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Todd Duffield

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TOP 3
C E Fitzpatrick; David F Kelton; N Chapinal; TJ DeVries; Todd F Duffield; C S Petersson-Wolfe; Ken E Leslie
The effect of meloxicam on pain sensitivity, rumination time, and clinical signs in dairy cows with endotoxin-induced clinical mastitis.
Nathalie C Newby; David L Pearl; Todd F Duffield; Stephen J LeBlanc; Ken E Leslie; M A G von Keyserlingk
Short communication: use of a mechanical brush by Holstein dairy cattle around parturition.
A M Greter; Brian W McBride; R S Westerveld; TM Widowski; Todd F Duffield; TJ DeVries
Short communication: effects of frequency of feed delivery and bunk space on the feeding behavior of limit-fed dairy heifers.

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2013: C E Fitzpatrick; David F Kelton; N Chapinal; TJ DeVries; Todd F Duffield; C S Petersson-Wolfe; Ken E Leslie
The effect of meloxicam on pain sensitivity, rumination time, and clinical signs in dairy cows with endotoxin-induced clinical mastitis.
Journal of dairy science 2013;96(5):2847-56.
2013: Nathalie C Newby; David L Pearl; Todd F Duffield; Stephen J LeBlanc; Ken E Leslie; M A G von Keyserlingk
Short communication: use of a mechanical brush by Holstein dairy cattle around parturition.
Journal of dairy science 2013;96(4):2339-44.
2013: A M Greter; Brian W McBride; R S Westerveld; TM Widowski; Todd F Duffield; TJ DeVries
Short communication: effects of frequency of feed delivery and bunk space on the feeding behavior of limit-fed dairy heifers.
Journal of dairy science 2013;96(3):1803-10.
2013: Nathalie C Newby; David L Pearl; M A G von Keyserlingk; Stephen J LeBlanc; Ken E Leslie; Todd F Duffield
The effect of administering ketoprofen on the physiology and behavior of dairy cows following surgery to correct a left displaced abomasum.
Journal of dairy science 2013;96(3):1511-20.
2012: Todd F Duffield; J K Merrill; Randy Bagg
Meta-analysis of the effects of monensin in beef cattle on feed efficiency, body weight gain, and dry matter intake.
Journal of animal science 2012;90(12):4583-92.
2012: N Chapinal; M Capel; M E Carson; S Godden; Stephen J LeBlanc; Ken E Leslie; M W Overton; J E P Santos; Todd F Duffield
Herd-level association of serum metabolites in the transition period with disease, milk production, and early lactation reproductive performance.
Journal of dairy science 2012;95(10):5676-82.
2012: T Roberts; N Chapinal; J Dubuc; David F Kelton; Stephen J LeBlanc; Todd F Duffield
Metabolic parameters in transition cows as indicators for early-lactation culling risk.
Journal of dairy science 2012;95(6):3057-63.
2012: J Dubuc; Todd F Duffield; Ken E Leslie; John S Walton; Stephen J LeBlanc
Risk factors and effects of postpartum anovulation in dairy cows.
Journal of dairy science 2012;95(4):1845-54.
2012: Todd F Duffield; AR Rabiee; Ian J Lean
Overview of meta-analysis of monensin in dairy cattle.
The Veterinary clinics of North America. Food animal practice 2012;28(1):107-19, ix.
2012: N Chapinal; M Capel; M E Carson; S Godden; Stephen J LeBlanc; Ken E Leslie; M W Overton; J E P Santos; Todd F Duffield
The association of serum metabolites in the transition period with milk production and early-lactation reproductive performance.
Journal of dairy science 2012;95(3):1301-9.
2011: N Chapinal; Todd F Duffield; S Godden; M Capel; M Carson; M Overton; J E P Santos; Stephen J LeBlanc
The association of serum metabolites with clinical disease during the transition period.
Journal of dairy science 2011;94(10):4897-903.
2011: Ousama AlZahal; Todd F Duffield; I Kyriazakis; M A Steele; M Van Schaik; H Alzahal; Brian W McBride
The use of a radiotelemetric ruminal bolus to detect body temperature changes in lactating dairy cattle.
Journal of dairy science 2011;94(7):3568-74.
2011: Lise A Trotz-Williams; Brenna D Jarvie; Andrew S Peregrine; Todd F Duffield; Ken E Leslie
Efficacy of halofuginone lactate in the prevention of cryptosporidiosis in dairy calves.
