans to a wheat-based diet on total tract digestibility and gaseous manure emissions from pigs as compared with consumption of a beta-glucan-rich, barley-based diet'. Animal Feed Science and Technology, 165 (1-2):95-104. [Details] |
| Varley, P.F., Flynn, B., Callan, J.J., O'Doherty, J.V.; (2011) 'Effect of crude protein and phosphorus level on growth performance, bone mineralisation and phosphorus, calcium and nitrogen utilisation in grower-finisher pigs'. Archives of Animal Nutrition, 65 (2):134-147. [Details] |
| Leonard, S.G., Sweeney, T., Bahar, B., Lynch, B.P., O'Doherty, J.V.; (2011) 'Effect of dietary seaweed extracts and fish oil supplementation in sows on performance, intestinal microflora, intestinal morphology, volatile fatty acid concentrations and immune status of weaned pigs'. British Journal of Nutrition, 105 (4):549-560. [Details] |
| Varley, P.F., Sweeney, T., Ryan, M.T., O'Doherty, J.V.; (2011) 'The effect of phosphorus restriction during the weaner-grower phase on compensatory growth, serum osteocalcin and bone mineralization in gilts'. Livestock Science, 135 (2-3):282-288. [Details] |
|||||||||
| Ryan, W.F., Lynch, P.B., O'Doherty, J.V.; (2011) 'Compensatory effect of dietary phosphorus on performance of growing pigs and development of bone mineral density assessed using dual energy X-ray absorptiometry'. Livestock Science, 138 (1-3):89-95. [Details] |
|||||||||
| Hager, AS, Ryan, L.A.M., Schwab, C, Ganzle, M, O'Doherty, J.V and Arendt, E.K.; (2011) 'Influence of the soluble fibres inulin and oat B-glucan on quality of dough and bread'. European Food Research and Technology, 232 (3):405-413. [Details] |
|||||||||
| Varley, P.F., Flynn, B., Callan, J.J., O'Doherty, J.V.; (2011) 'Effect of phytase level in a low phosphorus diet on performance and bone development in weaner pigs and the subsequent effect on finisher pig bone development'. Livestock Science, 138 (1-3):152-158. [Details] |
|||||||||
| Meade, G., Pierce, K., O'Doherty, J.V., Mueller, C., Lanigan, G. and Mc Cabe, T.; (2011) 'Ammonia and nitrous oxide emissions following land application of high and low nitrogen pig manures to winter wheat at three growth stages'. Agriculture, Ecosystems and Environment, 140 (1-2):208-217. [DOI] [Details] | |||||||||
| Murphy, D.P., O'Doherty, J.V., Boland, T.M., O'Shea, C.J., Callan, J.J., Pierce, K.M., Lynch, M.B.; (2011) 'The effect of benzoic acid concentration on nitrogen metabolism, manure ammonia and odour emissions in finishing pigs'. Animal Feed Science and Technology, 163 (2-4):194-199. [Details] |
|||||||||
| Smith, A.G., O'Doherty, J.V., Reilly, P., Ryan, M.T., Bahar, B., Sweeney, T.; (2011) 'The effects of laminarin derived from Laminaria digitata on measurements of gut health: selected bacterial populations, intestinal fermentation, mucin gene expression and cytokine gene expression in the pig'. The British journal of nutrition, 105 (5):669-677. [Details] |
|||||||||
| Pauly, C., Spring, P., Gahan, D., Odoherty, J.V.; (2011) 'The effect of cereal type and enzyme supplementation on carcass characteristics, volatile fatty acids and intestinal microflora and boar taint in entire male pigs'. Animal, 5 (3):378-386. [Details] |
|||||||||
| Varley, P.F., Callan, J.J., O'Doherty, J.V.; (2011) 'Effect of dietary phosphorus and calcium level and phytase addition on performance, bone parameters, apparent nutrient digestibility, mineral and nitrogen utilization of weaner pigs and the subsequent effect on finisher pig bone parameters'. Animal Feed Science and Technology, 165 (3-4):201-209. [Details] |
|||||||||
| Lynch, M.B., Sweeney, T., Callan, J.J., O'Sullivan, J.T., O'Doherty, J.V.; (2010) 'The effect of dietary Laminaria-derived laminarin and fucoidan on nutrient digestibility, nitrogen utilisation, intestinal microflora and volatile fatty acid concentration in pigs'. Journal of the Science of Food and Agriculture, 90 (3):430-437. [Details] |
|||||||||
| O'Shea, C.J., Gahan, D.A., Lynch, M.B., Callan, J.J., O'Doherty, J.V.; (2010) 'Effect of beta-glucan source and exogenous enzyme supplementation on intestinal fermentation and manure odour and ammonia emissions from finisher boars'. Livestock Science, 134 (1-3):42-44. [Details] |
|||||||||
| Reilly, P., Sweeney, T., Smith, A.G., Pierce, K.M., Gahan, D.A., Callan, J.J., O'Doherty, J.V.; (2010) 'The effects of cereal-derived beta-glucans and enzyme supplementation on intestinal microbiota, nutrient digestibility and mineral metabolism in pigs'. Livestock Science, 133 (1-3):144-147. [Details] |
|||||||||
| Pauly, C., Spring-Staehli, P., O'Doherty, J.V., Kragten, S.A., Dubois, S., Messadène, J., Bee, G.; (2010) 'The effects of method of castration, rearing condition and diet on sensory quality of pork assessed by a trained panel'. Meat Science, 86 (2):498-504. [Details] |
|||||||||
| O'Doherty, J.V., Gahan, D.A., O'Shea, C., Callan, J.J., Pierce, K.M.; (2010) 'Effects of phytase and 25-hydroxyvitamin D3 inclusions on the performance, mineral balance and bone parameters of grower-finisher pigs fed low-phosphorus diets'. Animal, 4 (10):1634-1640. [Details] |
|||||||||
| O'Shea, C.J., Sweeney, T., Lynch, M.B., Callan, J.J., O'Doherty, J.V.; (2010) 'Effect of beta-glucans contained in barley- and oat-based diets and exogenous enzyme supplementation on gastrointestinal fermentation of finisher pigs and subsequent manure odor and ammonia emissions'. Journal of Animal Science, 88 (4):1411-1420. [Details] |
|||||||||
| Reilly, P., Sweeney, T., O'Shea, C., Pierce, K.M., Figat, S., Smith, A.G., Gahan, D.A., O'Doherty, J.V.; (2010) 'The effect of cereal-derived beta-glucans and exogenous enzyme supplementation on intestinal microflora, nutrient digestibility, mineral metabolism and volatile fatty acid concentrations in finisher pigs'. Animal Feed Science and Technology, 158 (3-4):165-176. [Details] |
|||||||||
| Smith, A.G., Ryan, M., O'Doherty, J.V., Reilly, P., Bahar, B., Sweeney, T.; (2010) 'Effects of dietary supplementation with laminarin derived from Laminaria hyperborea and Laminaria digitata on colonic mucin gene expression in pigs'. Livestock Science, 133 (1-3):204-206. [Details] |
|||||||||
| O'Doherty, J.V., McDonnell, P., Figat, S.; (2010) 'The effect of dietary laminarin and fucoidan in the diet of the weanling piglet on performance and selected faecal microbial populations'. Livestock Science, 134 (1-3):208-210. [Details] |
|||||||||
| O'Shea, C.J., Lynch, M.B., Callan, J.J., O'Doherty, J.V.; (2010) 'Dietary supplementation with chitosan at high and low crude protein concentrations promotes Enterobacteriaceae in the caecum and colon and increases manure odour emissions from finisher boars'. Livestock Science, 134 (1-3):198-201. [Details] |
|||||||||
| O'Shea CJ, Sweeney T, Lynch MB, Gahan DA, Callan JJ and O'Doherty, JV, ; (2010) 'Effect of beta-glucans contained in barley- and oat-based diets and exogenous enzyme supplementation on gastrointestinal fermentation of finisher pigs and subsequent manure odor and ammonia emissions'. Journal of Animal Science, 88 (4):1411-1420. [DOI] [Details] | |||||||||
| W. F. Ryan, P. B. Lynch, J. V. O'Doherty; (2010) 'Survey of cull sow bone and joint integrity in the Moorepark Research Farm herd'. VETERINARY RECORD, 166 (9):268-271. [Details] | |||||||||
| P. McDonnell, S. Figat and J. V. O'Doherty; (2010) 'The effect of dietary laminarin and fucoidan in the diet of the weanling piglet on performance, selected faecal microbial populations and volatile fatty acid concentrations'. Animal, 4 (4):579-585. [Details] | |||||||||
| J.V. O'Doherty, S. Dillon, S. Figat, J.J. Callan and T. Sweeney ; (2010) 'The effects of lactose inclusion and seaweed extract derived from Laminaria spp. on performance, nutrient digestibility and microbial populations in newly weaned piglets'. Animal Feed Science and Technology, 157 (3-4):173-180. [DOI] [Details] | |||||||||
| A Lejeune, F J , A P Moloney, B Earley, A Black, D P Campion, T Englishby, P Reilly, J. O¿Doherty and T Sweeney; (2010) 'Peripheral and gastrointestinal immune systems of healthy cattle raised outdoors at pasture or indoors on a concentrate-based ration'. BMC Veterinary Research, 6 . [DOI] [Details] | |||||||||
| M.B.Lynch, J.J.Callan and J.V.O¿Doherty ; (2009) 'The interaction between dietary crude protein and fermentable carbohydrate source on post weaning performance, diet digestibility and selected faecal microbial populations and volatile fatty acid concentration'. Livestock Science, 124 (1-3):93-100. [Details] | |||||||||
| C. Pauly, P. Spring, J. V. O¿Doherty, S. Ampuero Kragten, G. Bee; (2009) 'Growth performance, carcass characteristics and meat quality of group-penned surgically castrated, immunocastrated (Improvac®) and entire male pigs and individually penned entire male pigs'. Animal, 3 (7):1057-1066. [Details] | |||||||||
| C.J. O¿Shea., M.B.Lynch, J.J.Callan and J.V.O¿Doherty ; (2009) 'Ammonia emissions and dry matter of separated pig manure fractions as affected by crude protein concentration and sugar beet pulp inclusion of finishing pig diets'. Agriculture, Ecosystems and Environment, 131 (3-4):154-160. [Details] | |||||||||
| P. Reilly,J.V. O¿Doherty , K.M. Pierce, J.J. Callan, J.T. O¿ Sullivan and T. Sweeney; (2008) 'The effects of seaweed extract inclusion on gut health and immune status of the weaned pig'. Animal, 2 (10):1465-1473. [Details] | |||||||||
| D.A.Gahan, M.B.Lynch, J.J.Callan, J.T. O¿ Sullivan and J.V. O¿Doherty ; (2009) 'Performance of weanling piglets offered low, medium or high lactose diets supplemented with a seaweed extract from Laminaria spp'. Animal, 3 (1):24-31. [Details] | |||||||||
| C. Pauly, P. Spring, J. O¿Doherty, S. Ampuero K., G. Bee; (2008) 'Performance, meat quality and boat taint of castrates and entire male pigs fed a standard and a raw potato starch-enriched diet'. Animal, 2 (11):1707-1715. [Details] | |||||||||
| G.E. Gardiner, A.J. Campbell, J.V. O'Doherty, E. Pierce, P.B. Lynch, F.C. Leonard, C.; (2008) 'Effect of Ascophyllum nodosum extract on growth performance, diet digestibility, carcass characteristics and selected intestinal microflora populations of grower-finisher pigs'. Animal Feed Science and Technology, 141 :259-273. [Details] | |||||||||
| Lynch, M.B., O'Shea, C.J., Sweeney, T. Callan, J.J. and O'Doherty, J.V.; (2008) 'Effect of crude protein concentration and sugar beet pulp on nutrient digestibility, nitrogen excretion, intestinal fermentation and manure ammonia and odour emissions from finisher pigs. '. Animal, 2 (3):425-434. [Details] | |||||||||
| Hide | |||||||||
| J.V. O' Doherty; (2008) Processing and enzyme supplementation of cereal grains for pigs Western Canadian nutrition conference [Details] |
| Nonruminant production (swine and poultry) Advanced Swine Production Monogastric Nutrition |
