Andrew LaPierre

Andrew LaPierre is a post-doctoral associate in the Department of Animal Sciences.  He holds a bachelor’s degree from Cornell University, Master’s degree from the University of Illinois at Urbana-Champaign, and PhD from Cornell University.  In his postdoctoral position, Andrew takes an active role in the biological and structural development of the Cornell Net Carbohydrate and Protein System (CNCPS) model, with particular emphasis on CNCPS v.7 and its deployment from research to field setting.  Current efforts towards CNCPS development include improvements in the estimation of nitrogen and amino acid requirements, microbial requirements for improved carbohydrate degradation, and providing dynamic model outputs to aid in on-farm decision making.

Conference Presentations

P. A. LaPierre, S.Y. Morrison, K. Perryman, T. Parr, and J. K. Drackley.. Effects of Hydroxy vs. Sulfate Forms of Trace Minerals in Milk Replacer or Starter on Dairy Calves through Weaning. Poster presented at the annual meeting for the American Dairy Science Association. Orlando, FL, June, 2015.

P.A. LaPierre, M. M. McCarthy, D. A. Ross, M. E. Van Amburgh. Effects of precision essential amino acid formulation on a metabolizable energy basis for lactating dairy cows. Poster presented at the annual meeting for the American Dairy Science Association. Cincinnati, OH, June, 2019.

P.A. LaPierre et al. "Effects of Precision Essential Amino Acid Formulation on a Metabolizable Energy Basis for Lactating Dairy Cows." Cornell Nutrition Conference. Syracuse, NY, October, 2019.

P.A. LaPierre. et al. "Feed Chemistry and Related Factors Needed to Improve AA Formulation in Lactating Cattle." Ruminant Essentialities by Kemin. Athens, Greece, October, 2019.

P.A. LaPierre et al. "CNCPS v7 Development, Capabilities, and Application." Ruminant Essentialities by Kemin, Athens, Greece, October, 2019.

P.A. LaPierre, et al. "Impact of energy on amino acid requirements of lactating dairy cows." Cornell Nutrition Conference. Syracuse, NY, October 2020.  Conference held virtually.

P.A. LaPierre, et al. "Improvements in Nitrogen and Amino Acid Efficiency in Dairy Cattle using Precision Amino Acid Balancing Relative to Metabolizable Energy." University of Delaware; Graduate student speakers series, September 2020

P.A. LaPierre, “Precision formulation techniques in dairy cattle rations: Meeting requirements and improving nitrogen efficiency through amino acid balancing”, Progressive Dairy Solutions meeting, Oakwood, CA, 2022.

P.A. LaPierre and M.E. Van Amburgh, “Quantifying the Requirements for BCVFAs in the CNCPS” Four-State Dairy Nutrition & Management Conference. Dubuque, IA, June 2022.

Publications

Marumo, J. L., LaPierre, P. A., & Van Amburgh, M. E. (2023). Enteric Methane Emissions Prediction in Dairy Cattle and Effects of Monensin on Methane Emissions: A Meta-Analysis. Animals, 13(8), 1392.

Higgs, R. J., Chase, L. E., Schwab, C. G., Sloan, B., Luchini, D., LaPierre, P. A., & Van Amburgh, M. E. (2023). Balancing dairy cattle diets for rumen nitrogen and methionine or all essential amino acids relative to metabolizable energy. Journal of Dairy Science.

Ortega, A. F., A. Zanotti, R. Coombe, N. Fox, P. A. LaPierre, J. Marumo, C. Coon, D. M. Barbano, and M. E. Van Amburgh. "Abomasal Infusions of Essential and Non-Essential Amino Acids to Evaluate Productive Efficiencies, and Energy and Amino Acid Utilization in Lactating Dairy Cattle." (2022).

Schalich, K. M., P. A. LaPierre, and V. Selvaraj. "Geospatial Fluid Milk Processing Preferences: Is Consumer Taste Perception the Key Factor?." Dairy 3, no. 2 (2022): 413-421.

Dineen, M., B. McCarthy, P. Dillon, P. A. LaPierre, S. Fessenden, C. Matthews, N. Galvin, and M. E. Van Amburgh. "Rumen metabolism, omasal flow of nutrients, and microbial dynamics in lactating dairy cows fed fresh perennial ryegrass (Lolium perenne L.) not supplemented or supplemented with rolled barley grain." Journal of dairy science 103, no. 12 (2020): 11332-11348.

Dineen, M., McCarthy, B., Dillion, P., Fessenden, S., LaPierre, P. A., Van Amburgh, M.E. "Evaluation and development of the Cornell Net Carbohydrate and Protein System v. 7 using a unique pasture-based data set." Cornell Nutrition Conference Proceedings (2019).

Morrison, S. Y., LaPierre, P. A., Brost, K. N., & Drackley, J. K. (2019). Intake and growth in transported Holstein calves classified as diarrheic or healthy within the first 21 days after arrival in a retrospective observational study. Journal of dairy science, 102(12), 10997-11008.

Van Amburgh, M. E., Dineen, M., LaPierre, P. A., Lawrence, J., Kerwin, A., Overton T. R. "Determination of first limiting physical factors in corn silage hybrids: modeling multiple pools of ruminal aNDFom digestion." Cornell Nutrition Conference Proceedings. (2018).

Nicholson, C., Simões, A., LaPierre, P. A., & Van Amburgh, M. (2018). Modeling Complex Problems with System Dynamics: Applications in Animal Agriculture. Journal of Animal Science, 96(suppl_3), 83-83.

Van Amburgh, M. E., Ortega, A. F., Fessenden, S. W., Ross, D. A., Lapierre, P. A. “The amino acid content of rumen microbes, feed, milk and tissue after multiple hydrolysis times and implications for the CNCPS.” Cornell Nutrition Conference Proceedings (2017).

P.A. LaPierre and M.E. Van Amburgh, “CNCPS v.7 nutrient supply and requirement transactions” Cornell Nutrition Conference. Syracuse, NY, October 2022.

P.A. LaPierre, “Ruminal degradation of nutrients: A modeling approach” Penn State Nutrition Conference, Hershey, PA, November 2022.

P.A. LaPierre, “Model or it’s inputs? Sensitivity in formulation when face with uncertain inputs” Penn State Nutrition Conference, Hershey, PA, November 2022.

P.A. LaPierre, “How user inputs impact CNCPS model outcomes: Diet implications for the nutritionist” Southwest Nutrition Conference, Phoenix, AZ, February 2023.