The Veterinary record 2011;168(19):509.
2011: Hesam A Seifi; Stephen J LeBlanc; Ken E Leslie; Todd F Duffield
Metabolic predictors of post-partum disease and culling risk in dairy cattle.
Veterinary journal (London, England : 1997) 2011;188(2):216-20.
2011: J Dubuc; Todd F Duffield; Ken E Leslie; John S Walton; Stephen J LeBlanc
Effects of postpartum uterine diseases on milk production and culling in dairy cows.
Journal of dairy science 2011;94(3):1339-46.
2011: J Dubuc; Todd F Duffield; Ken E Leslie; John S Walton; Stephen J LeBlanc
Randomized clinical trial of antibiotic and prostaglandin treatments for uterine health and reproductive performance in dairy cows.
Journal of dairy science 2011;94(3):1325-38.
2010: J Dubuc; Todd F Duffield; Ken E Leslie; John S Walton; Stephen J LeBlanc
Risk factors for postpartum uterine diseases in dairy cows.
Journal of dairy science 2010;93(12):5764-71.
2010: J Dubuc; Todd F Duffield; Ken E Leslie; John S Walton; Stephen J LeBlanc
Definitions and diagnosis of postpartum endometritis in dairy cows.
Journal of dairy science 2010;93(11):5225-33.
2010: A Heinrich; Todd F Duffield; Kerry D Lissemore; Suzanne T Millman
The effect of meloxicam on behavior and pain sensitivity of dairy calves following cautery dehorning with a local anesthetic.
Journal of dairy science 2010;93(6):2450-7.
2010: C G Todd; Suzanne T Millman; D R McKnight; Todd F Duffield; Ken E Leslie
Nonsteroidal anti-inflammatory drug therapy for neonatal calf diarrhea complex: Effects on calf performance.
Journal of animal science 2010;88(6):2019-28.
2010: Jennifer Hubbard; Stephen J LeBlanc; Todd F Duffield; Randy Bagg; Jocelyn Dubuc
The effect of storage temperature on the accuracy of a cow-side test for ketosis.
The Canadian veterinary journal. La revue vétérinaire canadienne 2010;51(5):525-6.
2010: Jocelyn Dubuc; Denis DuTremblay; Jean Baril; Randy Bagg; Marcel Brodeur; Todd F Duffield; Luc DesCôteaux
A field study on the effects of dietary monensin on milk production and milk composition in dairy cows.
The Canadian veterinary journal. La revue vétérinaire canadienne 2010;51(4):375-9.
2010: Todd F Duffield; Anneliese Heinrich; Suzanne T Millman; Andrew DeHaan; Shelley James; Kerry D Lissemore
Reduction in pain response by combined use of local lidocaine anesthesia and systemic ketoprofen in dairy calves dehorned by heat cauterization.
The Canadian veterinary journal. La revue vétérinaire canadienne 2010;51(3):283-8.
2009: Gerardo F Quiroz-Rocha; Stephen J LeBlanc; Todd F Duffield; Darren Wood; Ken E Leslie; Robert M Jacobs
Reference limits for biochemical and hematological analytes of dairy cows one week before and one week after parturition.
The Canadian veterinary journal. La revue vétérinaire canadienne 2009;50(4):383-8.
2009: Gerardo F Quiroz-Rocha; Stephen J LeBlanc; Todd F Duffield; Darren Wood; Ken E Leslie; Robert M Jacobs
Evaluation of prepartum serum cholesterol and fatty acids concentrations as predictors of postpartum retention of the placenta in dairy cows.
Journal of the American Veterinary Medical Association 2009;234(6):790-3.
2009: Alexander Rodriguez-Palacios; Henry R Staempfli; Todd F Duffield; J Scott Weese
Isolation of bovine intestinal Lactobacillus plantarum and Pediococcus acidilactici with inhibitory activity against Escherichia coli O157 and F5.
Journal of applied microbiology 2009;106(2):393-401.
2009: J Dubuc; Denis DuTremblay; M Brodeur; Todd F Duffield; R Bagg; J Baril; Luc DesCôteaux
A randomized herd-level field study of dietary interactions with monensin on milk fat percentage in dairy cows.
Journal of dairy science 2009;92(2):777-81.
