Dr Stefan Smith

Dr Stefan Smith staff profile picture

Senior Veterinarian in Pastural Livestock Health

Institute of Vet, Animal & Biomedical Sciences

Telephone: +64 (06) 356 9099  ext. 85181
Email: 

Professional

Professional Biography

Currently teaching 4th and 5th year undergraduate veterinary students at IVABS sheep and beef medicine, surgery and pastural systems. 

Qualified 1991 BVSc Massey, presently undertaking a PhD in Johne's disease, interests in soil sciences, trace elements, human Crohn's disease.

Worked at Totally Vets for 6 years 1991 - 1996, CEO mixed veterianry practice Burton on Trent, Staffordshire England 1997 - 2008, Senior lecturer Massey UIniversity 2006 - present.

Current research - developed new diagnostic test for ovine Johne's disease, facial eczema prophylaxis with bio-fortified feeds, developing a therapeutic efficacy model for testing anti Mycobacterium avium subsp,. paratuberculosis therapeutics for both animal and humans.

Research Expertise

Thematics

21st Century Citizenship, Health and Well-being, Future Food Systems

Area of Expertise

Field of Research Codes
Agricultural And Veterinary Sciences (070000): Agriculture, Land and Farm Management (070100): Animal Production (070200): Farm Management, Rural Management and Agribusiness (070106): Farming Systems Research (070107): Veterinary Medicine (070706): Veterinary Microbiology (excl. Virology) (070707): Veterinary Parasitology (070708): Veterinary Pathology (070709): Veterinary Sciences (070700): Veterinary Surgery (070711)

Keywords

large Animal veterinary practice - medicine and surgery

Small animal veterinay medicine and surgery

Pastural production systems

Trace elements

Mycobacterium avium subsp. paratuberculosis (Johne's disease)

Research Outputs

Journal

Smith, SL., Wilson, PR., Collett, MG., Heuer, C., West, DM., Stevenson, M., . . . Chambers, JP. (2014). Liver Biopsy Histopathology for Diagnosis of Johne's Disease in Sheep. Veterinary Pathology. 51(5), 915-918
[Journal article]Authored by: Chambers, J., Heuer, C., Smith, S., Wilson, P.
Read Online: DOI icon Read Abstract: abstract icon

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: Pomroy, W., Smith, S.

Ridler, AL., Smith, SL., & West, DM. (2014). Seroconversion and semen shedding in rams experimentally infected with Brucella ovis. New Zealand Veterinary Journal. 62(1), 47-50
[Journal article]Authored by: Ridler, A., Smith, S.

Ridler, AL., Smith, SL., & West, DM. (2014). Seroconversion and semen shedding in rams experimentally infected with Brucella ovis. NEW ZEALAND VETERINARY JOURNAL. 62(1), 47-50
[Journal article]Authored by: Ridler, A., Smith, S.

Grace, ND., West, DM., Smith, SL., & Knowles, SO. (2013). The impact of highly concentrated Mo and Cu dietary supplements, fed as a bolus, on the efficacy of chelated versus inorganic Cu in cattle on a low-Cu diet. New Zealand Veterinary Journal. 61(6), 345-348
[Journal article]Authored by: Smith, S.

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., Smith, S.

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., Smith, S.

Grace, ND., West, DM., Smith, SL., & Knowles, SO. (2013). The impact of highly concentrated Mo and Cu dietary supplements, fed as a bolus, on the efficacy of chelated versus inorganic Cu in cattle on a low-Cu diet. NEW ZEALAND VETERINARY JOURNAL. 61(6), 345-348
[Journal article]Authored by: Smith, S.

Smith, SL., West, DM., Wilson, PR., de Lisle, GW., Collett, MG., Heuer, C., . . . Chambers, JP. (2013). The prevalence of disseminated Mycobacterium avium subsp paratuberculosis infection in tissues of healthy ewes from a New Zealand farm with Johne's disease present. NEW ZEALAND VETERINARY JOURNAL. 61(1), 41-44
[Journal article]Authored by: Chambers, J., Collett, M., Heuer, C., Smith, S., Wilson, P.

