Alexander Hristov

Affiliate Researcher
Titles and Affiliations
Professor, Animal Science

Research Summary

Research interests include nutrient management, particularly reducing nutrient excretions from dairy operations; whole-farm nutrient balances; estimating ammonia losses from manure; and use of stable isotopes to trace sources of nutrient pollution.

In the News

Research Keywords

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Recent Publications

Lactational performance, rumen fermentation, and enteric methane emission of dairy cows fed an amylase-enabled corn silage

Cueva, S. F., Stefenoni, H., Melgar, A., Räisänen, S. E., Lage, C. F. A., Wasson, D. E., Fetter, M. E., Pelaez, A. M., Roth, G. W. & Hristov, A. N., Sep 2021, In: Journal of dairy science. 104, 9, p. 9827-9841 15 p.

Research output: Contribution to journalArticlepeer-review

Current state of enteric methane and the carbon footprint of beef and dairy cattle in the United States

Dillon, J. A., Stackhouse-Lawson, K. R., Thoma, G. J., Gunter, S. A., Rotz, C. A., Kebreab, E., Riley, D. G., Tedeschi, L. O., Villalba, J., Mitloehner, F., Hristov, A. N., Archibeque, S. L., Ritten, J. P. & Mueller, N. D., Jul 1 2021, In: Animal Frontiers. 11, 4, p. 57-68 12 p.

Research output: Contribution to journalArticlepeer-review

Short communication: Postpartum plasma amino acid concentration in primi- and multiparous Holstein cows

Fetter, M. E., Cunningham, D. M., Gambonini, F., Räisänen, S. E., Ott, T. L. & Hristov, A. N., Nov 2021, In: Animal Feed Science and Technology. 281, 115101.

Research output: Contribution to journalArticlepeer-review

Using Structural Equation Modeling to Understand Interactions Between Bacterial and Archaeal Populations and Volatile Fatty Acid Proportions in the Rumen

Kaplan-Shabtai, V., Indugu, N., Hennessy, M. L., Vecchiarelli, B., Bender, J. S., Stefanovski, D., De Assis Lage, C. F., Räisänen, S. E., Melgar, A., Nedelkov, K., Fetter, M. E., Fernandez, A., Spitzer, A., Hristov, A. N. & Pitta, D. W., Jun 9 2021, In: Frontiers in Microbiology. 12, 611951.

Research output: Contribution to journalArticlepeer-review

Lactational performance, enteric gas emissions, and plasma amino acid profile of dairy cows fed diets with soybean or canola meals included on an equal protein basis

Lage, C. F. A., Räisänen, S. E., Stefenoni, H., Melgar, A., Chen, X., Oh, J., Fetter, M. E., Kniffen, D. M., Fabin, R. A. & Hristov, A. N., Mar 2021, In: Journal of dairy science. 104, 3, p. 3052-3066 15 p.

Research output: Contribution to journalArticlepeer-review

Enteric methane emission, milk production, and composition of dairy cows fed 3-nitrooxypropanol

Melgar, A., Lage, C. F. A., Nedelkov, K., Räisänen, S. E., Stefenoni, H., Fetter, M. E., Chen, X., Oh, J., Duval, S., Kindermann, M., Walker, N. D. & Hristov, A. N., Jan 2021, In: Journal of dairy science. 104, 1, p. 357-366 10 p.

Research output: Contribution to journalArticlepeer-review

Acting rapidly to deploy readily available methane mitigation measures by sector can immediately slow global warming

Ocko, I. B., Sun, T., Shindell, D., Oppenheimer, M., Hristov, A. N., Pacala, S. W., Mauzerall, D. L., Xu, Y. & Hamburg, S. P., May 2021, In: Environmental Research Letters. 16, 5, 054042.

Research output: Contribution to journalArticlepeer-review

Dietary supplementation with rumen-protected capsicum during the transition period improves the metabolic status of dairy cows

Oh, J., Harper, M. T., Melgar, A., Räisänen, S., Chen, X., Nedelkov, K., Fetter, M., Ott, T., Wall, E. H. & Hristov, A. N., Nov 2021, In: Journal of dairy science. 104, 11, p. 11609-11620 12 p.

Research output: Contribution to journalArticlepeer-review

Temporal changes in total and metabolically active ruminal methanogens in dairy cows supplemented with 3-nitrooxypropanol

Pitta, D. W., Melgar, A., Hristov, A. N., Indugu, N., Narayan, K. S., Pappalardo, C., Hennessy, M. L., Vecchiarelli, B., Kaplan-Shabtai, V., Kindermann, M. & Walker, N., Aug 2021, In: Journal of dairy science. 104, 8, p. 8721-8735 15 p.

Research output: Contribution to journalArticlepeer-review

Corrigendum to “Bioavailability of rumen-protected methionine, lysine and histidine assessed by fecal amino acid excretion” [Anim. Feed Sci. Technol. 268 (2020) 114595] (Animal Feed Science and Technology (2020) 268, (S0377840120304995), (10.1016/j.anifeedsci.2020.114595))

Räisänen, S. E., Martins, C. M. M. R., Nedelkov, K., Oh, J., Harper, M. T., Melgar, A., Chen, X., Parys, C., Patton, R. A., Miura, M. & Hristov, A. N., Apr 2021, In: Animal Feed Science and Technology. 274, 114747.

Research output: Contribution to journalComment/debatepeer-review