Chaiyotwittayakun, A.,
R.J. Erskine, P.C. Bartlett, T. Herdt, P.M. Sears, and
R.J. Harmon. 2002. The effect of ascorbic acid
and L-histidine therapy on acute mammary inflammation
in dairy cattle. Journal of Dairy Science 85:60-67.
Van de Ligt, J.L.G.,
M.D. Lindemann, R.J. Harmon, H.J. Monegue, and
G.L. Cromwell. 2002. Effect of chromium tripicolinate
supplementation on porcine immune response during the
periparturient and neonatal period. Journal of Animal
Science 80:456-466.
Van de Ligt, J.L.G.,
M.D. Lindemann, R.J. Harmon, H.J. Monegue, and
G.L. Cromwell. 2002. Effect of chromium tripicolinate
supplementation on porcine immune response during the
postweaning period. Journal of Animal Science 80:449-455.
Scaletti,
R.W., and R.J. Harmon. 2002. Brief research update:
Copper supplementation and its role in decreasing severity
of mastitis. pp. 21-25. Proceedings, Kentucky Ruminant
Nutrition Workshop, University of Kentucky, Lexington.
Harmon, R.J.
Organic minerals in livestock. 2001. pp.1-17. Proceedings,
California Animal Nutrition Conference, Fresno, Calif.
Harmon, R.J.
Use of organic minerals in livestock diets. 2001. Alltech
Organic Trace Mineral Summit. Indianapolis, Ind.
Scaletti, R.W., D.S.
Trammell, B.A. Smith, and R.J. Harmon. Role of
dietary copper in altering response to intramammary E.
coli challenge. 2001. pp. 29-33. Proceedings, International
Mastitis Symposium, National Mastitis Council/American
Association of Bovine Practitioners, Vancouver, BC, Canada.
Xiong, Y.L., X.
Lou, R.J. Harmon, C. Wang, and W.G. Moody. 2000.
Salt and pyrophosphate-induced structural changes in myofibrils
from chicken red and white muscles. Journal of the Science
of Food and Agriculture, 80:1176-1182.
Harmon, R.J.
2000. Trace mineral nutrition for dairy. pp. 22-37. Proceedings,
Southern Dairy
School ,
San Antonio , Texas
.
Harmon, R.J.
2000. From mastitis control to reproduction: Economic
implications of organic trace minerals. pp. 10-25. Proceedings,
4th International Dairy Short Course, Boise
, Idaho .
Scaletti, R.W.,
and R.J. Harmon. 2000. Supplementing dietary copper
to reduce the incidence of mastitis in dairy heifers.
pp. 37-39. Proceedings, 2000 Kentucky
Dairy Conference, University
of Kentucky
, Lexington.
Hogan, J.S., R.N.
Gonzalez, R.J. Harmon, S.C. Nickerson, S.P. Oliver,
J.W. Pankey, and K.L. Smith. 1999. Laboratory Handbook
on Bovine Mastitis. National Mastitis Council,
Madison , Wis.
222 pp.
Harmon, R.J.
1999. Importance of udder health and impact of nutrition
on mastitis. pp. 12-17. Proceedings, 1st International
Dairy Symposium. University
of Sao Paulo
and Federal
University
of Parana
, Curitiba
, PR, Brazil
(Portuguese).
Harmon, R.J.
1999. Influence of copper on somatic cell counts and mastitis.
pp. 24-34. Proceedings, Southeast Dairy Herd Management
Conference. University
of Georgia
, Athens
.
Harmon, R.J.
1999. Somatic cell counts: Myths vs. reality. pp.
105-114. Proceedings, Southeast Dairy Herd Management
Conference. University
of Georgia
, Athens
.
Harmon, R.J.
1999. Impact of trace mineral nutrition of the dry cow
on udder health. pp. 1-15. Proceedings, Dairy Nutrition
and Management Conference. Iowa
State University
, Cooperative Extension Service,
Ames .
Harmon, R.J.
1998. Trace minerals and dairy cattle: Importance
for udder health. pp. 285-495. IN: T.P. Lyons and K.A.
Jacques, eds. Biotechnology in the Feed Industry.
Nottingham University
Press, Nottingham
, United Kingdom
.