Ridler, AL., Smith, SL., & West, DM. (2012). Ram and buck management. Animal Reproduction Science. 130(3-4), 180-183
[Journal article]Authored by: Smith, S.

Grace, ND., Knowles, SO., West, DM., & Smith, SL. (2012). The role of liver Cu kinetics in the depletion of reserves of Cu in dairy cows fed a Cu-deficient diet. NEW ZEALAND VETERINARY JOURNAL. 60(2), 142-145
[Journal article]Authored by: Smith, S.

Ridler, AL., Smith, SL., & West, DM. (2012). Ram and buck management. Animal Reproduction Science. 130(3-4), 180-183
[Journal article]Authored by: Smith, S.

Yafariahangari, Y., Smith, S., Sharma, RK., Zerehdaran, S., & Blair, H. (2011). The effect of pre-natal maternal environment on live weight, reproductive and semen characteristics in ram lambs. Small Ruminant Research. 103(2-3), 200-204 Retrieved from http://www.sciencedirect.com/science/article/pii/S0921448811003051
[Journal article]Authored by: Blair, H., Smith, S.
Read Online: DOI icon Read Abstract: abstract icon

Smith, SL., West, DM., Wilson, PR., de Lisle, GW., Collett, MG., Heuer, C., . . . Chambers, JP. (2011). Detection of Mycobacterium avium subsp paratuberculosis in skeletal muscle and blood of ewes from a sheep farm in New Zealand. NEW ZEALAND VETERINARY JOURNAL. 59(5), 240-243
[Journal article]Authored by: Chambers, J., Collett, M., Heuer, C., Smith, S., Wilson, P.

Balemi, SC., Grace, ND., West, DM., Smith, SL., & Knowles, SO. (2010). Accumulation and depletion of liver copper stores in dairy cows challenged with a Cu-deficient diet and oral and injectable forms of Cu supplementation. NEW ZEALAND VETERINARY JOURNAL. 58(3), 137-141
[Journal article]Authored by: Smith, S.

Smith, SL., Grace, ND., West, DM., & Balemi, SC. (2010). The impact of high zinc intake on the copper status of dairy cows in New Zealand. NEW ZEALAND VETERINARY JOURNAL. 58(3), 142-145
[Journal article]Authored by: Smith, S.

West, DM., Pomroy, WE., Kenyon, PR., Morris, ST., Smith, SL., & Burnham, DL. (2009). Estimating the cost of subclinical parasitism in grazing ewes. SMALL RUMINANT RESEARCH. 86(1-3), 84-86
[Journal article]Authored by: Burnham, D., Kenyon, P., Morris, S., Pomroy, W., Smith, S.

Kenyon, PR., Smith, SL., Morel, PCH., Morris, ST., & West, DM. (2009). The effect of the maturity and prior breeding activity of rams and body condition score of ewe hoggets on the reproductive performance of ewe hoggets. NEW ZEALAND VETERINARY JOURNAL. 57(5), 290-294
[Journal article]Authored by: Kenyon, P., Morel, P., Morris, S., Smith, S.

Laven, RA., & Smith, SL. (2008). Copper deficiency in sheep: An assessment of the relationship between concentrations of copper in serum and plasma. NEW ZEALAND VETERINARY JOURNAL. 56(6), 334-338
[Journal article]Authored by: Laven, R., Smith, S.

West, DM., Pomroy, WE., Smith, SL., & Leathwick, DM. (2007). Multiple anthelmintic resistant nematodes in goats - do they pose a threat to conventional sheep parasite control?. NEW ZEALAND JOURNAL OF ZOOLOGY. 34(2), 147-147
[Journal article]Authored by: Pomroy, W., Smith, S.

