Emeritus Professor Norm Williamson staff profile picture

Contact details +64 (06) 356 9099  ext. 85175

Emeritus Professor Norm Williamson

Emeritus Professor of Veterinary Medicine

School of Veterinary Science

Norm graduated from Melbourne University in 1968, stayed on as a tutor in the farm services clinic and did a Masters' degree in cattle reproductive health management. He gained a MACVSc (MANZCVS) in the medicine and preventive medicine of dairy cattle in 1977. He joined the Department of Agriculture, Victoria in 1973 and oversaw a large herd health project while still stationed at the Vet School in Werribee. From 1980 to 1989 he was an Associate, then Full Professor of Theriogenology and Herd Health at the University of Minnesota in the USA. While there he gained a Diploma of the American College of Theriogenologists in 1984. He moved to New Zealand as Professor of Veterinary Medicine and Head of the Department of Veterinary Clinical Sciences in 1989. In 1998 he was appointed as Head of Undergraduate Teaching in the newly formed Institute of Veterinary, Animal and Biomedical Sciences, then in 2000 he was appointed as the Programme Director, Veterinary Science in the College of Science and stepped down in June 2011. Norm's teaching and research interests are in cattle health and management. Particular interests are in cattle reproduction, mastitis, heifer rearing, neosporosis and herd health records. Norm has authored or co-authored over 75 refereed publications and over 200 other publications and presentations. He also has a great interest in veterinary education of all types.

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Research Expertise

Research Interests

My research is into factors limiting the health, welfare and productivity of ruminants, particularly dairy cattle. Throughout my career my approach has been to identify factors most limiting the health and productivity of dairy cattle and to undertake research to remove or overcome them. Mastitis remains the most prevalent infectious disease of dairy cattle and still limits the health, welfare and productivity of dairy cows. It is a focus of my research efforts. Reproductive inefficiency has been identified by DairyNZ as a priority area for research and development and this has been a continuing area of research for me. This is addressed through continuing research on fertility monitoring, oestrus detection methods and also on Neospora caninum abortion. The latter severely limits herd reproductive performance in herds suffering outbreaks and chronically reduces reproductive performance in endemically infected herds. I have consistently used computer based technology to collect and manipulate data to provide farmers with information that is useful to them in making management decisions for cows and herds.

Thematics

Future Food Systems

Area of Expertise

Field of research codes
Agricultural And Veterinary Sciences (070000): Veterinary Epidemiology (070704): Veterinary Medicine (070706): Veterinary Sciences (070700)

