Progress 07/01/07 to 06/30/12
Outputs
OUTPUTS: Diverse research projects on applied nutrition of dairy cows were completed and results published in scientific journals and conference proceedings. PARTICIPANTS: Carla Fish, MS degree project. Matt Akins, Ph.D. degree project. Luiz Ferraretto, MS degree project. DSM Nutrition Products Ltd., Collaborator. Zinpro Corp., Collaborator. TARGET AUDIENCES: Nutrition consultants, feed industry, veterinarians, and dairy producers. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.
Impacts
Findings provided information to allow nutrition consultants and feed industry to fine tune dairy cattle feeding programs for improved efficiency and profitability for dairy producers.
Publications
- Bork, N.R., J.W. Schroeder, G.P. Lardy, K.A. Vonnahme, M.L. Bauer, R.D. Shaver and P.M. Fricke. 2010. Effect of Feeding Rolled Flaxseed on Milk Fatty Acid Profiles and Reproductive Performance of Dairy Cows. J. Animal Sci. 88:3739-3748.
- K. S. Hackbart, R. M. Ferreira, A. A. Dietsche, M. T. Socha, R. D. Shaver, M. C. Wiltbank, and P. M. Fricke. 2010. Effect of dietary organic zinc, manganese, copper, and cobalt supplementation on milk production, follicular growth, embryo quality, and tissue mineral concentrations in dairy cows. J. Anim. Sci. 88:3856-3870.
- Gencoglu, H., R. D. Shaver, W. Steinberg, J. Ensink, L. F. Ferraretto, S. J. Bertics, J. C. Lopes, and M. S. Akins. 2010. Effect of feeding a reduced-starch diet with or without amylase addition on lactation performance by dairy cows. J. Dairy Sci. 93:723-732.
- Fish, C.M., R.D. Shaver, J.G. Lauer, D.C. Weakley, and T.E. Piper. 2010. Whole-plant corn quality parameters for unensiled and ensiled samples: Effects of hybrid and length of fermentation. J. Dairy Sci. 93(E-Suppl. 1): (Abstr.).
- Akins, M. S., S. J. Bertics, M. T. Socha, R. D. Shaver. 2010. Effects of cobalt supplementation and vitamin B12 injections on energy metabolism of dairy cows. J. Dairy Sci. 93(E-Suppl. 1): (Abstr.).
- Akins, M. S., S. J. Bertics, M. T. Socha, R. D. Shaver. 2010. Effects of dietary cobalt supplementation and vitamin B12 injection on lactation performance by dairy cows. J. Dairy Sci. 93(E-Suppl. 1): (Abstr.).
- Gencoglu H., L. Ferraretto, M. Akins, and R. Shaver. 2010. Lactation response to a ruminally-protected B-vitamin product (Vicomb P+). Midwest ADSA/ASAS Annual Mtg. Abstr, Des Moines, IA.
- Shaver*, R.D. 2010. Distillers grains for lactating dairy cows: Constraints and opportunities. U.S. Grains Council Export Exchange. Chicago, IL.
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Progress 01/01/09 to 12/31/09
Outputs
OUTPUTS: Projects were conducted to evaluate the following: effect of slow-release urea product on lactation performance in commercial dairy herds; effect of distillers dried grains on lactation performance in commercial grass-based dairy herds; effects of organic trace minerals on dairy cattle reproduction. PARTICIPANTS: Francisco Inostroza and Katie Hackbart worked under this project in partial fulfillment of their master's degrees. Commercial dairy producers collaborated on the urea and distillers grains trials. TARGET AUDIENCES: Nutrition consultants, feed industry, veterinarians, and dairy producers. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.
Impacts
Results provided dairy producers and their nutrition consultants with field data to evaluate the feasibility for adopting these feeding practices.
Publications
- Inostroza, J. F., R. D. Shaver, V. E. Cabrera, and J. M. Tricarico. 2010. Effect of diets containing a controlled-release urea product on milk yield, composition and component yields in commercial Wisconsin dairy herds and economic implications. The Professional Animal Scientist. In press.
- Inostroza, J.F., V.E. Cabrera, R.D. Shaver, and J.M. Tricarico. 2009. Evaluation of the economic impact of Optigen use in commercial dairy herd diets with varying feed and milk prices. J. Dairy Sci. 92(E-Suppl. 1): 43(Abstr.).
- Inostroza, J.F., R.D. Shaver, V.E. Cabrera, and J.M. Tricarico. 2009. Effect of Optigen on milk yield, composition, and component yields in commercial Wisconsin dairy herds.. J. Dairy Sci. 92(E-Suppl. 1): 290(Abstr.).
- Hackbart, K.S., R.M. Ferreira, A.A. Dietsche, M.T. Socha, R.D. Shaver, M.C. Wiltbank, and P.M. Fricke. 2009. Effect of organic Zinc, Manganese, Copper, and Cobalt on follicular growth, embryo quality, and tissue mineral concentrations in lactating dairy cows. SSR (Soc. for the Study of Repro.) Annual Mtg. Abstr. Pittsburgh, PA.
- Shaver R., R. Ehrenfeld, M. Olivares, J. Cuellar, and F. Inostroza. 2010. Effect of feeding distillers dried grains to lactating cows on farms in the southern dairy region of Chile. Chilean J. Agric. Res. In press.
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Progress 01/01/08 to 12/31/08
Outputs
OUTPUTS: A project was conducted to evaluate the effect of a dietary essential oils supplement on performance of early lactation dairy cows. Results have been presented at several national nutrition conferences through their proceedings papers. PARTICIPANTS: Nothing significant to report during this reporting period. TARGET AUDIENCES: Target audience includes nutrition advisors, feed companies and veterinarians. PROJECT MODIFICATIONS: Nothing significant to report during this reporting period.
Impacts
Results show a potential natural feed additive alternative to antibiotic products for modifying rumen microbial fermentation.
Publications
- Tassoul, M. D., and R. D. Shaver. 2008. Effect of an essential oil blend on performance of periparturient and early lactation dairy cows. J. Dairy Sci. 91(E-Suppl. 1): 265(Abstr.).
- Tassoul, M. D., J. P. Goeser, R. D. Shaver and D. K. Combs. 2008. Effect of essential oils on in vitro NDF digestion. J. Dairy Sci. 91(E-Suppl. 1): 224(Abstr.).
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