Professor / Associate Chair
Education:
Ph.D. - University of Vermont – 1986
MS – University of Kentucky - 1983
BS – Louisiana State University – 1981
Discipline(s):
Mammary Biology
Microbiology
Websites of interest:
AS 494 Animal Disease
Calvin and Hobbes
NMC
Sports Illustrated
Courses Taught:
AS 413 Animal Disease
Milk Secretion (AS 317)
Grants & Awards:
2006-Hamilton-Jones, Corp. Effects of bedding conditioner on bacterial counts of bedding in free stalls. $12,000. J.S. Hogan.
2006-Hamilton-Jones, Corp. Effects of bedding conditioner in calf hutches on calf health. $11,600. J.S. Hogan
2007-ADM Nutrition. Neutrophil Responses when Peripartum Dairy Cows are Fed Natural or Synthetic Vitamin E. $45,500. W.P. Weiss and J.S. Hogan.
2007-Monsanto, Co. Effects of rbST on mastitis in primiparous cows. $84,500. J.S. Hogan.
2007-IBA, Inc. Effects of bedding conditioner on bacterial counts of bedding in free stalls. $10,000. J.S. Hogan.
Publications:
Hogan, J.S., V. B. Cannon, K. L. Smith, C. Rinehart, and S. Miller. 2005. Effects of adjuvants on safety and efficacy of an Escherichia coli J5 bacterin. J. Dairy Sci. 88: 534-542.
Rajala-Schultz, P.J., J. S. Hogan, and K. L. Smith. 2005. Association between milk yield at dry-off and probability of intramammary infections at calving. J. Dairy Sci. 88: 577-579.
Kristula, M.A., W. Rogers, J. S. Hogan and M. Sabo. 2005. Comparison of bacteria populations in clean and recycled sand used for bedding in dairy facilities. J. Dairy Sci. 88:4317-4325.
Weiss, W.P., and J.S. Hogan. 2005. Effect of selenium source on selenium status, neutrophil function, and response to intramammary endotoxin challenge of dairy cows. J. Dairy Sci. 88: 4366-4374.
Borm, A.A., L. K. Fox, K. E. Leslie, J. S. Hogan, S. M. Andrew, K. M. Moyes, S. P. Oliver, Y. H. Schukken, D. D. Hancock, C. T. Gaskins, W. E. Owens, and C. Norman. 2006. Effects of prepartum intramammary antibiotic therapy on udder health, milk production, and reproductive performance in dairy heifers. J. Dairy Sci. 89:2090-2098.
Weiss, W. P., and J. S. Hogan. 2007. Effects of dietary vitamin C on neutrophil function and responses to intramammary infusion of lipopolysaccharide in periparturient dairy cows. J. Dairy Sci. 90:731-739.
Hogan, J. S., S. L. Wolf, and C. S. Petersson-Wolfe. 2007. Bacterial counts in organic materials used as free-stall bedding following treatment with a commercial conditioner. J. Dairy Sci. 90:1058-1062.
Petersson-Wolfe, C .S., S. L. Wolf, and J. S. Hogan. 2007. In vitro growth of enterococci of bovine origin in bovine mammary secretions from various stages of lactation. J Dairy Sci. 90: 4226-4231.
Species:
Dairy
Dr. Hogan's research and extension teaching is in the area of bovine mastitis.