Book

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: Parton, K., Smith, S., Weston, J.

Conference

Smith, SL. (2014). Are round unidentified acid fast organisms (RUAFO) a long lost cousin of the AFO in Mycobacterium paratuberculosis?. (pp. 1 - 1). , IVABS Postgraduate Colloquium
[Conference Abstract]Authored by: Smith, S.
Read Abstract: abstract icon

Smith, S. (2014, June). Are round unidentified acid fast organisms (RUAFO) a long lost cousin of the AFO in Mycobacterium paratuberculosis?. Presented at IVABS Postgraduate Colloquium. Palmerston North, New Zealand.
[Conference Oral Presentation]Authored by: Smith, S.
Read Abstract: abstract icon

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., Smith, S.
Read Abstract: abstract icon

Smith, S., West, D., Wilson, P., de Lisle, G., Collett, M., Heuer, C., . . . Chambers, P. (2013, February). The prevalence of mycobacterium avium subsp Paratuberculosis (map) infection within a flock and the detection of map in skeletal muscle and blood of ewes from a New Zealand sheep farm. Presented at 8th International Sheep Veterinary Congress: Connecting Sheep and Science. Rotorua, New Zealand.
[Conference Oral Presentation]Authored by: Chambers, J., Collett, M., Heuer, C., Smith, S., Wilson, P.
Read Abstract: abstract icon

Smith, S., West, D., Wilson, P., de Lisle, G., Collett, M., Heuer, C., . . . Chambers, P. (2013). The prevalence of mycobacterium avium subsp Paratuberculosis (map) infection within a flock and the detection of map in skeletal muscle and blood of ewes from a New Zealand sheep farm. In 8th International Sheep Veterinary Congress: Handbook(pp. 139 - 139). , 8th International Sheep Veterinary Congress: Connecting Sheep and Science New Zealand: International Sheep Veterinary Congress
[Conference Abstract]Authored by: Chambers, J., Collett, M., Heuer, C., Smith, S., Wilson, P.
Read Abstract: abstract icon

Smith, S., Collett, M., West, D., Wilson, P., de Lisle, G., Heuer, C., . . . Chambers, P. (2013). Use of liver histopathology and liver biospy histopathology as a practical diagnostic test to identify live sheep affected by mycobacterium avium subspecies paratuberculosis (map). In 8th International Sheep Veterinary Congress: Handbook(pp. 139 - 139). , 8th International Sheep Veterinary Congress: Connecting Sheep and Science New Zealand: International Sheep Veterinary Congress
[Conference Abstract]Authored by: Chambers, J., Collett, M., Heuer, C., Smith, S., Wilson, P.
Read Abstract: abstract icon

Smith, S., Collett, M., West, D., Wilson, P., de Lisle, G., Heuer, C., . . . Chambers, P. (2013, February). Use of liver histopathology and liver biospy histopathology as a practical diagnostic test to identify live sheep affected by mycobacterium avium subspecies paratuberculosis (map). Presented at 8th International Sheep Veterinary Congress: Connecting Sheep and Science. Rotorua, New Zealand.
[Conference Oral Presentation]Authored by: Chambers, J., Collett, M., Heuer, C., Smith, S., Wilson, P.
Read Abstract: abstract icon

Smith, S. (2012, December). Chianti, fava beans and not so silent lamb livers- a new diagnostic test for ovine clinical Johne's disease. Presented at Institute of Veterinary, Animal and Biomedical Sciences [IVABS] Research Colloquium. Palmerston North, New Zealand.
[Conference Oral Presentation]Authored by: Smith, S.
Read Abstract: abstract icon

Smith, S. (2012). Chianti, fava beans and not so silent lamb livers- A new diagnostic test for ovine clinical Johne's disease. In Institute of Veterinary, Animal and Biomedical Sciences [IVABS] Research Colloquium: Programme and Abstracts(pp. 5 - 5). , Institute of Veterinary, Animal and Biomedical Sciences [IVABS] Research Colloquium New Zealand: Institute of Veterinary, Animal and Biomedical Sciences, Massey University
[Conference Abstract]Authored by: Smith, S.
Read Abstract: abstract icon

Smith, S. (2012, June). New developments in Ovine Johne's disease.....Sir, how would you like that cooked?. Presented at Institute of Veterinary, Animal and Biomedical Sciences [IVABS] Postgraduate Colloquium. Palmerston North, New Zealand.
[Conference Oral Presentation]Authored by: Smith, S.
Read Abstract: abstract icon

Smith, S. (2012). New developments in Ovine Johne's disease.....Sir, how would you like that cooked?. In IVABS Postgraudate Colloquium 2012 Programme(pp. 16 - 16). , Institute of Veterinary, Animal and Biomedical Sciences Postgraduate Colloquium New Zealand: Institute of Veterinary, Animal and Biomedical Sciences, Massey University
[Conference Abstract]Authored by: Smith, S.
Read Abstract: abstract icon

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., Smith, S.
Read Abstract: abstract icon

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., Smith, S.
Read Abstract: abstract icon

West, DM., Pomroy, WE., Smith, SL., Kenyon, PR., & Morris, ST. (2011). Effect of parasitism on bodyweight and reproductive performance in adult sheep. In Proceedings of the 23rd International Conference of the World Association for the Advancement of Veterinary Parasitology(pp. 17 - 17). , 23rd International Conference of the World Association for the Advancement of Veterinary Parasitology Argentina: Asociacion Argentina de Parasitologia Veterinaria
[Conference Abstract]Authored by: Kenyon, P., Morris, S., Pomroy, W., Smith, S.

Smith, S., West, D., & Pomroy, W. (2010, October). Possible transfer of resistant Trichostrongylus spp. nematodes from goats to sheep. Presented at New Zealand Society for Parasitology Annual Meeting No. 38. Palmerston North, New Zealand.
[Conference Oral Presentation]Authored by: Pomroy, W., Smith, S.
Read Abstract: abstract icon

Smith, S., West, D., & Pomroy, W. (2010). Possible transfer of resistant Trichostrongylus spp. nematodes from goats to sheep. In New Zealand Society for Parasitology Annual Meeting No. 38(pp. 17 - 17). , New Zealand Society for Parasitology Annual Meeting No. 38: New Zealand Society for Parasitology
[Conference Abstract]Authored by: Pomroy, W., Smith, S.
Read Abstract: abstract icon

West, D., Pomroy, W., Smith, S., Kenyon, P., & Morris, S. (2010). Targeted, strategic use of Bionic drench capsules to improve reproductive performance of ewes. In New Zealand Society of Parasitology Annual Meeting No. 38(pp. 14 - 15). , New Zealand Society of Parasitology Annual Meeting No. 38: New Zealand Society of Parasitology
[Conference Abstract]Authored by: Kenyon, P., Morris, S., Pomroy, W., Smith, S.
Read Abstract: abstract icon

West, D., Pomroy, W., Smith, S., Kenyon, P., & Morris, S. (2010, October). Targeted, strategic use of Bionic drench capsules to improve reproductive performance of ewes. Presented at New Zealand Society for Parasitology Annual Meeting No. 38. Palmerston North, New Zealand.
[Conference Oral Presentation]Authored by: Kenyon, P., Morris, S., Pomroy, W., Smith, S.
Read Abstract: abstract icon

Ahangari, J., Smith, S., & Blair, H. (2009). The maternal effect and different uterine body environments on reproductive traits of Cheviot and Suffolk male lambs. Poster session presented at the meeting of 60th Annual Meeting of the European Association for Animal Production [EAAP]. Barcelona, Spain
[Conference Poster]Authored by: Blair, H., Smith, S.
Read Abstract: abstract icon