Hemken, R.W.,
R.J. Harmon, and S. Trammell. 1998. Selenium for dairy
cattle: A role for organic selenium. pp. 497-503. IN:
T.P. Lyons and K.A. Jacques, eds. Biotechnology in the
Feed Industry. Nottingham
University
Press, Nottingham , United
Kingdom .
Harmon, R.J.
1998. Somatic cell counts: Myths versus reality. pp. 40-50.
Proceedings, National Mastitis Council Regional Meeting,
Madison, Wisc.
Harmon, R.J.
1998. Nutritional impact of copper on mastitis. pp. 171-183.
Proceedings, 33rd Annual Meeting Pacific Northwest
Animal Nutritional Conference, Vancouver
, B.C., Canada
.
Harmon, R.J.
1998. Factors that affect somatic cell counts. pp. 7-15.
Proceedings, First International Symposium on Milk Quality.
(Portuguese). Federal
University
of Parana
, Curitiba
, PR, Brazil
.
Harmon, R.J.
1998. Economics of bovine mastitis. pp. 36-39. Proceedings,
First International Symposium on Milk Quality. (Portuguese).
Federal University
of Parana
, Curitiba
, PR, Brazil
.
Jackson, J.A.,
R.J. Harmon, and Z. Tabeidie. 1997. Effect of dietary
supplementation with vitamin E for lactating dairy cows
fed tall fescue hay infected with endophyte. Journal of
Dairy Science, 80:569-572.
Harmon, R.J.
1997. Economic implications of mastitis and its control.
pp. 15-18. Proceedings II Seminar: Quality of Bovine Milk,
Osorno ,
Chile (Spanish).
Harmon, R.J.
1997. Pathogens that cause bovine mastitis and characteristics
of infections. pp. 19-23. Proceedings II Seminar: Quality
of Bovine Milk, Osorno
, Chile
(Spanish).
Harmon, R.J.
1997. What to evaluate on the farm. pp. 32-33. Proceedings
II Seminar: Quality of Bovine Milk, Osorno
, Chile
(Spanish).
Harmon, R.J.
1997. Controlling mastitis caused by contagious pathogens.
pp. 71-81. Proceedings II Seminar: Quality of Bovine Milk,
Osorno ,
Chile (Spanish).
Harmon, R.J.
1997. The future of milk quality in the world: The
USA-NMC point of view. pp. 103-104. Proceedings II Seminar:
Quality of Bovine Milk, Osorno
, Chile
(Spanish).
Torre, P.M., R.J. Harmon, R.W.
Hemken, T.W. Clark, D.S. Trammell, and B.A. Smith. 1996.
Mild dietary copper insufficiency depresses blood neutrophil
function in dairy cattle. J. Nutr. Immunol. 4(3): (in
press).
Jackson, J.A., R.J. Harmon,
and Z. Tabeidi. 1996. Effect of dietary supplementation
with vitamin E for lactating dairy cows fed endophyte-infected
tall fescue hay. J. Dairy Sci. 79: (accepted)
Torre, P.M., R.J. Harmon, L.M.
Sordillo, G.A. Boissonneault, R.W. Hemken, D.S. Trammell,
and T.W. Clark. 1995. Modulation of bovine mononuclear
cell proliferation and cytokine production by dietary
copper insufficiency. J. Nutr. Immunol. 3(4):3-20.
Harmon, R.J. 1994. Physiology
of mastitis and factors affecting somatic cell counts.
J. Dairy Sci. 77:2103.
Matthews, K.R., S.J. Kumar, S.A. O'Conner,
R.J. Harmon, J.W. Pankey, L.K. Fox, and S.P. Oliver.
1994. Genomic fingerprints of Staphylococcus aureus
of bovine origin by polymerase chain reaction-based DNA
fingerprinting. Epidemiol. Infect. 112:177-186.
Xin, Z., D.F. Waterman, R.W. Hemken,
and R.J. Harmon. 1993. Copper status and requirement
during the dry period and early lactation in multiparous
Holstein cows. J. Dairy Sci. 76:2711-2716.
Shuster, D.E. and R.J. Harmon.
1992. High cortisol concentration and mediation of the
hypogalactia during endotoxin-induced mastitis. J. Dairy
Sci. 75:739-746.