Research Projects

Summary of Research Projects

Position Current Completed
Project Leader 4 63
Team Member 0 1

Research Outputs

Journal

Notcovich, S., DeNicolo, G., Flint, SH., Williamson, NB., Gedye, K., Grinberg, A., . . . Lopez-Villalobos, N. (2018). Biofilm-forming potential of Staphylococcus aureus isolated from bovine mastitis in New Zealand. Veterinary Sciences. 5(1)
[Journal article]Authored by: Flint, S., Gedye, K., Grinberg, A., Lopez-Villalobos, N., Williamson, N.
Parkinson, TJ., Weston, JF., & Williamson, NB. (2017). Curricular review and renewal at Massey University: A process to implement improved learning practices. Journal of Veterinary Medical Education. 44(3), 450-458
[Journal article]Authored by: Weston, J., Williamson, N.
Notcovich, S., deNicolo, G., Williamson, NB., Grinberg, A., Lopez-Villalobos, N., & Petrovski, KR. (2016). The ability of four strains of Streptococcus uberis to induce clinical mastitis after intramammary inoculation in lactating cows. New Zealand Veterinary Journal. 64(4), 218-223
[Journal article]Authored by: Grinberg, A., Lopez-Villalobos, N., Williamson, N.
Petrovski, KR., Grinberg, A., Williamson, NB., Abdalla, ME., Lopez-Villalobos, N., Parkinson, TJ., . . . Rapnicki, P. (2015). Susceptibility to antimicrobials of mastitis-causing Staphylococcus aureus, Streptococcus uberis and Str. dysgalactiae from New Zealand and the USA as assessed by the disk diffusion test. Australian Veterinary Journal. 93(7), 227-233
[Journal article]Authored by: Grinberg, A., Lopez-Villalobos, N., Williamson, N.
Syed-Hussain, SS., Howe, L., Pomroy, WE., West, DM., Hardcastle, M., & Williamson, NB. (2015). Study on the use of toltrazuril to eliminate Neospora caninum in congenitally infected lambs born from experimentally infected ewes. Veterinary Parasitology. 210(3-4), 141-144
[Journal article]Authored by: Howe, L., Pomroy, W., Williamson, N.
Syed-Hussain, SS., Howe, L., Pomroy, WE., West, DM., Hardcastle, M., & Williamson, NB. (2015). Vertical transmission in experimentally infected sheep despite previous inoculation with Neospora caninum NcNZ1 isolate. Veterinary Parasitology. 208(3-4), 150-158
[Journal article]Authored by: Howe, L., Pomroy, W., Williamson, N.
Syed-Hussain, SS., Howe, L., Pomroy, WE., West, DM., Smith, SL., & Williamson, NB. (2014). Adaptation of a commercial ELISA to determine the IgG avidity in sheep experimentally and naturally infected with Neospora caninum. Veterinary Parasitology. 203(1-2), 21-28
[Journal article]Authored by: Howe, L., Pomroy, W., Williamson, N.
Alawneh, J., Stevenson, M., Williamson, N., & Lopez-Villalobos, N. (2014). The use of liveweight change as an indicator of oestrus in a seasonally calving, pasture-fed dairy herd. Reproduction in Domestic Animals.
[Journal article]Authored by: Lopez-Villalobos, N., Williamson, N.
Alawneh, JI., Stevenson, MA., Williamson, NB., Lopez-Villalobos, N., & Otley, T. (2014). The effects of liveweight loss and milk production on the risk of lameness in a seasonally calving, pasture fed dairy herd in New Zealand. Preventive Veterinary Medicine. 113(1), 72-79
[Journal article]Authored by: Lopez-Villalobos, N., Williamson, N.
Syed-Hussain, SS., Howe, L., Pomroy, WE., West, DM., Smith, SL., & Williamson, NB. (2013). Detection of Neospora caninum DNA in semen of experimental infected rams with no evidence of horizontal transmission in ewes. Veterinary Parasitology. 197(3-4), 534-542
[Journal article]Authored by: Howe, L., Pomroy, W., Williamson, N.
Alawneh, JI., Stevenson, MA., Williamson, NB., Lopez-Villalobos, N., & Otley, T. (2012). The effect of liveweight change on reproductive performance in a seasonally calving, pasture fed dairy herd. Livestock Science. 145(1-3), 131-139
[Journal article]Authored by: Lopez-Villalobos, N., Williamson, N.
Alawneh, JI., Stevenson, MA., Williamson, NB., Lopez-Villalobos, N., & Otley, T. (2012). The effect of clinical lameness on liveweight in a seasonally calving, pasture-fed dairy herd. Journal of Dairy Science. 95(2), 663-669
[Journal article]Authored by: Lopez-Villalobos, N., Williamson, N.
Weston, JF., Heuer, C., & Williamson, NB. (2012). Efficacy of a Neospora caninum killed tachyzoite vaccine in preventing abortion and vertical transmission in dairy cattle. Preventive Veterinary Medicine. 103(2-3), 136-144
[Journal article]Authored by: Heuer, C., Weston, J., Williamson, N.
Weston, JF., Heuer, C., Parkinson, TJ., & Williamson, NB. (2012). Causes of abortion on New Zealand dairy farms with a history of abortion associated with Neospora caninum. New Zealand Veterinary Journal. 60(1), 27-34
[Journal article]Authored by: Heuer, C., Weston, J., Williamson, N.
Weston, JF., Heuer, C., Parkinson, TJ., & Williamson, NB. (2012). Causes of abortion on New Zealand dairy farms with a history of Neospora caninum-associated abortion. New Zealand Veterinary Journal. 60(1), 35-41
[Journal article]Authored by: Weston, J., Williamson, N.
Stafford, K., & Williamson, N. (2011). Letter to the Editor. Journal of Veterinary Medical Education. 38(3), 210-210 Retrieved from http://utpjournals.metapress.com/content/q43x277105qg7474/?genre=article&id=doi%3a10.3138%2fjvme.38.3.210
[Journal article]Authored by: Stafford, K., Williamson, N.
Weston, JF., Heuer, C., & Williamson, NB. (2011). Efficacy of a Neospora caninum killed tachyzoite vaccine in preventing abortion and vertical transmission in dairy cattle. Preventive Veterinary Medicine.
[Journal article]Authored by: Heuer, C., Weston, J., Williamson, N.
Alawneh, JI., Stevenson, MA., Williamson, NB., Lopez-Villalobos, N., & Otley, T. (2011). Automatic recording of daily walkover liveweight of dairy cattle at pasture in the first 100 days in milk. Journal of Dairy Science. 94(9), 4431-4440
[Journal article]Authored by: Lopez-Villalobos, N., Williamson, N.
Petrovski, KR., Williamson, NB., Lopez-Villalobos, N., Parkinson, TJ., & Tucker, IG. (2011). Culture results from milk samples submitted to veterinary diagnostic laboratories from August 2003 to December 2006 in New Zealand. New Zealand Veterinary Journal. 59(6), 317-322
[Journal article]Authored by: Lopez-Villalobos, N., Williamson, N.
Petrovski, KR., Caicedo-Caldas, A., Williamson, NB., Lopez-Villalobos, N., Grinberg, A., Parkinson, TJ., . . . Tucker, IG. (2011). Efficacy of a novel internal dry period teat sealant containing 0.5% chlorhexidine against experimental challenge with Streptococcus uberis in dairy cattle. Journal of Dairy Science. 94(7), 3366-3375