2009: Todd F Duffield; Kerry D Lissemore; Brian W McBride; Ken E Leslie
Impact of hyperketonemia in early lactation dairy cows on health and production.
Journal of dairy science 2009;92(2):571-80.
2009: A Heinrich; Todd F Duffield; Kerry D Lissemore; E James Squires; Suzanne T Millman
The impact of meloxicam on postsurgical stress associated with cautery dehorning.
Journal of dairy science 2009;92(2):540-7.
2009: Anli Gao; Joseph Odumeru; Melinda Raymond; Steven H Hendrick; Todd F Duffield; Lucy Mutharia
Comparison of milk culture, direct and nested polymerase chain reaction (PCR) with fecal culture based on samples from dairy herds infected with Mycobacterium avium subsp. paratuberculosis.
Canadian journal of veterinary research = Revue canadienne de recherche vétérinaire 2009;73(1):58-64.
2009: Todd F Duffield; Ken E Leslie; Kerry D Lissemore; Suzanne T Millman
Research and teaching of dairy cattle well being: finding synergy between ethology and epidemiology.
Journal of applied animal welfare science : JAAWS 2009;12(2):132-42.
2008: Todd F Duffield; A R Rabiee; I J Lean
A meta-analysis of the impact of monensin in lactating dairy cattle. Part 3. Health and reproduction.
Journal of dairy science 2008;91(6):2328-41.
2008: Todd F Duffield; A R Rabiee; I J Lean
A meta-analysis of the impact of monensin in lactating dairy cattle. Part 2. Production effects.
Journal of dairy science 2008;91(4):1347-60.
2008: Todd F Duffield; A R Rabiee; I J Lean
A meta-analysis of the impact of monensin in lactating dairy cattle. Part 1. Metabolic effects.
Journal of dairy science 2008;91(4):1334-46.
2008: Ousama AlZahal; Nicholas E Odongo; Timothy Mutsvangwa; Manun Or-Rashid; Todd F Duffield; Randy Bagg; Paul Dick; Gordon H Vessie; Brian W McBride
Effects of monensin and dietary soybean oil on milk fat percentage and milk fatty acid profile in lactating dairy cows.
Journal of dairy science 2008;91(3):1166-74.
2008: Ken Bateman; Paula Menzies; David Sandals; Todd F Duffield; Stephen LeBlanc; K Leslie; Kerry D Lissemore; Rob Swackhammer
Objective structured clinical examinations (OSCEs) as a summative evaluation tool in a ruminant health management rotation for final-year DVM students.
Journal of veterinary medical education 2008;35(3):382-8.
2008: Lise A Trotz-Williams; S Wayne Martin; Ken E Leslie; Todd F Duffield; Daryl V Nydam; Andrew S Peregrine
Association between management practices and within-herd prevalence of Cryptosporidium parvum shedding on dairy farms in southern Ontario.
Preventive veterinary medicine 2008;83(1):11-23.
2007: Laine J Misch; Todd F Duffield; Suzanne T Millman; Kerry D Lissemore
An investigation into the practices of dairy producers and veterinarians in dehorning dairy calves in Ontario.
The Canadian veterinary journal. La revue vétérinaire canadienne 2007;48(12):1249-54.
2007: Lise A Trotz-Williams; S Wayne Martin; Ken E Leslie; Todd F Duffield; Daryl V Nydam; Andrew S Peregrine
Calf-level risk factors for neonatal diarrhea and shedding of Cryptosporidium parvum in Ontario dairy calves.
Preventive veterinary medicine 2007;82(1-2):12-28.
2007: Alexander Rodriguez-Palacios; Henry R Stämpfli; Margaret Stalker; Todd F Duffield; J Scott Weese
Natural and experimental infection of neonatal calves with Clostridium difficile.
Veterinary microbiology 2007;124(1-2):166-72.
2007: Hesam A Seifi; Stephen J LeBlanc; E Vernooy; Ken E Leslie; Todd F Duffield
Effect of isoflupredone acetate with or without insulin on energy metabolism, reproduction, milk production, and health in dairy cows in early lactation.
Journal of dairy science 2007;90(9):4181-91.
2007: Robert B Walsh; John S Walton; David F Kelton; Stephen J LeBlanc; Ken E Leslie; Todd F Duffield
The effect of subclinical ketosis in early lactation on reproductive performance of postpartum dairy cows.