Ahangari, J., Smith, S., & Blair, H. (2009). The maternal effect and different uterine body environments on reproductive traits of Cheviot and Suffolk male lambs. In 60th Annual Meeting of the European Association for Animal Production(pp. 395 - 395). : Wageningen Academic Publishers
[Conference Abstract]Authored by: Smith, S.
Read Abstract: abstract icon

Pomroy, WE., Scott, I., West, DM., Smith, SL., & Leech, W. (2009). Efficacy of an abamectin+levamisole tablet against an ML-resistant Cooperia in cattle using a faecal egg count reduction test and occurrence of a possibly ML-resistant isolate of Ostertagia in cattle. In World Association for the Advancement of Veterinary Parasitology 2009(pp. 142 - 142). , World Association for the Advancement of Veterinary Parasitology 2009: WAAVP
[Conference Abstract]Authored by: Pomroy, W., Scott, I., Smith, S.
Read Abstract: abstract icon

Pomroy, WE., Scott, I., West, DM., Smith, SL., & Leech, W. (2009). Efficacy of an abamectin+levamisole tablet against an ML-resistant Cooperia in cattle using a faecal egg count reduction test and occurrence of a possibly ML-resistant isolate of Ostertagia in cattle. In New Zealand Society for Parasitology Annual Meeting 2009 No.37(pp. 32 - 33). , New Zealand Society for Parasitology Annual Meeting 2009 No.37: New Zealand Society for Parasitology
[Conference Abstract]Authored by: Pomroy, W., Scott, I., Smith, S.
Read Abstract: abstract icon

Smith, S.(2008). Proceedings from the 38th Seminar of the Sheep and Beef Cattle Veterinarians NZVA: Sheep & Beef Cattle Veterinarians Conference. In 38th Sheep and Beef Cattle Conference 2008. Christchurch, New Zealand: VetLearn
[Conference Other]Authored by: Smith, S.Edited by: Smith, S.

West, DM., Pomroy, WE., Kenyon, PR., Morris, ST., Smith, SL., & Burnham, DL. (2008). The effect of subclinical parasitism on a ewe flock. Proceedings of the Society of Sheep and Beef Cattle Veterinarians of the NZVA, 2008. (pp. 97 - 102). : Society of Sheep and Beef Cattle Veterinarians of the New Zealand Veterinary Association Annual Seminar
[Conference Paper in Published Proceedings]Authored by: Burnham, D., Kenyon, P., Morris, S., Pomroy, W., Smith, S.
Read Abstract: abstract icon

Smith, S.(2007). Proceedings from the 37th Seminar of the Society of Sheep and Beef Cattle Veterinarians NZVA: NZVA Large Animal Convention. In Proceedings from the 37th Seminar of the Society of Sheep and Beef Cattle Veterinarians NZVA. Palmerston North, New Zealand: Palmerston North, NZ: VetLearn
[Conference Other]Edited by: Smith, S.

Smith, S.(2006). Proceedings from the 36th Seminar of the Society of Sheep and Beef Cattle Veterinarians NZVA. In Proceedings from the 36th Seminar of the Society of Sheep and Beef Cattle Veterinarians NZVA. Christchurch, New Zealand: VetLearn Foundation
[Conference Other]Edited by: Smith, S.

West, DM., Pomroy, WE., Smith, SL., & Leathwick, DM. (2006). Multiple anthelmintic resistant nematodes in goats: Do they pose a threat to conventional sheep parasite control?. In New Zealand Society for Parasitology Annual Meeting No. 33(pp. 13 - 13). , New Zealand Society for Parasitology Annual Meeting No. 33: New Zealand Society for Parasitology
[Conference Abstract]Authored by: Pomroy, W., Smith, S.

Supervision and Teaching

Teaching

4th and 5th year veterinary undergraduate teaching in medicine and surgery.

Trace element conferencing through soil sciences

Intergrating scioence teaching intio Year 7 & 8 primary school teaching

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