[Journal article]Authored by: Grinberg, A., Lopez-Villalobos, N., Williamson, N.
Petrovski, KR., Heuer, C., Parkinson, TJ., & Williamson, NB. (2009). The incidence and aetiology of clinical bovine mastitis on 14 farms in Northland, New Zealand. New Zealand Veterinary Journal. 57(2), 109-115
[Journal article]Authored by: Heuer, C., Williamson, N.
Weston, JF., Howe, L., Collett, MG., Pattison, RS., Williamson, NB., West, DM., . . . Kenyon, PR. (2009). Dose-titration challenge of young pregnant sheep with Neospora caninum tachyzoites. Veterinary Parasitology. 164(2-4), 183-191
[Journal article]Authored by: Collett, M., Howe, L., Kenyon, P., Morris, S., Pomroy, W., Weston, J., Williamson, N.
Howe, L., West, DM., Collett, MG., Tattersfield, G., Pattison, RS., Pomroy, WE., . . . Williamson, NB. (2008). The role of Neospora caninum in three cases of unexplained ewe abortions in the southern North Island of New Zealand. Small Ruminant Research. 75(2-3), 115-122
[Journal article]Authored by: Collett, M., Howe, L., Kenyon, P., Morris, S., Pomroy, W., Williamson, N.
Parkinson, TJ., Williamson, NB., & Guilford, WG. (2007). The new clinical curriculum at Massey University. Vetscript. 20(2), 22-24
[Journal article]Authored by: Williamson, N.
Parkinson, TJ., Williamson, NB., & Guilford, WG. (2006). Developments in exposure to clinical practices in the BVSc degree course at Massey University. Vetscript. 19(1), 20-21
[Journal article]Authored by: Williamson, N.
Alawneh, JI., Williamson, NB., & Bailey, D. (2006). Comparison of a camera-software system and typical farm management for detecting oestrus in dairy cattle at pasture. New Zealand Veterinary Journal. 54(2), 73-77
[Journal article]Authored by: Bailey, D., Williamson, N.
Weston, JF., Williamson, NB., & Pomroy, WE. (2005). Associations between pregnancy outcome and serological response to Neospora caninum among a group of dairy heifers. New Zealand Veterinary Journal. 53(2), 142-148
[Journal article]Authored by: Pomroy, W., Weston, J., Williamson, N.
Okeoma, CM., Stowell, KM., Williamson, NB., & Pomroy, WE. (2005). Neospora caninum: Quantification of DNA in the blood of naturally infected aborted and pregnant cows using real-time PCR. Experimental Parasitology. 110(1), 48-55
[Journal article]Authored by: Pomroy, W., Stowell, K., Williamson, N.
Okeoma, CM., Williamson, NB., Pomroy, WE., & Stowell, KM. (2004). Recognition patterns of Neospora caninum tachyzoite antigens by bovine IgG at different IFAT titres. Parasite Immunology. 26(4), 177-185
[Journal article]Authored by: Pomroy, W., Stowell, K., Williamson, N.
Okeoma, CM., Williamson, NB., Pomroy, WE., Stowell, KM., & Gillespie, L. (2004). The use of PCR to detect Neospora caninum DNA in the blood of naturally infected cows. Veterinary Parasitology. 122(4), 307-315
[Journal article]Authored by: Pomroy, W., Stowell, K., Williamson, N.
Okeoma, CM., Williamson, NB., Pomroy, WE., Stowell, KM., & Gillespie, LM. (2004). Isolation and molecular characterisation of neospora caninum in cattle in New Zealand. New Zealand Veterinary Journal. 52(6), 364-370
[Journal article]Authored by: Pomroy, W., Stowell, K., Williamson, N.
Stevenson, MA., Williamson, NB., & Russell, DJ. (2003). Nutrient balance in the diet of spring-calving, pasture-fed dairy cows. New Zealand Veterinary Journal. 51(2), 81-88
[Journal article]Authored by: Williamson, N.
Antony, A., & Williamson, NB. (2003). Prevalence of antibodies to neospora caninum in dogs of rural or urban origin in central New Zealand. New Zealand Veterinary Journal. 51(5), 232-237
[Journal article]Authored by: Williamson, N.
Williamson, NB. (2002). The review and revision of the Massey University BVSc curriculum. VETscript. 15(7), 12
[Journal article]Authored by: Williamson, N.
Pfeiffer, DU., Williamson, NB., Reichel, MP., Wichtel, JJ., & Teague, WR. (2002). A longitudinal study of Neospora caninum infection on a dairy farm in New Zealand. Preventive Veterinary Medicine. 54(1), 11-24
[Journal article]Authored by: Williamson, N.
O'Keefe, JS., Jenner, JA., Sandifer, NC., Antony, A., & Williamson, NB. (2002). A serosurvey for antibodies to Leptospira in dogs in the lower North Island of New Zealand. New Zealand Veterinary Journal. 50(1), 23-25
[Journal article]Authored by: Williamson, N.
Fathalla, M., Williamson, NB., & Parkinson, TJ. (2001). A case of bovine placental mole associated with twin embryonic death and resorption. New Zealand Veterinary Journal. 49(3), 119-120
[Journal article]Authored by: Williamson, N.
Abdullah, P., Williamson, NB., Parkinson, TJ., & Fathalla, M. (2001). Comparison of oestrus synchronisation programmes in dairy cattle using oestradiol benzoate, short-acting progesterone and cloprostenol, or buserelin and cloprostenol. New Zealand Veterinary Journal. 49(5), 201-210
[Journal article]Authored by: Williamson, N.
Antony, A., & Williamson, NB. (2001). Recent advances in understanding the epidemiology of neospora caninum in cattle. New Zealand Veterinary Journal. 49(2), 42-47
[Journal article]Authored by: Williamson, N.
Douglas, VL., Fenwick, SG., Pfeiffer, DU., Williamson, NB., & Holmes, CW. (2000). Genomic typing of Streptococcus uberis isolates from cases of mastitis, in New Zealand dairy cows, using pulsed-field gel electrophoresis. Veterinary Microbiology. 75(1), 27-41
[Journal article]Authored by: Williamson, N.
Stevenson, MA., Williamson, NB., Hardon, DW., & Hardon, DW. (1999). The effects of calcium supplementation of dairy cattle after calving on milk, milk fat and protein production, and fertility. New Zealand Veterinary Journal. 47(2), 53-60
[Journal article]Authored by: Williamson, N.
Hanlon, DW., Williamson, NB., Steffert, IJ., Wichtel, JJ., & Pfeiffer, DU. (1997). Re-insertion of a progesterone-containing intravaginal device to synchronise returns to oestrus in dairy heifers. New Zealand Veterinary Journal. 45(1), 15-18
[Journal article]Authored by: Williamson, N.
Hanlon, DW., Williamson, NB., Wichtel, JJ., Steffert, IJ., Craigie, AL., & Pfeiffer, DU. (1997). Ovulatory responses and plasma luteinizing hormone concentrations in dairy heifers after treatment with exogenous progesterone and estradiol benzoate. Theriogenology. 47(5), 963-975
[Journal article]Authored by: Williamson, N.
Wichtel, JJ., Craigie, AL., Freeman, DA., Varela-Alvarez, H., & Williamson, NB. (1996). Effect of Selenium and Iodine Supplementation on Growth Rate and on Thyroid and Somatotropic Function in Dairy Calves at Pasture. Journal of Dairy Science. 79(10), 1865-1872
[Journal article]Authored by: Williamson, N.
Parton, K., Gardner, D., & Williamson, NB. (1996). Isocupressic acid, an abortifacient component of Cupressus macrocarpa. New Zealand Veterinary Journal. 44(3), 109-111
[Journal article]Authored by: Parton, K., Williamson, N.
Wichtel, JJ., Craigie, AL., Thompson, KG., & Williamson, NB. (1996). Effect of selenium and a-tocopherol supplementation on postpartum reproductive function of dairy heifers at pasture. Theriogenology. 46(3), 491-502
[Journal article]Authored by: Williamson, N.
Wichtel, JJ., Thompson, KG., & Williamson, NB. (1996). Serum glutathione peroxidase activity reflects short-term increases in selenium intake in goats. New Zealand Veterinary Journal. 44(4), 148-150
[Journal article]Authored by: Williamson, N.
Wichtel, JJ., Thompson, KG., Craigie, AL., & Williamson, NB. (1996). Effects of selenium and iodine supplementation on the growth rate, mohair production, and thyroid status of Angora goat kids. New Zealand Journal of Agricultural Research. 39(1), 111-115
[Journal article]Authored by: Williamson, N.
Wichtel, JJ., Thompson, KG., Craigie, AL., & Williamson, NB. (1996). Short-term alteration in voluntary feed intake after selenium supplementation in Angora goat kids. New Zealand Journal of Agricultural Research. 39(1), 107-110
[Journal article]Authored by: Williamson, N.
Hayes, DP., Pfeiffer, DU., & Williamson, NB. (1996). Effect of Intraruminal Monensin Capsules on Reproductive Performance and Milk Production of Dairy Cows Fed Pasture. Journal of Dairy Science. 79(6), 1000-1008
[Journal article]Authored by: Williamson, N.
Hanlon, DW., Williamson, NB., Wichtel, JJ., Steffert, IJ., Craigie, AL., & Pfeiffer, DU. (1996). The effect of estradiol benzoate administration on estrous response and synchronized pregnancy rate in dairy heifers after treatment with exogenous progesterone. Theriogenology. 45(4), 775-785
[Journal article]Authored by: Williamson, N.
Wichtel, JJ., Freeman, DA., Craigie, AL., Varela-Alvarez, H., & Williamson, NB. (1996). Alpha-tocopherol, selenium and polyunsaturated fatty acid concentrations in the serum and feed of spring-calving dairy heifers. New Zealand Veterinary Journal. 44(1), 15-21
[Journal article]Authored by: Williamson, N.
McDougall, S., Burke, CR., Macmillan, KL., & Williamson, NB. (1995). Patterns of follicular development during periods of anovulation in pasture-fed dairy cows after calving. Research in Veterinary Science. 58(3), 212-216
[Journal article]Authored by: Williamson, N.
McDougall, S., Williamson, NB., & Macmillan, KL. (1995). GnRH induces ovulation of a dominant follicle in primiparous dairy cows undergoing anovulatory follicle turnover. Animal Reproduction Science. 39(3), 205-214
[Journal article]Authored by: Williamson, N.
McDougall, S., Clark, DA., Macmillan, KL., & Williamson, NB. (1995). Some effects of feeding pasture silage as a supplement to pasture on reproductive performance in lactating dairy cows. New Zealand Veterinary Journal. 43(1), 4-9
[Journal article]Authored by: Williamson, N.
Wichtel, JJ., Craigie, AL., Williamson, NB., & Varela-Alvarez, H. (1994). The effect of intra-ruminal selenium pellets on growth rate, lactation and reproductive efficiency in dairy cattle. New Zealand Veterinary Journal. 42(6), 205-210
[Journal article]Authored by: Williamson, N.
Tranter, WP., Morris, RS., Dohoo, IR., & Williamson, NB. (1993). A case-control study of lameness in dairy cows. Preventive Veterinary Medicine. 15(2-3), 191-203
[Journal article]Authored by: Williamson, N.
Tranter, WP., Morris, RS., & Williamson, NB. (1991). A longitudinal study of the hooves of non-lame cows. New Zealand Veterinary Journal. 39(2), 53-57
[Journal article]Authored by: Williamson, N.
Williamson, NB., Cannon, RM., Blood, DC., & Morris, RS. (1978). A HEALTH PROGRAM FOR COMMERCIAL DAIRY HERDS: 5. The Occurrence of Specific Disease Entities. Australian Veterinary Journal. 54(5), 252-256
[Journal article]Authored by: Williamson, N.
Morris, RS., Williamson, NB., Blood, DC., Cannon, RM., & Cannon, CM. (1978). A HEALTH PROGRAM FOR COMMERCIAL DAIRY HERDS: 3. Changes in Reproductive Performance. Australian Veterinary Journal. 54(5), 231-246
[Journal article]Authored by: Williamson, N.
Blood, DC., Morris, RS., Williamson, NB., Cannon, CM., & Cannon, RM. (1978). A HEALTH PROGRAM FOR COMMERCIAL DAIRY HERDS: 1. Objectives and Methods. Australian Veterinary Journal. 54(5), 207-215
[Journal article]Authored by: Williamson, N.
Williamson, NB., Morris, RS., & Anderson, GA. (1978). PREGNANCY RATES AND NON‐RETURN RATES FOLLOWING ARTIFICIAL AND NATURAL BREEDING IN DAIRY HERDS. Australian Veterinary Journal. 54(3), 111-114
[Journal article]Authored by: Williamson, N.
Morris, RS., Blood, DC., Williamson, NB., Cannon, CM., & Cannon, RM. (1978). A HEALTH PROGRAM FOR COMMERCIAL DAIRY HERDS: 4. Changes in Mastitis Prevalence. Australian Veterinary Journal. 54(5), 247-251
[Journal article]Authored by: Williamson, N.
Cannon, RM., Morris, RS., Williamson, NB., Cannon, CM., & Blood, DC. (1978). A HEALTH PROGRAM FOR COMMERCIAL DAIRY HERDS: 2. Data Processing. Australian Veterinary Journal. 54(5), 216-230
[Journal article]Authored by: Williamson, N.
BLOOD, DC., WILLIAMSON, NB., & MORRIS, RS. (1978). FUTURE OF LARGE ANIMAL PRACTICE. VETERINARY RECORD. 103(11), 246-246
[Journal article]Authored by: Williamson, N.
MORRIS, RS., WILLIAMSON, NB., & BLOOD, DC. (1977). HERD HEALTH-PROGRAMS/S. AUSTRALIAN VETERINARY PRACTITIONER. 7(1), 41-43
[Journal article]Authored by: Williamson, N.
Williamson, NB., Morris, RS., Blood, DC., & Cannon, CM. (1972). A study of oestrous behaviour and oestrus detection methods in a large commercial dairy herd. I. The relative efficiency of methods of oestrus detection.. The Veterinary record. 91(3), 50-58
[Journal article]Authored by: Williamson, N.
Williamson, NB., Morris, RS., Blood, DC., Cannon, CM., & Wright, PJ. (1972). A study of oestrous behaviour and oestrus detection methods in a large commercial dairy herd. II. Oestrous signs and behaviour patterns.. The Veterinary record. 91(3), 58-62
[Journal article]Authored by: Williamson, N.

Book

Williamson, N. (Ed.) (2008). The Farmers' Veterinary Guide. New Zealand: 3mediagroup
[Edited Book]Edited by: Williamson, N.
Dacre, KJ., Flint, P., Parton, KH., Smith, SL., Neumann, E., Weston, J., . . . Williamson, NB. (2008). Poisonous Plants. In N. Williamson (Ed.) The Farmers Veterinary Guide. (pp. 231 - 240). Auckland, New Zealand: 3media Group
[Chapter]Authored by: Neumann, E., Parton, K., Weston, J., Williamson, N.

Thesis

Weston, JF. (2012). Investigations into the control of neosporosis in cattle. (Doctoral Thesis, Massey University, Palmerston North, New Zealand)
[Doctoral Thesis]Authored by: Weston, J.Edited by: Heuer, C., Pomroy, W., Williamson, N.

IP

Williamson, NB.(2005). . 542413: The Intellectual Property Office of New Zealand: Method for reducing the incidence of mastitis
[Patent]Authored by: Williamson, N.
Williamson, NB.(2003). . 519743: Commissioner of Patents, Trademarks & Designs, New Zealand: Automated oestrus detection in animals
[Patent]Authored by: Williamson, N.

Report

Petrovski, K., & Williamson, NB. (2007). A review of the published literature on bovine mastitis (2004-2006) with reference to the SAMM Plan.
[Commissioned Report]Authored by: Williamson, N.

Conference

Yapura, MJ., williamson, N., Olde Riekerink, R., & Emslie, R. (2016). Simplification of prosynch/plus protocol for dairy cattle: Single injection of cloprostenol combined with eCG. Poster session presented at the meeting of 18th International Congress on Animal Reproduction (ICAR). Tours, France
[Conference Poster]Authored by: Williamson, N., Yapura, M.
Syed-Hussain, SS., Howe, L., Pomroy, B., West, DM., Smith, S., & Williamson, N. (2013). Transmission of Neospora Caninum to sheep by transfer through semen. Poster session presented at the meeting of 8th International Sheep Veterinary Congress: Connecting Sheep and Science. Rotorua, New Zealand
[Conference Poster]Authored by: Howe, L., Pomroy, W., Williamson, N.
Petrovski, K., Williamson, NB., & de Nicolo, G.(2011, December 5). Studies by the Mastitis Research Centre at Massey University. (pp. 15 - 15). , IVABS Research Colloquium
[Conference Abstract]Authored by: Williamson, N.
Petrovski, K., Williamson, NB., & de Nicolo, G. (2011, December). Studies by the Mastitis Research Centre at Massey University. Presented at IVABS Research Colloquium. Palmerston North, New Zealand.
[Conference Oral Presentation]Authored by: Williamson, N.
Syed-Hussain, SS., Howe, LJ., Pomroy, WE., West, DM., Smith, SL., & Williamson, NB.(2011, August 21). Transmission of Neospora caninum to sheep by transfer through semen. (pp. 62 - 62). , 23rd International Conference of the World Association for the Advancement of Veterinary Parasitology
[Conference Abstract]Authored by: Howe, L., Pomroy, W., Williamson, N.
Syed-Hussain, SS., Howe, LJ., Pomroy, WE., West, DM., Smith, SL., & Williamson, NB.(2011, October 27). Transmission of Neospora caninum to sheep by transfer through semen. (pp. 26 - 26). , New Zealand Society for Parasitology Annual Meeting No. 39
[Conference Abstract]Authored by: Howe, L., Pomroy, W., Williamson, N.
Alawneh, JI., Stevenson, MA., Williamson, NB., Lopez-Villalobos, N., & Otley, T. (2011). Cost benefit analysis of monitoring daily liveweight to optimise the health and productivity of dairy herds at pasture. Proceedings of the Epidemiology & Animal Health Management Branch of the New Zealand Veterinary Association. (pp. 3.10.1 - 3.10.6). New Zealand: Epidemiology & Animal Health Management Branch of the New Zealand Veterinary Association Annual Conference
[Conference Paper in Published Proceedings]Authored by: Lopez-Villalobos, N., Williamson, N.
Alawneh, JI., Stevenson, MA., Williamson, NB., Lopez-Villalobos, N., & Otley, T. (2013). The effects of liveweight loss and milk production on the risk of lameness in a seasonally calving, pasture fed dairy herd in New Zealand. In Preventive Veterinary Medicine
[Conference Abstract]Authored by: Lopez-Villalobos, N., Williamson, N.
Mills, J., Coleman, G., & Williamson, N. (2010, May). ALTC collaborative grant aftermath. Developing a shared approach to core clinical competency assessment. Presented at Australian Veterinary Association and New Zealand Veterinary Association Pan Pacific Conference. Brisbane, Queensland, Australia.
[Conference Oral Presentation]Authored by: Williamson, N.
Williamson, N. (2010, May). Developing a curriculum database. Presented at Australian Veterinary Association and New Zealand Veterinary Association Pan Pacific Conference. Brisbane, Queensland, Australia.
[Conference Oral Presentation]Authored by: Williamson, N.
Petrovski, K., & Williamson, NB. (2010). Role of veterinarians in the udder health management of dairy farms. In Mastitis Research into Practice: Proceedings of the 5th IDF Mastitis Conference(pp. 666 - 666). , 5th IDF Mastitis Conference: Vet Learn
[Conference Abstract]Authored by: Williamson, N.
Petrovski, K., Lopez Villalobos, N., & Williamson, NB. (2010). The elimination time of Lactapen G from milk following intramammary administration. In . VetLearn (Ed.) Mastitis Research into Practice: Proceedings of the 5th IDF Mastitis Conference. (pp. 580 - 585). : 5th IDF Mastitis Conference
[Conference Paper in Published Proceedings]Authored by: Lopez-Villalobos, N., Williamson, N.
Williamson, NB., Petrovski, K., & Fernandez, CA. (2008). Challenge with Streptococcus uberis to evaluate the efficacy of teat sealers in preventing mastitis. In 25th World Buiatrics Congress(pp. 52 - 52). : International Veterinary Information Service
[Conference Abstract]Authored by: Williamson, N.
Petrovski, K., Williamson, NB., Fernandez, C., Grinberg, A., Lopez Villalobos, N., & Parkinson, TJ. (2007). Effects of experimentally induced and treated streptococcus uberis mastitis early in the dry period on production in the subsequent lactation. Proceedings of the New Zealand Society of Animal Production. Vol. 67 (pp. 303 - 306). : New Zealand Society of Animal Production
[Conference Paper in Published Proceedings]Authored by: Grinberg, A., Lopez-Villalobos, N., Williamson, N.
Weston, JF., Williamson, NB., Heuer, C., Pomroy, WE., & Okeoma, CM. (2007). Investigation of early loss of pregnancy and the role of Neospora caninum among heifers on one New Zealand dairy farm. Poster session presented at the meeting of Society of Dairy Cattle Veterinarians - New Zealand Veterinary Association Conference. Christchurch, NZ
[Conference Poster]Authored by: Heuer, C., Pomroy, W., Weston, J., Williamson, N.
Weston, JF., Williamson, NB., & Heuer, C. (2007). A novel method of horizontal transmission of Neospora caninum to pregnant dairy cattle. Poster session presented at the meeting of Society of Dairy Cattle Veterinarians - New Zealand Veterinary Association Conference. Christchurch, NZ
[Conference Poster]Authored by: Heuer, C., Weston, J., Williamson, N.
Williamson, NB.La influencia de la genetica Holstein en la produccion y reproduccion de vacas lecheras. . Villa Maria, Argentina
[Conference Paper]Authored by: Williamson, N.
Williamson, NB.Efectos nutricionales en fertilidad. . Villa Maria, Argentina
[Conference Paper]Authored by: Williamson, N.
Williamson, NB.(2006). Aborto bovino: Interacciones experimentales y de campo, entre BVD y Neospora caninum. Paper presented at the meeting of Sextas Jornadas de Reproduccion Bovina. Villa Maria, Argentina
[Conference Paper]Authored by: Williamson, N.
Williamson, NB.Sincronizacion del estro y programas de induccion. . Villa Maria, Argentina
[Conference Paper]Authored by: Williamson, N.
Weston, JF., Williamson, NB., & Heuer, C. (2006). A novel method of horizontal transmission of Neospora caninum to pregnant dairy cattle. Poster session presented at the meeting of 11th International Symposium on Veterinary Epidemiology and Economics. Cairns, QLD
[Conference Poster]Authored by: Heuer, C., Weston, J., Williamson, N.
Weston, JF., Williamson, NB., & Heuer, C. (2006). A novel method of horizontal transmission of Neospora caninum to pregnant dairy cattle. In Proceedings of the 11th International Symposium on Veterinary Epidemiology and Economics(pp. 930 - 930). , 11th International Symposium on Veterinary Epidemiology and Economics: International Society for Veterinary Epidemiology and Economics
[Conference Abstract]Authored by: Heuer, C., Weston, J., Williamson, N.
Williamson, NB.(2005). Automated heat detection for dairy cows: Information about a research project trialling heat detectors on the University's Number 4 farm. In Workshop Session
[Conference Other]Authored by: Williamson, N.
Howe, LJ., West, DM., Tattersfield, GJ., Pomroy, WE., & Williamson, NB. (2005). Preliminary investigations into the role of Neospora in unexplained ewe abortions in the southern North Island. (pp. 23). , Institute of Veterinary, Animal and Biomedical Sciences Research Colloquium Palmerston North, NZ: Massey University, Institute of Veterinary, Animal and Biomedical Sciences