K.R. Matthews, R.J. Harmon,
and B.E. Langlois. 1992. Coagulase-negative Staphylococcus
species and Staphylococcus aureus prevalence during
the periparturient period in primiparous and multiparous
cows. J. Dairy Sci. 75:1835-1839.
Matos, J.S., D.G. White, R.J. Harmon,
and B.E. Langlois. 1991. Isolation of Staphylococcus
aureus from sites other than the lactating bovine
mammary gland. J. Dairy Sci. 74:1544-1549.
Shuster, D.E., R.J. Harmon,
J.A. Jackson, and R.W. Hemken. 1991. Suppression of milk
production during endotoxin-induced mastitis. J. Dairy
Sci. 74:3763-3774.
Shuster, D.E., R.J. Harmon,
J.A. Jackson, and R.W. Hemken. 1991. Endotoxin mastitis
in cows milked four times daily. J. Dairy Sci. 74:1527-1538.
Matthews, K.R., R.J. Harmon,
and B. E. Langlois. 1991. Effect of naturally occurring
coagulase-negative staphylococci infections on new infections
by mastitis pathogens in the bovine. J. Dairy Sci. 74:1855-1859.
Shuster, D.E., R.J. Harmon,
J.A. Jackson, and R.W. Hemken. 1991. Reduced lactational
performance following intravenous endotoxin administration
to dairy cows. J. Dairy Sci. 74:3407-3411.
Xin, Z., D.F. Waterman, R.W. Hemken,
R.J. Harmon, and J.A. Jackson. 1991. Effects of
copper sources and dietary cation-anion balance on copper
availability and acid-base status in dairy calves. J.
Dairy Sci. 74:3167-3173.
Xin, Z., D.F. Waterman, R.W. Hemken,
and R.J. Harmon. 1991. Effects of copper status
on neutrophil function, superoxide dismutase, and copper
distribution in steers. J. Dairy Sci. 74:3078-3085.
Shuster, D.E. and R.J. Harmon.
1991. Lactating cows become partially refractory to frequent
intramammary endotoxin infusions: recovery of milk yield
despite a persistently high somatic cell count. Res. Vet.
Sci. 51:272-277.
Hemken, R.W., R.J. Harmon,
W.J. Silvia, W.B. Tucker, G. Heersche, and R.G. Eggert.
1991. Effect of dietary energy and previous bovine somatotropin
on milk yield, mastitis, and reproduction in dairy cows.
J. Dairy Sci. 74:4265-4272.
Oliver, S.P., V.K. Juneja, and R.J.
Harmon. 1990. Influence of nonlactating and peripartum
bovine mammary secretions on growth of Staphylococcus
species. J. Dairy Sci. 73:995-999.
White, D.G., R.J. Harmon and
B.E. Langlois. 1990. Fluorogenic assay for differentiating
Staphylococcus warneri and Staphylococcus hominis
strains of bovine origin. J. Clin. Microbiol. 28:602.
Langlois, B.E., A.K. Parlindungan,
R.J. Harmon, and K. Akers. 1990. Biochemical characteristics
of Staphylococcus species of human and bovine origin.
J. Food Protect. 53:119-126.
Jackson, J.A., D.E. Shuster, W.J.
Silvia, and R.J. Harmon. 1990. Physiological responses
to intramammary or intravenous treatment with endotoxin
in lactating dairy cows. J. Dairy Sci. 73:627-632.
Matthews, K.R., R.J. Harmon,
and B.A. Smith. 1990. Protective effect of naturally occurring
Staphylococcus chromogenes infection against experimental
Staphylococcus aureus infection in the lactating bovine
mammary gland. J. Dairy Sci. 73:3457-3462.
Shuster, D.E. and R.J. Harmon.
1990. Enzyme immunoassay of lactoferrin and serum albumin
in acid precipitated and ultracentrifugal wheys. J. Dairy
Sci. 73:3104-3111.
Hogan, J.S., D.M. Galton, R.J.
Harmon, S.C. Nickerson, S.P. Oliver, J.W. Pankey.
1990. Protocols for evaluating efficacy of postmilking
teat dips. J. Dairy Sci. 73:2580-2585.
