Alexander Hristov

Profile Photo
Image
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.

Research Keywords

 These keywords and phrases come from the publications and other research output of this person. See other researchers related to these topics by clicking on any keyword.

Recent Publications

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

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

Histidine dose-response effects on lactational performance and plasma amino acid concentrations in lactating dairy cows: 2. Metabolizable protein-deficient diet

Räisänen, S. E., Lage, C. F. A., Fetter, M. E., Melgar, A., Pelaez, A. M., Stefenoni, H. A., Wasson, D. E., Cueva, S. F., Zhu, X., Miura, M. & Hristov, A. N., Sep 2021, In: Journal of dairy science. 104, 9, p. 9917-9930 14 p.

Research output: Contribution to journalArticlepeer-review

Histidine dose-response effects on lactational performance and plasma amino acid concentrations in lactating dairy cows: 1. Metabolizable protein-adequate diet

Räisänen, S. E., Lage, C. F. A., Oh, J., Melgar, A., Nedelkov, K., Chen, X., Miura, M. & Hristov, A. N., Sep 2021, In: Journal of dairy science. 104, 9, p. 9902-9916 15 p.

Research output: Contribution to journalArticlepeer-review

Effects of the macroalga Asparagopsis taxiformis and oregano leaves on methane emission, rumen fermentation, and lactational performance of dairy cows

Stefenoni, H. A., Räisänen, S. E., Cueva, S. F., Wasson, D. E., Lage, C. F. A., Melgar, A., Fetter, M. E., Smith, P., Hennessy, M., Vecchiarelli, B., Bender, J., Pitta, D., Cantrell, C. L., Yarish, C. & Hristov, A. N., Apr 2021, In: Journal of dairy science. 104, 4, p. 4157-4173 17 p.

Research output: Contribution to journalArticlepeer-review

Effects of feeding rumen-protected Capsicum oleoresin on growth performance, health status, and total tract digestibility of growing beef cattle

Westphalen, M. F., Carvalho, P. H. V., Oh, J., Hristov, A. N., Staniar, W. B. & Felix, T. L., Jan 2021, In: Animal Feed Science and Technology. 271, 114778.

Research output: Contribution to journalArticlepeer-review