Ronald Trotta

Scholars@UK

Association of serotonin and ergot alkaloids on tissue partitioning and contractile response of bovine blood vessels

Valente, E. E. L., Harmon, D., May, J., Ji, H., Trotta, R. J. & Klotz, J. L., Jan 2026, In: Current Research in Toxicology. 10, 100272.

Research output: Contribution to journal › Article › peer-review

Endo-1,3-β-D-glucanase activity influences in vitro ruminal fermentation of diets varying in forage:concentrate

Seeforth, D. P. & Trotta, R. J., 2025, In: Journal of Animal Science. 103, skaf244.

Research output: Contribution to journal › Article › peer-review

Timing of maternal nutrient restriction during mid-to late-gestation influences net umbilical uptake of glucose and amino acids in adolescent sheep

Trotta, R. J., Vasquez-Hidalgo, M. A., Smith, B. I., Reed, S. A., Govoni, K. E., Vonnahme, K. A. & Swanson, K. C., 2023, In: Journal of Animal Science. 101, skad383.

Research output: Contribution to journal › Article › peer-review

Effects of dietary supplement sources on the rate and extent of in vitro Ruminal degradation of alfalfa-based diets for cattle

Trotta, R. J. & Swanson, K. C., 2020, In: Canadian Journal of Animal Science. 100, 2, p. 244-252 9 p.

Research output: Contribution to journal › Article › peer-review

Prenatal and postnatal nutrition influence pancreatic and intestinal carbohydrase activities of ruminants

Trotta, R. J. & Swanson, K. C., Jan 2021, In: Animals. 11, 1, p. 1-12 12 p., 171.

Research output: Contribution to journal › Review article › peer-review

Effects of nutrient restriction and melatonin supplementation from mid-to-late gestation on maternal and fetal small intestinal carbohydrase activities in sheep

Trotta, R. J., Lemley, C. O., Vonnahme, K. A. & Swanson, K. C., Jan 2021, In: Domestic Animal Endocrinology. 74, 106555.

Research output: Contribution to journal › Article › peer-review

Influence of maternal nutrient restriction and rumen-protected arginine supplementation on post-ruminal digestive enzyme activity of lamb offspring

Trotta, R. J., Keomanivong, F. E., Peine, J. L., Caton, J. S. & Swanson, K. C., Nov 2020, In: Livestock Science. 241, 104246.

Research output: Contribution to journal › Article › peer-review

Effects of ractopamine hydrochloride supplementation on feeding behavior, growth performance, and carcass characteristics of finishing steers

Trotta, R. J., Maddock Carlin, K. R. & Swanson, K. C., Jul 1 2019, In: Translational Animal Science. 3, 4, p. 1143-1152 10 p.

Research output: Contribution to journal › Article › peer-review

Regulation of postruminal carbohydrase activities by dietary fructose in neonatal calves

Trotta, R. J. & Swanson, K. C., 2019, In: EAAP Scientific Series. 138, p. 239-240 2 p.

Research output: Contribution to journal › Article › peer-review

Duodenal Infusions of Starch with Casein or Glutamic Acid Influence Pancreatic and Small Intestinal Carbohydrase Activities in Cattle

Trotta, R. J., Sitorski, L. G., Acharya, S., Brake, D. W. & Swanson, K. C., Apr 1 2020, In: Journal of Nutrition. 150, 4, p. 784-791 8 p.

Research output: Contribution to journal › Article › peer-review

Disrupted one-carbon metabolism in heifers negatively affects their health and physiology

Crouse, M. S., Trotta, R. J., Freetly, H. C., Lindholm-Perry, A. K., Neville, B. W., Oliver, W. T., Hammer, C. J., Syring, J. G., King, L. E., Neville, T. L., Reynolds, L. P., Dahlen, C. R., Caton, J. S., Ward, A. K. & Cushman, R. A., 2024, In: Journal of Animal Science. 102, skae144.

Research output: Contribution to journal › Article › peer-review

Influence of ractopamine hydrochloride supplementation on pancreatic digestive enzyme activity in finishing steers

Trotta, R. J., Maddock-Carlin, K. R. & Swanson, K. C., 2021, In: Canadian Journal of Animal Science. 101, 1, p. 191-195 5 p.

Research output: Contribution to journal › Article › peer-review

Effects of Nutrient Restriction during Midgestation to Late Gestation on Maternal and Fetal Postruminal Carbohydrase Activities in Sheep

Trotta, R. J., Vasquez-Hidalgo, M. A., Vonnahme, K. A. & Swanson, K. C., Jan 2 2020, In: Journal of Animal Science. 98, 1, skz393.

Research output: Contribution to journal › Article › peer-review

Influence of dietary fructose supplementation on visceral organ mass, carbohydrase activity, and mRNA expression of genes involved in small intestinal carbohydrate assimilation in neonatal calves

Trotta, R. J., Ward, A. K. & Swanson, K. C., Nov 2020, In: Journal of Dairy Science. 103, 11, p. 10060-10073 14 p.

Research output: Contribution to journal › Article › peer-review

Whole stillage inclusion level influences in vitro fiber digestibility and ruminal fermentation of tall fescue hay

Ajayi, H. J., Davis, B. E., Lehmkuhler, J. W., Harmon, D. L., Jiang, Y. & Trotta, R. J., 2025, In: Journal of Animal Science. 103, skaf006.

Research output: Contribution to journal › Article › peer-review

Influence of flake density and starch retrogradation on in vitro gas production kinetics, digestibility, and ruminal fermentation characteristics of steam-flaked corn

Trotta, R. J., Kreikemeier, K. K. & Harmon, D. L., 2024, In: Journal of Animal Science. 102, skae308.

Research output: Contribution to journal › Article › peer-review

Influence of postruminal casein infusion and exogenous glucagon-like peptide 2 administration on the jejunal mucosal transcriptome in cattle

Trotta, R. J., Swanson, K. C., Klotz, J. L. & Harmon, D. L., Aug 1 2024, In: PLoS ONE. 19, 8, e0308983.

Research output: Contribution to journal › