NE1441: Environmental Impacts of Equine Operations

(Multistate Research Project)

Status: Active

SEAS-422 Reports

05/11/2016

Westendorf, M. L., C. A. Williams, and L. B. Kenny. 2015. Case Study: Protection of environmental resources through the implementation of optimum feed-management practices on equine farms. Prof. Anim. Sci. 31:296-301.  (http://pas.fass.org/content/31/3/296.full.pdf+html).    


Westendorf, M. L. and C. A. Williams.  2015.  Effects of excess dietary phosphorus on fecal phosphorus excretion and water extractable phosphorus in horses. J. Equine Vet. Sci. 35:495-498.(http://www.sciencedirect.com/science/article/pii/S0737080615000465)

06/21/2017


  1. L. Trottier, R. C. Bott, A. Woodward, E.A. Greene, C. A. Williams, M. L. Westendorf, A. M. Swinker, S.L. Mastellar, and K. M. Martinson. 2016.   Gastrointestinal Nitrogen Metabolism of Equids and Impact on Protein Requirement.  J. Equine Vet. Sci. 45:78-86. (http://www.j-evs.com/article/S0737-0806(16)30283-0/pdf).

  2. C. Bott, A. Woodward, E.A. Greene, N. L. Trottier, C. A. Williams, M. L. Westendorf, A. M. Swinker, S. L. Mastellar, and K. M. Martinson.  2016.   Environmental Implications of Nitrogen Output on Horse Operations: A Review.  J. Equine Vet. Sci. 45:98-106. (http://www.j-evs.com/article/S0737-0806(15)00549-3/pdf).

01/31/2018

Journal Articles


Siciliano, P.D.,  Jennifer C. Gill, Morghan A. Bowman.  2017.  Effect of Sward Height on Pasture Nonstructural Carbohydrate Concentrations and Blood Glucose/Insulin Profiles in Grazing Horses, J. of Equine Vet. Sci. 57:29-34.


Martinson, K.L., P.D. Siciliano, C.C. Sheaffer, B.J. McIntosh, A.M. Swinker, C.A. Williams. 2017.  A Review of Equine Grazing Research Methodologies.  J. Equine Vet. Sci. 51:92-104.


Siciliano PD. Methods for Regulating Dry Matter Intake in Grazing Horses - eXtension 2017.


https://articles.extension.org/pages/74360/methods-for-regulating-dry-matter-intake-in-grazing-horses (accessed July 14, 2017)


Weir, H. Li, L.K. Warren, E. Macon, C. Wickens. 2017. Characterizing ammonia emissions from horses fed different crude protein concentrations. J. Anim. Sci. 95(8):3598-3608. doi: 10.2527/jas.2017.1648.


Nazarenko, Y., M. L. Westendorf, C. A. Williams, and G. Mainelis.  2018. The Effects of Bedding Type used in Stalls and Activity of Equines on Stall Air Quality: Potential Consequences for Health and Performance of Equines. J. Equine Vet. Sci. (Accepted with minor corrections).


Kenny, L. B., D. Ward, M. Robson, C. A. Williams. 2018.  Technical note: Comparing four techniques for estimating desired grass species composition in horse pastures.  J. Anim. Sci. (in press).


Martinson, K. L., P. Siciliano, C. C. Sheaffer, B. McIntosh, A. M. Swinker and C. A. Williams.  2017.  A review of equine grazing research methodologies.  J. Equine Vet. Sci.  51:92-104. doi: 10.1016/j.jevs.2017.01.002


 


Abstracts


Williams, C. A. 2017. Nutrient cycling in horse pastures. Waste to Worth Conf. Proc. Raleigh, NC. Online: http://articles.extension.org/pages/74361/nutrient-cycling-in-horse-pastures


Williams, C. A., L. B. Kenny, and A. O. Burk. 2017. Effects of grazing system and season on glucose and insulin dynamics of the grazing horse.  J. Equine Vet. Sci. 52:87. Abstract #108.


Weir, H. Li, L.K. Warren, E. Macon, C. Wickens. 2017. Evaluating the Impact of Ammonia Emissions from Equine Operations on the Environment. Waste to Worth: Spreading Science and Solutions. Cary, NC. April 18-21, 2017. https://articles.extension.org/pages/74272/evaluating-the-impact-of-ammonia-emissions-from-equine-operations-on-the-environment. Accessed on: February 3, 2018.


J.M. Weir, H. Li, L.K. Warren, E. Macon, C. Wickens. 2017. Manure nitrogen characteristics from horses fed warm season grass hays. J. Equine Vet. Sci. 52:84. doi: https://doi.org/10.1016/j.jevs.2017.03.114


J.M. Weir, H. Li, E. Rankins, C. Wickens. 2017. Ammonia emissions from equine facilities in the Mid-Atlantic region. J. Equine Vet. Sci. 52:102. doi: https://doi.org/10.1016/j.jevs.2017.03.155


J.M. Weir, H. Li, C. Zhang, D. Ferguson, S. Dougherty, C. Wickens. 2017. Determining the aversion of horses to different ammonia concentrations. J. Equine Vet Sci. 52:104. doi: https://doi.org/10.1016/j.jevs.2017.03.161


Wickens, M. Lusk, J. Hinton, J. Wallace, C. LaRiche, V.J. Harwood. 2017. Manure Management Practices and Educational Needs of Florida Small Scale Equine Operations. American Society of Agronomy, Crop Science Society of America, Soil Science Society of America International Annual Meeting, Managing Global Resources for a Secure Future. ASA Section: Environmental Quality, Tampa FL, October 22-25, 2017. https://scisoc.confex.com/scisoc/2017am/webprogram/Paper106554.html. Accessed on: February 3, 2018.


 


Research report


http://www.pennsylvaniaequinecouncil.org/pdf/2017/1-17%20parasite%20project%20impact%20statement.pdf


 


Factsheets


Low Cost Equine Manure Compost: http://ag.umass.edu/sites/ag.umass.edu/files/fact-sheets/pdf/low_cost_equine_manure_composting_16_01_3.pdf


Manure composting for small livestock operation: http://ag.umass.edu/sites/ag.umass.edu/files/fact-sheets/pdf/manure_composting_for_small_livestock_operation_17_03.pdf


Reseeding pastures and hayfields: http://ag.umass.edu/sites/ag.umass.edu/files/fact-sheets/pdf/reseeding_pasture_and_hayfield_17_01_0.pdf


Fojtik, A. and C. A. Williams. 2017. A Guide to More Productive and Nutrient Dense Horse Pastures. Rutgers Cooperative Extension. FS1271. New Brunswick, NJ. pp. 1-4. 


 


Popular press articles

 

Weinert, J. and C. A. Williams. 2017.  “Managing horse pastures over the winter”. In: New Jersey Farmer. October 1. p. 6 & 13.

 

Williams, C. A. 2017.  “Analyzing sugar content in pasture grasses”. In: New Jersey Farmer. September 1. p. 6 & 15.

 

Williams, C. A. 2017.  “Forage testing your horse pastures can be beneficial”. In: New Jersey Farmer. July 1. p. 6 & 8.

 

Williams, C. A. 2017.  “What to do about your horse’s ‘Drooling’ problem?”. In: New Jersey Farmer. May 1. p. 6 & 11.

 

Williams, C. A. 2017.  “Are Creeks Reliable, Safe Water Sources for Horses?”. In: New Jersey Farmer. April 1. p. 6 & 13.

 

Williams, C. A. 2017.  “Early Spring Toxic Plants in Horse Pastures”. In: New Jersey Farmer. February 1. p. 6 & 16.


Westendorf, M. L. Animal Science Update:  Animal waste budgeting input and output.  New Jersey Farmer. June 15, 2017.  Page 6.


Westendorf, M. L. Animal Science Update: Learn the basics of pasture management.  New Jersey Farmer. May 15, 2017.  Page 6.


Westendorf, M. L.  Animal Science Update: Climate change and ruminants..  New Jersey Farmer.  April 15, 2017.  Page 6.


Westendorf, M. L. Animal Science Update: Learn the basics of feed, forage testing.  New Jersey Farmer. February 15, 2017.  Page 6.


Westendorf, M. L. Animal Science Update: Water most abundant, least understood of nutrients.  New Jersey Farmer. December 15, 2016.  Page 6.



 

11/05/2018

 


Journal Articles



  1. Bowman, M. A., J. L. Moore, and P. D. Siciliano. 2017. Effect of restricting time allowed for grazing on fecal microbial fermentation parameters. J. Equine Vet. Sci. 52:82. doi:10.1016/j.jevs.2017.03.110.

  2. DeBoer, M. L., M. R. Hathaway, K. J. Kuhle, P. S. D. Weber, A. S. Reiter, C. C. Sheaffer, M. S. Wells, and K. L. Martinson. 2018. Glucose and Insulin Response of Horses Grazing Alfalfa, Perennial Cool-Season Grass, and Teff Across Seasons. J. Equine Vet. Sci. 68:33–38. doi:10.1016/j.jevs.2018.04.008.

  3. DeBoer, M. L., C. C. Sheaffer, A. M. Grev, D. N. Catalano, M. S. Wells, M. R. Hathaway, and K. L. Martinson. 2017. Yield, Nutritive Value, and Preference of Annual Warm-Season Grasses Grazed by Horses. Agron. J. 109:2136. doi:10.2134/agronj2017.02.0099.

  4. Grev, A. M., C. C. Sheaffer, M. L. DeBoer, D. N. Catalano, and K. L. Martinson. 2017. Preference, Yield, and Forage Nutritive Value of Annual Grasses under Horse Grazing. Agron. J. 109:1561. doi:10.2134/agronj2016.11.0684.

  5. Kenny, L. B. 2016. The effects of rotational and continuous grazing on horses, pasture condition, and soil properties. Rutgers University - Graduate School - New Brunswick. Available from: https://rucore.libraries.rutgers.edu/rutgers-lib/49246/

  6. Bott, R. C., E. A. Greene, K. Koch, K. L. Martinson, P. D. Siciliano, C. A. Williams,  N. L. Trottier, A. Burk, and A. Swinker. 2013. Production and environmental implications of equine grazing. J. Equine Vet. Sci. 33:1031–1043.  doi: 10.1016/j.jevs.2013.05.004

  7. Bott, R. C., E. A. Greene, N. L. Trottier, C. A. Williams, M. L. Westendorf, A. M. Swinker, S. L. Mastellar, and K. L. Martinson. 2016. Environmental implications of nitrogen output on horse operations: A review. J. Equine Vet. Sci. 45:98-106.  doi: 10.1016/j.jevs.2015.08.019

  8. DeBoer, M.L., M.R. Hathaway, K.J. Kuhle, P.S.D. Weber, A.S. Reiter, C.C. Sheaffer, M.S. Wells and K.L. Martinson.  2018. Glucose and insulin response of horses grazing alfalfa, perennial cool-season grass, and teff across seasons.  J. Equine Vet. Sci. 68: 33-38.

  9. DeBoer, M.L., C.C. Sheaffer, A.M Grev, D.N Catalano, M.S. Wells, M.R. Hathaway, and K.L. Martinson.  2017. Yield, nutritive value and preference of annul warm-season grasses grazed by horses. Agronomy J.  109: 2,136-2,148.

  10. Grev, A.M., C.C. Sheaffer, M.L. DeBoer, D.N. Catalano, and K.L. Martinson.  2017. Preference, yield, and forage nutritive value of annual grasses under horse grazing.  Agronomy J. 109: 1,561-1,572.

  11. Kenny, L. B., D. Ward, M. Robson, and C. A. Williams. 2018.  Technical note: Comparing four techniques for estimating desired grass species composition in horse pastures.  J. Anim. Sci. 96:2219-2225. doi: 10.1093/jas/sky111

  12. Martinson, K.L., P.D. Siciliano, C.C. Sheaffer, B.J. McIntosh, A.M. Swinker, and  C.A. Williams. 2017. A review of equine grazing research methodologies. J. Equine Vet. Sci.  51: 92-104.

  13. Martinson, K.L., M.S. Wells, and C.C. Sheaffer.  2016. Horse preference, forage yield and species persistence of twelve perennial cool-season grass mixtures under horse grazing.  J. of Equine Vet. Sci. 36: 19-25.

  14. Nazarenko, Y., M. L. Westendorf, C. A. Williams, and G. Mainelis.  2018. The effects of bedding type in stalls and activity of horses on stall air quality. J. Equine Vet. Sci. 67:91-98. doi: 10.1016/j.jevs.2018.03.014

  15. Splan, R., M. Spindler, K. Anderson, C. Skelly, M. Westendorf, C. Williams, L. Kenny, and R.C. Bott-Knutson.  2017. Opportunities to Address the Transdisciplinary and Global Challenges of Climate Change in An Equine Science Context.  NACTA Journal. March 2018, Vol 62(1).

  16. Trottier, N. L., R. C. Bott, A. Woodward, E. A. Greene, C. A. Williams, M. L. Westendorf, A. M. Swinker, S. L. Mastellar, and K. L. Martinson. 2016. Gastrointestinal nitrogen metabolism of equids and impact on protein requirement. J. Equine Vet. Sci. 45:78-86.  doi: 10.1016/j.jevs.2016.06.002

  17. Weinert, J. R. and C. A. Williams. 2018. Recovery of pasture forage production following winter rest in continuous and rotational horse grazing systems. J. Equine Vet. Sci. 70:32-37.  doi.org/10.1016/j.jevs.2018.06.017


Book Chapters



  1. Kenny, L. B., A. O. Burk, and C. A. Williams.  2018. Managing Equine Grazing for Pasture Productivity. In: Equine Pasture Management, edited by P. Sharpe. Elsevier Science, St. Louis, MO (in press). pp. 1-17. doi: 10.1016/B978-0-12-812919-7.00009-3

  2. Kenny, L. B., M. Westendorf, and C. A. Williams.  2018. Managing Manure, Erosion, and Water Quality in and Around Horse Pastures. In: Equine Pasture Management, edited by P. Sharpe. Elsevier Science, St. Louis, MO (in press). pp. 1-21. doi: 10.1016/B978-0-12-812919-7.00014-7


Proceedings



  1. Catalano, D. N., C. C. Sheaffer, A. M. Grev, N. J. Ehlke, E. Mousel, and K. L. Martinson. 2018.  Yield, Preferencec, and Forage Nutritive Value of Winterhardy Perennial Ryegrass under Animal Grazing. In proceedings: 2018 University of Minnesota Animal Science Showcase. Pg. 14. St. Paul, MN.

  2. Catalano, D. N., C. C. Sheaffer, A. M. Grev, N. J. Ehlke, E. Mousel, and K. L. Martinson. 2018. Yield, Preference, and Forage Nutritive Value of Winterhardy Perennial Ryegrass under Animal Grazing. In Proceedings: 2018 American Forage and Grassland Council Annual Conference. Louisville, KY.

  3. Catalano, D.N., C.C. Sheaffer, M.S. Wells, A.M. Grev, M.L. DeBoer, and K.L. Martinson. 2016. Forage nutritive value, yield, and preference of legumes under horse grazing in the establishment year. Proc.,University of Minnesota Excellence in Equine Research Showcase, St. Paul, MN. Pg. 11.

  4. DeBoer, M.L., M.R. Hathaway, K.J. Kuhle, P.S.D. Weber, C.C. Sheaffer, M.S. Wells and K.L. Martinson. 2017.  Forage quality and blood metabolites of adult horses grazing alfalfa, teff, and cool-season perennial grasses.  In Proceedings: 78th Minnesota Nutrition Conference.  Pg. 260. Mankato, MN.

  5. Catalano, D.N., C.C. Sheaffer, M.S. Wells, A.M. Grev, M.L. DeBoer, and K.L. Martinson. 2016. Forage nutritive value, yield, and preference of legumes of horse grazing in the establishment year. Proc., 2016 North American Alfalfa Improvement Conf., Madison, WI. Available online at: https://www.naaic.org/Meetings/National/2016meeting/Devan%20Catalano%20Abstract.pdf

  6. DeBoer, M.L., C.C. Sheaffer, M.S. Wells, M.R. Hathaway, A.M. Grev, D.N. Catalano, and K.L. Martinson. 2017. Nitrate-nitrogen content of annual warm-season forages grazed by horses. In Proceedings: 2017 American Forage and Grassland Council Annual Meeting. Roanoke, VA. Available online at http://www.afgc.org/proceedings/2017/DeBoer_Schultz_Michelle%20AFGCInterpretive.pdf.

  7. Grev, A.M., C.C. Sheaffer, D.N. Catalano, M.L. Schultz, and K.L. Martinson. 2016. Yield, preference, and forage nutritive value of small grains under horse grazing. Proc., University of Minnesota Excellence in Equine Research Showcase,  St. Paul, MN. Pg. 13.

  8. Reiter, A.S, M.L. DeBoer, M.R. Hathaway, K.J. Kuhle, C.C. Sheaffer, M.S. Wells, K.L. Martinson. 2018. Plasma Amino Acid Concentrations of Horses Grazing Alfalfa, Cool-season Perennial grasses, and Teff. In Proceedings: American Forage and Grassland Council 2018 Annual Meeting. Louisville, KY.