Journal of dairy science 2007;90(6):2788-96.
2007: C S Petersson-Wolfe; Ken E Leslie; T Osborne; Brian W McBride; Randy Bagg; Gordon H Vessie; Paul Dick; Todd F Duffield
Effect of monensin delivery method on dry matter intake, body condition score, and metabolic parameters in transition dairy cows.
Journal of dairy science 2007;90(4):1870-9.
2007: Robert B Walsh; Stephen J LeBlanc; Todd F Duffield; David F Kelton; John S Walton; Ken E Leslie
The effect of a progesterone releasing intravaginal device (PRID) on pregnancy risk to fixed-time insemination following diagnosis of non-pregnancy in dairy cows.
Theriogenology 2007;67(5):948-56.
2007: Alexander Rodriguez-Palacios; Henry R Staempfli; Todd F Duffield; J Scott Weese
Clostridium difficile in retail ground meat, Canada.
Emerging infectious diseases 2007;13(3):485-7.
2007: GH Lim; Ken E Leslie; David F Kelton; Todd F Duffield; Leo L Timms; Randy T Dingwell
Adherence and efficacy of an external teat sealant to prevent new intramammary infections in the dry period.
Journal of dairy science 2007;90(3):1289-300.
2007: AM Fairfield; JC Plaizier; Todd F Duffield; Michael Lindinger; Randy Bagg; Paul Dick; Brian W McBride
Effects of prepartum administration of a monensin controlled release capsule on rumen pH, feed intake, and milk production of transition dairy cows.
Journal of dairy science 2007;90(2):937-45.
2007: Robert B Walsh; David F Kelton; Todd F Duffield; Ken E Leslie; John S Walton; Stephen J LeBlanc
Prevalence and risk factors for postpartum anovulatory condition in dairy cows.
Journal of dairy science 2007;90(1):315-24.
2007: Ousama AlZahal; B Rustomo; Nicholas E Odongo; Todd F Duffield; Brian W McBride
Technical note: A system for continuous recording of ruminal pH in cattle.
Journal of animal science 2007;85(1):213-7.
2006: L C Zahra; Todd F Duffield; Ken E Leslie; T R Overton; D Putnam; Stephen J LeBlanc
Effects of rumen-protected choline and monensin on milk production and metabolism of periparturient dairy cows.
Journal of dairy science 2006;89(12):4808-18.
2006: B Rustomo; Ousama AlZahal; Nicholas E Odongo; Todd F Duffield; Brian W McBride
Effects of rumen acid load from feed and forage particle size on ruminal pH and dry matter intake in the lactating dairy cow.
Journal of dairy science 2006;89(12):4758-68.
2006: Alexander Rodriguez-Palacios; Henry R Stämpfli; Todd F Duffield; Andrew S Peregrine; Lise A Trotz-Williams; Luis G Arroyo; Jon S Brazier; J Scott Weese
Clostridium difficile PCR ribotypes in calves, Canada.
Emerging infectious diseases 2006;12(11):1730-6.
2006: Steven H Hendrick; Todd F Duffield; Ken E Leslie; Kerry D Lissemore; Marie Archambault; Randy Bagg; Paul Dick; David F Kelton
Monensin might protect Ontario, Canada dairy cows from paratuberculosis milk-ELISA positivity.
Preventive veterinary medicine 2006;76(3-4):237-48.
2006: Steven H Hendrick; David F Kelton; Ken E Leslie; Kerry D Lissemore; Marie Archambault; Randy Bagg; Paul Dick; Todd F Duffield
Efficacy of monensin sodium for the reduction of fecal shedding of Mycobacterium avium subsp. paratuberculosis in infected dairy cattle.
Preventive veterinary medicine 2006;75(3-4):206-20.
2006: Chris J McLaren; Kerry D Lissemore; Todd F Duffield; Ken E Leslie; David F Kelton; Bill Grexton
The relationship between herd level disease incidence and a return over feed index in Ontario dairy herds.
The Canadian veterinary journal. La revue vétérinaire canadienne 2006;47(8):767-73.
2006: Andrew S Peregrine; S Wayne Martin; Douglas A Hopwood; Todd F Duffield; Beverly McEwen; Jamie C Hobson; Sharon K Hietala
Neospora caninum and Leptospira serovar serostatus in dairy cattle in Ontario.
The Canadian veterinary journal. La revue vétérinaire canadienne 2006;47(5):467-70.
