Gary Hay

Hay, Gary M.
Title Professor / Extension Specialist
Department Tangipahoa Parish
E-mail GHay@agcenter.lsu.edu
Address 1 305 East Oak Street
Amite, LA 70422
Phone 985-748-9381
Fax 985-748-3787

Gamma Sigma Delta Extension Award
4-H Specialist Award for Service to Louisiana 4-H
Master Farmer Award from Louisiana FFA

Selected Extension Publications

1992 -2008 Dairy Digest, a bimonthly extension newsletter for dairy producers and dairy industry professionals.

Producing Quality Milk Using a Comprehensive Mastitis Control Program. Louisiana Dairy Digest. 2004.

Using DHI Somatic Cell Counts to Manage Bulk Tank Somatic Cell Counts. Louisiana Dairy Digest. 2005.

Take a Look at Fluid Merit Dollars (FM$) as a Sire Selection Criteria. Louisiana Dairy Digest. 2004.

Disaster Preparedness on a Dairy Farm. Louisiana Dairy Digest. 2006.

Biosecurity on a Dairy Farm. Louisiana Dairy Digest. 200?. Louisiana Dairy Digest. 2005.

Mycoplasma Mastitis in Dairy Cattle. Louisiana Dairy Digest. 2003.

Using PCDART Reports to Help Control Bulk Tank Somatic Cell Counts (BTSCC). Louisiana Dairy Digest. 2003.

LSU AgCenter Dairy Verification Projects, Treating Prepartum Dairy Heifers with Dry Cow and Lactating Cow Intramammary Antibiotics. Louisiana Dairy Digest. 2004

What Does it Cost You to Produce Milk? Louisiana Dairy Digest. 2005.

Lowering Summertime Somatic Cell Counts. Louisiana Dairy Digest. 2005.

Dealing with Mastitis and High Somatic Cell Counts After Hurricanes Katrina and Rita. Louisiana Dairy Digest. 2005.

Low Milk Prices and High Energy Costs. Louisiana Dairy Digest. 2006.

Get Ready for Late Summer and Early Fall Calving. Louisiana Dairy Digest. 2006.

The Louisiana Dairy Industry. Report for the Louisiana Legislature Dairy Stabilization Committee. 2004.

Best Management Practices for Dairy in Louisiana. Louisiana Extension Publication Number . 1995.

Research Abstracts and Journal Articles:

Hay, G.M. and R.W. Adkinson. 1987. Correlations between sire Predicted Difference and daughter breeding values for milk yield, fat yield, fat percent and type in Holstein cattle. J. Dairy Sci. 70 (Suppl. 1):233 (Abstr.).

Hay, G.M. and R.W. Adkinson. 1986. Genetic change in udder measurements and clinical mastitis resulting from single and multiple trait sire selection in Holstein cattle.J. Dairy Sci. 69 (Suppl. 1):171 (Abstr.).

Hay, G.M. and R.W. Adkinson. 1986. A comparison of breeding values for milk yield, days to first service and days open in Holstein cattle produced by single and multiple trait sire selection. J. Dairy Sci. 69 (Suppl. 1):171 (Abstr.).

Adkinson, R.W. and G.M. Hay. 1986. Changes in breeding values resulting from multiple and single trait sire selection in Holstein cattle. J. Dairy Sci. 69 (Suppl. 1):275 (Abstr.).

Chandler, J.E., R.W. Adkinson, G.M. Hay and R.L. Crain. 1985. Environmental and genetic influence on seminal quality in mature Holstein bulls. J. Dairy Sci. 68:1270.

Adkinson, R.W. and G.M. Hay. 1984. Mastitis in Holstein cattle bred under index and single trait sire selection. J. Dairy Sci. 67 (Suppl. 1):225 (Abstr.).

Hay, G.M., and R.W. Adkinson. 1984. Reproductive parameters of Holstein cattle bred using index and single trait sire selection. J. Dairy Sci. 67 (Suppl. 1):231 (Abstr.).

Chandler, J.E., R.L. Crain, G.M. Hay, and R.W. Adkinson. 1984. Environmental and genetic influence on seminal quality in mature Holstein bulls. J. Dairy Sci. 67 (Suppl. 1):237 (Abstr.).

Hay, G.M., J.M. White, W.E. Vinson, and R.H. Kliewer. 1983. Components of genetic variation for descriptive type traits of Holstein cattle. J. Dairy Sci. 66:1962.

Hay, G.M., J.M. White, W.E. Vinson, and R.H. Kliewer. 1983. The effects of corrective mating for descriptive type traits in Holstein cattle. J. Dairy Sci. 66:1955.

Hay, G.M., R.W. Adkinson, and J.E. Chandler. 1983. Milking and udder traits of Holsteins bred using two sire selection criteria. J. Dairy Sci. 66 (Suppl. 1):112 (Abstr.).

Duraes, M.C., G.M. Hay, and R.W. Adkinson. 1982. Growth of crossbred heifers produced by interbreed mating of dairy cattle. J. Dairy Sci. 65 (Suppl. 1):224 (Abstr.).

Duraes, M.C., G.M. Hay and R.W. Adkinson. 1982. Heterosis for body size traits in crossbred dairy heifers. J. Dairy Sci. 65 (Suppl. 1):223 (Abstr.).

1979-1980    Assistant County Agent, Richland Parish, La.
1980-1985    Research Associate, Dept. of Dairy Science, LSU
1985-1989    Assistant Professor, Dept. of Agriculture, Southwest Missouri State University
1990-1998    Dairy Extension Specialist, LSU AgCenter
1999-2000    Assistant Director, Dairy Records Management Systems, North Carolina State University
2001-            Professor and Extension Specialist, LSU AgCenter

Dairy Extension, General Dairy Herd Management, Dairy Records Management, Mastitis Control, Dairy Cattle Genetics

B.S. Louisiana Tech University, Animal Science
M.S. Virginia Polytechnic Institute and State University, Dairy Science
Ph.D. Louisiana State University, Dairy Science

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