  9. Schultz, M.L., C.C. Sheaffer, D.N. Catalano, A.M. Grev, and K.L. Martinson. 2016. Forage nutritive value, yield, and preference of warm season grasses grazed by horse in the upper Midwest. IProc., University of Minnesota Excellence in Equine Research Showcase, St. Paul, MN. Pg. 10.

  10. Williams, C. A. 2017. Nutrient cycling in horse pastures. Waste to Worth Conf. Proc. Raleigh, NC. Online: http://articles.extension.org/pages/74361/nutrient-cycling-in-horse-pastures.


Abstracts



  1. DeBoer, M.L., K.L. Martinson, K.J. Kuhle, C.C. Sheaffer, M.S. Wells, and M.R. Hathway. 2017.  Plasma amino acid concentrations of horses grazing alfalfa, cool-season perennial grasses, and teff.  J. Equine Vet. Sci. 52: 83.

  2. DeBoer, M.L., M.R. Hathaway, K.J. Kuhle, P.S.D. Weber, C.C. Sheaffer, M.S. Wells, R.S. Mottet, and K.L. Martinson. 2017.  Glucose response of horses grazing alfalfa, cool-season perennial grasses and teff across seasons. J. Equine Vet. Sci. 52: 79.

  3. Catalano, D.N., C.C. Sheaffer, A.M. Grev, N.J. Ehlke, and K.L. Martinson. 2017. Yield, preference, and forage nutritive value of winter hardy perennial ryegrass under equine grazing. J. Equine Vet. Sci. 52: 102.

  4. Le, A., L. B. Kenny, A. O. Burk, and C. A. Williams. 2016.  Impact of grazing system on forage carbohydrates and horse metabolism.  Mid-Atlantic Nutr. Conf. Proc. 14 (https://ansc.umd.edu/extension/mid-atlantic-nutrition-conference/past-proceedings).

  5. Powlowski, C., J. Weinert, and C. A. Williams. 2018.  Impact of grazing system on forage carbohydrates and horse metabolism.  Mid-Atlantic Nutr. Conf. Proc. 16 (https://ansc.umd.edu/extension/mid-atlantic-nutrition-conference/past-proceedings).

  6. Reiter, A.S., M.L. DeBoer, K.J. Kuhle, C.C. Sheaffer, M.S. Wells, M.R. Hathaway, and K.L. Martinson. 2017.  Variation in nitrate concentration of alfalfa, perennial cool-seasonal grasses, and teff grazed by horses in the upper Midwest. J. Equine Vet. Sci. 52: 45.

  7. Rizzo, E., A. O. Burk, and C. A. Williams.  2017. The effects of continuous vs. rotational grazing on forage soluble carbohydrate content and blood glucose and insulin concentration in horses.  Mid-Atlantic Nutr. Conf. Proc. 15 (https://ansc.umd.edu/extension/mid-atlantic-nutrition-conference/past-proceedings).

  8. Williams, C. A., L. B. Kenny, and A. O. Burk. 2017. Effects of grazing system and season on glucose and insulin dynamics of the grazing horse.  J. Equine Vet. Sci. 52:87. Abstract #108.


Extension Publications



  1. DeBoer, M., C. Sheaffer, and K. Martinson.  2017. Grazing horses on teff, alfalfa, and perennial ryegrass.  University of Minnesota Extension Factsheet.   

  2. Fojtik, A. and C. A. Williams. 2017. A Guide to More Productive and Nutrient Dense Horse Pastures. Rutgers Cooperative Extension. FS1271. New Brunswick, NJ. pp. 1-4.

  3. Grev, A., C. Sheaffer, and K. Martinson.  2017. Preference, yield, and forage nutritive value of annual grasses under horse grazing.  University of Minnesota Extension Factsheet.

  4. Martinson, K., C. Sheaffer, and M.S. Wells.  2016. Grass mixtures for Midwest horse pastures.  University of Minnesota Extension Factsheet.


YouTube Videos



  1. “When to Initiate Horse Grazing” 3,902 views to date (posted December 12, 2013).

  2. “Nutrient Cycling in Horse Pastures” Conference presentation at Waste to Worth Conference 2017, Raleigh, NC.  Posted May 5, 2017. (https://www.youtube.com/watch?v=i6uLaTe0s8M).


Online Certification Courses



  1. Pasture Establishment and Management.  2017 enrollment was 31.

  2. Composting Course. 2014-2018. Available online as a self-certification program for farmers in New Jersey and throughout the US for compost managers.  Rutgers Cooperative Extension. http://campus.extension.org/course/view.php?id=897.   

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