2006: Stephen J LeBlanc; Kerry D Lissemore; David F Kelton; Todd F Duffield; Ken E Leslie
Major advances in disease prevention in dairy cattle.
Journal of dairy science 2006;89(4):1267-79.
2006: Nicholas E Odongo; Ousama AlZahal; Michael Lindinger; Todd F Duffield; E V Valdes; S P Terrell; Brian W McBride
Effects of mild heat stress and grain challenge on acid-base balance and rumen tissue histology in lambs.
Journal of animal science 2006;84(2):447-55.
2005: Steven H Hendrick; Todd F Duffield; Ken Leslie; Kerry D Lissemore; Marie Archambault; David F Kelton
The prevalence of milk and serum antibodies to Mycobacterium avium subspecies paratuberculosis in dairy herds in Ontario.
The Canadian veterinary journal. La revue vétérinaire canadienne 2005;46(12):1126-9.
2005: Lise A Trotz-Williams; S Wayne Martin; Donald Martin; Todd F Duffield; Ken E Leslie; Daryl V Nydam; Frances Jamieson; Andrew S Peregrine
Multiattribute evaluation of two simple tests for the detection of Cryptosporidium parvum in calf faeces.
Veterinary parasitology 2005;134(1-2):15-23.
2005: Steven H Hendrick; David F Kelton; Ken E Leslie; Kerry D Lissemore; Marie Archambault; Todd F Duffield
Effect of paratuberculosis on culling, milk production, and milk quality in dairy herds.
Journal of the American Veterinary Medical Association 2005;227(8):1302-8.
2005: JC Plaizier; AM Fairfield; P A Azevedo; A Nikkhah; Todd F Duffield; GH Crow; Randy Bagg; Paul Dick; Brian W McBride
Effects of monensin and stage of lactation on variation of blood metabolites within twenty-four hours in dairy cows.
Journal of dairy science 2005;88(10):3595-602.
2005: Rex G Crawford; Ken E Leslie; Randy Bagg; C Paul Dick; Todd F Duffield
The impact of controlled release capsules of monensin on postcalving haptoglobin concentrations in dairy cattle.
Canadian journal of veterinary research = Revue canadienne de recherche vétérinaire 2005;69(3):208-14.
2005: Randy Bagg; Gordon H Vessie; C Paul Dick; Todd F Duffield; Jeff B Wilson; Jeff Aramini
Milk residues and performance of lactating dairy cows administered high doses of monensin.
Canadian journal of veterinary research = Revue canadienne de recherche vétérinaire 2005;69(3):180-5.
2005: Ramanathan Kasimanickam; Todd F Duffield; Robert A Foster; Cathy J Gartley; Ken E Leslie; John S Walton; Walter H Johnson
A comparison of the cytobrush and uterine lavage techniques to evaluate endometrial cytology in clinically normal postpartum dairy cows.
The Canadian veterinary journal. La revue vétérinaire canadienne 2005;46(3):255-9.
2005: Jamie C Hobson; Todd F Duffield; David F Kelton; Kerry D Lissemore; Sharon K Hietala; Ken E Leslie; Beverly McEwen; Andrew S Peregrine
Risk factors associated with Neospora caninum abortion in Ontario Holstein dairy herds.
Veterinary parasitology 2005;127(3-4):177-88.
2005: Ramanathan Kasimanickam; Todd F Duffield; Robert A Foster; Cathy J Gartley; Ken E Leslie; John S Walton; Walter H Johnson
The effect of a single administration of cephapirin or cloprostenol on the reproductive performance of dairy cows with subclinical endometritis.
Theriogenology 2005;63(3):818-30.
2005: Chris J McLaren; Kerry D Lissemore; Todd F Duffield; Ken E Leslie; David F Kelton; B Grexton
The association of herd milk production and management with a return-over-feed index in Ontario dairy herds.
Journal of dairy science 2005;88(1):419-25.
2005: Stephen J LeBlanc; Ken E Leslie; Todd F Duffield
Metabolic predictors of displaced abomasum in dairy cattle.
Journal of dairy science 2005;88(1):159-70.
2004: Y Pan; Gerald B Jansen; Todd F Duffield; Sharon K Hietala; David F Kelton; Ching Y Lin; Andrew S Peregrine
Genetic susceptibility to Neospora caninum infection in Holstein cattle in Ontario.