[Conference Abstract]Authored by: Howe, L., Pomroy, W., Williamson, N.
Okeoma, CM., Williamson, NB., Pomroy, WE., Stowell, KM., & Gillespie, L. (2005). Further studies on Neospora caninum including its isolation in New Zealand and the first isolation of circulating N. caninum DNA in cattle. In New Zealand Journal of Zoology Vol. 32 (pp. 277). Wellington, NZ: Royal Society of New Zealand
[Conference Abstract]Authored by: Pomroy, W., Stowell, K., Williamson, N.
Weston, JF., Williamson, NB., & Pomroy, WE. (2005). Prospective cohort study of pregnancy outcome in dairy heifers on a farm with Neospora caninum infection. In New Zealand Journal of Zoology Vol. 32 (pp. 273). Wellington, NZ: Royal Society of New Zealand
[Conference Abstract]Authored by: Pomroy, W., Weston, J., Williamson, N.
Weston, JF., Williamson, NB., Pomroy, BE., & Olson, WO. (2005, October). Intravenous and oral challenge of pregnant heifers with Neospora caninum. . Christchurch, NZ.
[Conference Oral Presentation]Authored by: Pomroy, W., Weston, J., Williamson, N.
Okeoma, CM., Williamson, NB., Pomroy, BE., Stowell, KM., & Gillespie, L. (2005). Further studies on Neospora caninum including its isolation in New Zealand and the first isolation of circulating N. caninum DNA in cattle. In New Zealand Journal of Zoology Vol. 32 (pp. 277 - 277). Wellington, NZ: The Royal Society of New Zealand
[Conference Abstract]Authored by: Pomroy, W., Stowell, K., Williamson, N.
Williamson, NB., Okeoma, CM., Herder, F., & Weston, JF. (2005). Bovine abortion: Experimental and field interactions between BVD and Neospora caninum. Proceedings of a BVDV Symposium. Vol. 241 (pp. 35 - 40). Massey University, Palmerston North, NZ
[Conference Paper in Published Proceedings]Authored by: Weston, J., Williamson, N.
Williamson, NB., Butler, K., Bailey, D., & Alawneh, J. (2005). Automated heat detection for dairy cows. In IM. Brookes (Ed.) Proceedings of the 3rd Dairy3 Conference. Vol. Volume 3 (pp. 101 - 107). New Zealand: 3rd Dairy3 Conference
[Conference Paper in Published Proceedings]Authored by: Bailey, D., Williamson, N.
Weston, JF., Williamson, NB., & Pomroy, BE. (2005). Prospective cohort study of pregnancy outcome in dairy heifers on a farm with Neospora caninum infection. In New Zealand Journal of Zoology Vol. 32 (pp. 273 - 273). Wellington, NZ: The Royal Society of New Zealand
[Conference Abstract]Authored by: Pomroy, W., Weston, J., Williamson, N.
Williamson, NB. (2005). Heat detection. In TJP. Ed (Ed.) Society of Dairy Cattle Veterinarians: International Veterinary Conference. (pp. 141 - 151). Palmerston North, NZ
[Conference Paper in Published Proceedings]Authored by: Williamson, N.
Williamson, NB., Pomroy, BE., & Tawfik, M. (2005). Titres to N. caninum in dogs fed meat from different sources and infection of puppies with N. caninum fed brain from an infected cow. (pp. Unpaged). , The 20th International Conference of the World Association for the Advancement of Veterinary Parasitology: From Science to Solutions Palmerston North, NZ: World Association or the Advancement of Veterinary Parasitology
[Conference Abstract]Authored by: Pomroy, W., Williamson, N.
Williamson, NB. (2004). Neospora caninum research. In New Zealand Journal of Zoology: Abstracts Vol. 31 (pp. 82). Wellington, NZ: Royal Society of New Zealand
[Conference Abstract]Authored by: Williamson, N.
Weston, JF., Williamson, NB., Heuer, C., Pomroy, BE., & Okeoma, CM. (2004). Investigation of early loss of pregnancy and the role of Neospora caninum among heifers on one New Zealand dairy farm. (pp. 32 - 32). , 23rd World Buiatrics Congress Quebec, QC: World Association for Buiatrics
[Conference Abstract]Authored by: Heuer, C., Pomroy, W., Weston, J., Williamson, N.
Weston, JF., Williamson, NB., & Pomroy, BE. (2004, November). Prospective cohort study of pregnancy outcome in dairy heifers on a farm with Neospora caninum infection. Presented at 32nd New Zealand Society for Parasitology Annual Meeting. Massey University, Palmerston North, NZ.
[Conference Oral Presentation]Authored by: Pomroy, W., Weston, J., Williamson, N.
Okeoma, CM., Williamson, NB., Pomroy, BE., Stowell, KM., & Gillespie, L. (2004, November). Further studies on Neospora caninum including its isolation in New Zealand and the first isolation of circulating N. caninum DNA in cattle. Presented at 32nd New Zealand Society for Parasitology Annual Meeting. Massey University, Palmerston North, NZ.
[Conference Oral Presentation]Authored by: Pomroy, W., Stowell, K., Williamson, N.
Williamson, NB., Okeoma, CM., Pomroy, BE., Stowell, KM., & Gillespie, L. (2004). A study to investigate the influence of bovine virus diarrhoea on pregnant heifers infected with Neospora caninum and the first identification of circulating N. caninum DNA in cattle. (pp. 41 - 41). , 23rd World Buiatrics Congress Quebec, QC: World Association for Buiatrics
[Conference Abstract]Authored by: Pomroy, W., Stowell, K., Williamson, N.
Weston, JF., Heuer, C., Williamson, NB., Nicholson, C., & Bielsa, JM. (2003, November). Aetiological diagnosis of Neospora caninum-induced abortion in dairy cattle. Presented at 10th International Symposium for Veterinary Epidemiology and Economics. Vina del Mar, Chile.
[Conference Oral Presentation]Authored by: Heuer, C., Weston, J., Williamson, N.
Williamson, NB., Pomroy, BE., Walton, JK., & Reichel, MP. (2001, August). Vertical transmission of neospora in a New Zealand dairy herd. Presented at 18th International Conference of the World Association for the Advancement of Veterinary Parasitology. Stresa, Italy.
[Conference Oral Presentation]Authored by: Pomroy, W., Williamson, N.
Williamson, NB., Pomroy, WE., Walton, JK., & Reichel, MP. (2001). Vertical transmission of Neospora in a New Zealand dairy herd. (pp. 15 - 15). , Proceedings of the 18th international Conference of the World Association for the Advancement of Veterinary Parasitology Stresa, Italy: World Association for the Advancement of Veterinary Parasitology
[Conference Abstract]Authored by: Pomroy, W., Williamson, N.
Williamson, NB., Antony, A., Pfeiffer, DU., Pomroy, WM., Reichel, MP., & Walton, JK. (2000, December). Recent research into Neospora caninum in New Zealand. Presented at 21st World Buiatrics Congress & 28th Uruguayan Buiatrics Journey. Punta del Este, Uruguay.
[Conference Oral Presentation]Authored by: Williamson, N.
Williamson, NB., Hayes, DP., & Pfeiffer, DU.(1996, July). The influence of treatment with monensin capsules on milk production and reproductive performance of pasture fed dairy cows. WORLD ASSOCIATION FOR BUIATRICS - XIX CONGRESS, VOLS 1-3. (pp. 377 - 380).
[Conference]Authored by: Williamson, N.
Williamson, NB.(1992, June). The role of monensin in dairy herds. PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE FOR THE SOCIETY OF DAIRY CATTLE VETERINARIANS OF THE NEW ZEALAND VETERINARY ASSOCIATION. (pp. 285 - 293).
[Conference]Authored by: Williamson, N.
Williamson, NB.(1992, June). A heifer health and management program. PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE FOR THE SOCIETY OF DAIRY CATTLE VETERINARIANS OF THE NEW ZEALAND VETERINARY ASSOCIATION. (pp. 21 - 34).
[Conference]Authored by: Williamson, N.
Williamson, NB., & FernandezBaca, E.(1992, June). The role of dietary protein and energy in dairy herd fertility. PROCEEDINGS OF THE FIRST INTERNATIONAL CONFERENCE FOR THE SOCIETY OF DAIRY CATTLE VETERINARIANS OF THE NEW ZEALAND VETERINARY ASSOCIATION. (pp. 39 - 48).
[Conference]Authored by: Williamson, N.