Journal of dairy science 2004;87(11):3967-75.
2004: Andrew S Peregrine; Todd F Duffield; Greg Wideman; David F Kelton; Jamie Hobson; Gerard Cramer; Sharon K Hietala
Udder health in dairy cattle infected with Neospora caninum.
Preventive veterinary medicine 2004;64(2-4):101-12.
2004: G Cottee; I Kyriazakis; TM Widowski; Michael Lindinger; John P Cant; Todd F Duffield; Vern Osborne; Brian W McBride
The effects of subacute ruminal acidosis on sodium bicarbonate-supplemented water intake for lactating dairy cows.
Journal of dairy science 2004;87(7):2248-53.
2004: Ramanathan Kasimanickam; Todd F Duffield; Robert A Foster; Cathy J Gartley; Ken E Leslie; John S Walton; Walter H Johnson
Endometrial cytology and ultrasonography for the detection of subclinical endometritis in postpartum dairy cows.
Theriogenology 2004;62(1-2):9-23.
2004: J K Osborne; Timothy Mutsvangwa; Ousama AlZahal; Todd F Duffield; Randy Bagg; Paul Dick; Gordon H Vessie; Brian W McBride
Effects of monensin on ruminal forage degradability and total tract diet digestibility in lactating dairy cows during grain-induced subacute ruminal acidosis.
Journal of dairy science 2004;87(6):1840-7.
2004: Randy T Dingwell; Ken E Leslie; Ynte Schukken; Jan M Sargeant; Leo L Timms; Todd F Duffield; Greg Keefe; David F Kelton; Kerry D Lissemore; J Conklin
Association of cow and quarter-level factors at drying-off with new intramammary infections during the dry period.
Preventive veterinary medicine 2004;63(1-2):75-89.
2004: Stephen J LeBlanc; T H Herdt; W M Seymour; Todd F Duffield; Ken E Leslie
Peripartum serum vitamin E, retinol, and beta-carotene in dairy cattle and their associations with disease.
Journal of dairy science 2004;87(3):609-19.
2004: Barry N Milligan; Todd F Duffield; Kerry D Lissemore
The utility of ketoprofen for alleviating pain following dehorning in young dairy calves.
The Canadian veterinary journal. La revue vétérinaire canadienne 2004;45(2):140-3.
2004: Dorothee Bienzle; Anthony Abrams-Ogg; C Bolam; A Leclerc; S Weese; Todd F Duffield; M B MacDonald; Beverly McEwen
New committee formed at the University of Guelph to investigate cases of possible abuse of client-owned animals.
The Canadian veterinary journal. La revue vétérinaire canadienne 2004;45(1):7.
2004: Todd F Duffield; JC Plaizier; AM Fairfield; Randy Bagg; Gordon H Vessie; Paul Dick; J Wilson; Jeff Aramini; B McBride
Comparison of techniques for measurement of rumen pH in lactating dairy cows.
Journal of dairy science 2004;87(1):59-66.
2003: Todd F Duffield; Randy Bagg; David F Kelton; Paul Dick; J Wilson
A field study of dietary interactions with monensin on milk fat percentage in lactating dairy cattle.
Journal of dairy science 2003;86(12):4161-6.
2003: Timothy Mutsvangwa; John K G Kramer; Clarke B Blackadar; Todd F Duffield; Randy Bagg; Paul Dick; Gordon H Vessie; Brian W McBride
Short communication: Effects of a monensin premix on milk fatty acid content during subacute ruminal acidosis in dairy cows.
Journal of dairy science 2003;86(12):4043-6.
2003: SK Tallam; Todd F Duffield; Ken E Leslie; Randy Bagg; Paul Dick; Gordon H Vessie; John S Walton
Ovarian follicular activity in lactating Holstein cows supplemented with monensin.
Journal of dairy science 2003;86(11):3498-507.
2003: Todd F Duffield; Stephen J LeBlanc; Randy Bagg; K Leslie; J Ten Hag; Paul Dick
Effect of a monensin controlled release capsule on metabolic parameters in transition dairy cows.
Journal of dairy science 2003;86(4):1171-6.
2003: J E Keunen; JC Plaizier; I Kyriazakis; Todd F Duffield; TM Widowski; Michael Lindinger; Brian W McBride
Short communication: Effects of subacute ruminal acidosis on free-choice intake of sodium bicarbonate in lactating dairy cows.
Journal of dairy science 2003;86(3):954-7.
2003: Todd F Duffield; Kerry D Lissemore; David Sandals
Teaching the principles of health management to first year veterinary students.
Journal of veterinary medical education 2003;30(1):64-6.
2003: Randy T Dingwell; Ken E Leslie; Todd F Duffield; Ynte Schukken; L DesCoteaux; Greg Keefe; David F Kelton; Kerry D Lissemore; W Shewfelt; Paul Dick; Randy Bagg
Efficacy of intramammary tilmicosin and risk factors for cure of Staphylococcus aureus infection in the dry period.
Journal of dairy science 2003;86(1):159-68.
2002: Timothy Mutsvangwa; JP Walton; JC Plaizier; Todd F Duffield; Randy Bagg; Paul Dick; Gordon H Vessie; Brian W McBride
Effects of a monensin controlled-release capsule or premix on attenuation of subacute ruminal acidosis in dairy cows.
Journal of dairy science 2002;85(12):3454-61.
2002: J E Keunen; JC Plaizier; L Kyriazakis; Todd F Duffield; TM Widowski; Michael Lindinger; Brian W McBride
Effects of a subacute ruminal acidosis model on the diet selection of dairy cows.
Journal of dairy science 2002;85(12):3304-13.
2002: Randy T Dingwell; Todd F Duffield; Ken E Leslie; Greg Keefe; L DesCoteaux; David F Kelton; Kerry D Lissemore; Ynte Schukken; Paul Dick; Randy Bagg
The efficacy of intramammary tilmicosin at drying-off, and other risk factors for the prevention of new intramammary infections during the dry period.
Journal of dairy science 2002;85(12):3250-9.
2002: Gerard Cramer; David F Kelton; Todd F Duffield; Jamie C Hobson; Kerry D Lissemore; Sharon K Hietala; Andrew S Peregrine
Neospora caninum serostatus and culling of Holstein cattle.
Journal of the American Veterinary Medical Association 2002;221(8):1165-8.
2002: Jamie C Hobson; Todd F Duffield; David F Kelton; Kerry D Lissemore; Sharon K Hietala; Ken E Leslie; Beverly McEwen; Gerard Cramer; Andrew S Peregrine
Neospora caninum serostatus and milk production of Holstein cattle.
Journal of the American Veterinary Medical Association 2002;221(8):1160-4.
2002: Stephen J LeBlanc; Todd F Duffield; Ken E Leslie; Ken G Bateman; Greg Keefe; John S Walton; Walter H Johnson
The effect of treatment of clinical endometritis on reproductive performance in dairy cows.
Journal of dairy science 2002;85(9):2237-49.
2002: Stephen J LeBlanc; Todd F Duffield; Ken E Leslie; Ken G Bateman; Greg Keefe; John S Walton; Walter H Johnson
Defining and diagnosing postpartum clinical endometritis and its impact on reproductive performance in dairy cows.
Journal of dairy science 2002;85(9):2223-36.
2002: Stephen J LeBlanc; Todd F Duffield; Ken E Leslie; Ken G Bateman; Jeromy TenHag; John S Walton; Walter H Johnson
The effect of prepartum injection of vitamin E on health in transition dairy cows.
Journal of dairy science 2002;85(6):1416-26.
2002: Todd F Duffield; Randy Bagg; L DesCoteaux; EMILE BOUCHARD; M Brodeur; Denis DuTremblay; Greg Keefe; Stephen J LeBlanc; Paul Dick
Prepartum monensin for the reduction of energy associated disease in postpartum dairy cows.
Journal of dairy science 2002;85(2):397-405.
2000: JC Plaizier; A Martin; Todd F Duffield; Randy Bagg; Paul Dick; Brian W McBride
Effect of a prepartum administration of monensin in a controlled-release capsule on apparent digestibilities and nitrogen utilization in transition dairy cows.
Journal of dairy science 2000;83(12):2918-25.
2000: JC Plaizier; JP Walton; A Martin; Todd F Duffield; Randy Bagg; Paul Dick; Brian W McBride
Short communication: effects of monensin on 3-methylhistidine excretion in transition dairy cows.
Journal of dairy science 2000;83(12):2810-2.
2000: Thomas Geishauser; K Leslie; Todd F Duffield
Metabolic aspects in the etiology of displaced abomasum.
The Veterinary clinics of North America. Food animal practice 2000;16(2):255-65, vi.
2000: Todd F Duffield
Subclinical ketosis in lactating dairy cattle.
The Veterinary clinics of North America. Food animal practice 2000;16(2):231-53, v.
2000: Todd F Duffield; Randy Bagg
Use of ionophores in lactating dairy cattle: a review.
The Canadian veterinary journal. La revue vétérinaire canadienne 2000;41(5):388-94.
2000: A Croft; Todd F Duffield; Paula I Menzies; K Leslie; Randy Bagg; Paul Dick
The effect of tilmicosin administered to ewes prior to lambing on incidence of clinical mastitis and subsequent lamb performance.
The Canadian veterinary journal. La revue vétérinaire canadienne 2000;41(4):306-11.
1999: Todd F Duffield; Ken E Leslie; David Sandals; Kerry D Lissemore; Brian W McBride; JH Lumsden; Paul Dick; Randy Bagg
Effect of a monensin-controlled release capsule on cow health and reproductive performance.
Journal of dairy science 1999;82(11):2377-84.
1999: Todd F Duffield; Ken E Leslie; David Sandals; Kerry D Lissemore; Brian W McBride; JH Lumsden; Paul Dick; Randy Bagg
Effect of prepartum administration of monensin in a controlled-release capsule on milk production and milk components in early lactation.
Journal of dairy science 1999;82(2):272-9.
1999: Thomas Geishauser; K Leslie; Todd F Duffield; Victoria L Edge
The association between first DHI milk-test parameters and subsequent displaced abomasum diagnosis in dairy cows.
Berliner und Münchener tierärztliche Wochenschrift 1999;112(1):1-4.
1998: Todd F Duffield; David Sandals; Ken E Leslie; Kerry D Lissemore; Brian W McBride; JH Lumsden; Paul Dick; Randy Bagg
Efficacy of monensin for the prevention of subclinical ketosis in lactating dairy cows.
Journal of dairy science 1998;81(11):2866-73.
1998: Thomas Geishauser; K Leslie; Todd F Duffield; David Sandals; Victoria L Edge
The association between selected metabolic parameters and left abomasal displacement in dairy cows.
Zentralblatt für Veterinärmedizin. Reihe A 1998;45(8):499-511.
1998: Todd F Duffield; David Sandals; Ken E Leslie; Kerry D Lissemore; Brian W McBride; JH Lumsden; Paul Dick; Randy Bagg
Effect of prepartum administration of monensin in a controlled-release capsule on postpartum energy indicators in lactating dairy cows.
Journal of dairy science 1998;81(9):2354-61.
1998: Thomas Geishauser; Ken E Leslie; Todd F Duffield; Victoria L Edge
An evaluation of protein/fat ratio in first DHI test milk for prediction of subsequent displaced abomasum in dairy cows.
Canadian journal of veterinary research = Revue canadienne de recherche vétérinaire 1998;62(2):144-7.
1998: Thomas Geishauser; K Leslie; David F Kelton; Todd F Duffield
Evaluation of five cowside tests for use with milk to detect subclinical ketosis in dairy cows.
Journal of dairy science 1998;81(2):438-43.
1997: Thomas Geishauser; K Leslie; Todd F Duffield; Victoria L Edge
An evaluation of milk ketone tests for the prediction of left displaced abomasum in dairy cows.
Journal of dairy science 1997;80(12):3188-92.
1997: Thomas Geishauser; K Leslie; Todd F Duffield; Victoria L Edge
Evaluation of aspartate transaminase activity and beta-hydroxybutyrate concentration in blood as tests for prediction of left displaced abomasum in dairy cows.
American journal of veterinary research 1997;58(11):1216-20.
1997: Todd F Duffield; David F Kelton; Ken E Leslie; Kerry D Lissemore; JH Lumsden
Use of test day milk fat and milk protein to detect subclinical ketosis in dairy cattle in Ontario.
The Canadian veterinary journal. La revue vétérinaire canadienne 1997;38(11):713-8.
1997: Thomas Geishauser; K Leslie; Todd F Duffield; Victoria L Edge
Fat/protein ratio in first DHI test milk as test for displaced abomasum in dairy cows.
Zentralblatt für Veterinärmedizin. Reihe A 1997;44(5):265-70.