Other

Williamson, N. (2011). Massey viewpoint on vet course entry. (pp. 24 - 24).
[Other]Authored by: Williamson, N.
Williamson, NB. (2009). Internal fortitude needed to make the cut. (pp. 14).
[Other]Authored by: Williamson, N.
Williamson, NB. (2008). Vet tech graduates will boost workforce. (pp. 2 - 2).
[Other]Authored by: Williamson, N.
Williamson, NB. (2008). Pressure on vets will ease. (pp. 40 - 40).
[Other]Authored by: Williamson, N.
Williamson, NB. (2008). Vet-tech workers will ease shortage. (pp. 46 - 46).
[Other]Authored by: Williamson, N.
Williamson, NB. (2007). Key biosecurity and welfare role for veterinary profession. (pp. 6 - 6).
[Other]Authored by: Williamson, N.
Williamson, NB. (2006). Trials back heat patch system. (pp. 110).
[Other]Authored by: Williamson, N.
Williamson, NB. (2005). Device for avoiding hated job. (pp. 74 - 74).
[Other]Authored by: Williamson, N.
Williamson, NB. (2005). Automation idea for dairying task farmers dislike most. (pp. 58 - 58).
[Other]Authored by: Williamson, N.
Williamson, NB. (2005, September). Treating the non-cycling cow. : Pfizer Seminar for Veterinarians.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2005, September). Oestrus synchronisation and induction. : Pfizer Seminar for Veterinarians.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2005, September). Treating the non-cycling cow. : Pfizer Semiar for Veterinarians.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2005, September). Oestrus synchronisation and induction. : Pfizer Seminar for Veterinarians.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2005, September). Automated heat detection in cattle. : Faculty of Veterinary Medicine, Central University of Buenos Aires Province.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2005, September). Research on the epidemiology of Neospora caninum at Massey University. : Faculty of Veterinary Medicine, Central University of Buenos Aires Province.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2005, September). CIDRs, PGF and synchronisation and induction of oestrus (non-cycling). : Pfizer.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2005, September). CIDRs, PGF and synchronisation and induction of oestrus (non-cycling). : Pfizer.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2005, May). Integrating self-care into the BVSc curriculum at Massey University. : AVA Conference: Trends in Veterinary Education.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB., Pomroy, BE., Antony, A., Pfeiffer, DU., Reichel, MR., Walton, J., . . . Howe, LJ. (2005, September). Neospora caninum: Research at Massey University. : Faculty of Vet Sciences in Tandil.
[Oral Presentation]Authored by: Howe, L., Pomroy, W., Weston, J., Williamson, N.
Williamson, NB., & Parkinson, TJ. (2005, February). Workshop on ruminant reproduction: Fertility and infertility. : Faculty of Veterinary Medicine, Khon Kaen University.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2002, May). Expectations for continuing professional development (CPD) in New Zealand. : Australian Veterinary Association.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2000, March). Anatomy, physiology and examination of the cow's reproductive tract. : Faculty of Veterinary Medicine, Universiti Putra Malaysia.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2000, March). Examination of the cow's reproductive tract specimens. : Faculty of Veterinary Medicine, Universiti Putra Malaysia.
[Oral Presentation]Authored by: Williamson, N.
Williamson, NB. (2000, March). Enhancing production: Growth promotants/rumen modifiers. : Faculty of Veterinary Medicine, Universiti Putra Malaysia.
[Oral Presentation]Authored by: Williamson, N.

Supervision and Teaching

Summary of Doctoral Supervision

Position Current Completed
Supervisor 1 5
Co-supervisor 0 3

Current Doctoral Supervision

Supervisor of:

  • Shirli Notcovich - Doctor of Philosophy
    Innovative treatments for animal health

Completed Doctoral Supervision

Supervisor of:

  • 2012 - Kiro Petrovski - Doctor of Philosophy
    In vitro and in vivo studies on treatment and prevention of bovine mastitis
  • 2006 - Chioma Okeoma - Doctor of Philosophy
    Studies on Neospora Caninum and Neosporosis in New Zealand
  • 2002 - Vicki McLean - Doctor of Philosophy
    #Streptococcus# #uberis# mastitis in New Zealand dairy herds.
  • 1996 - Jeffrey Wichtel - Doctor of Philosophy
    The Role of Selenium in Grazing Ruminants
  • 1995 - Scott McDougall - Doctor of Philosophy
    Postpartum Anoestrum in the Pasture Grazed New Zealand Dairy Cow

Co-supervisor of:

  • 2015 - Sharifah Syed Hussain - Doctor of Philosophy
    Some aspects of the epidemiology of neosporosis in sheep in New Zealand
  • 2012 - Ibrahim Al-Alawneh - Doctor of Philosophy
    Monitoring liveweight to optimise health and productivity in pasture fed dairy herds
  • 1997 - William Tranter - Doctor of Philosophy
    The Epidemiology and Control of Lameness in Pasture-Fed Dairy Cattle

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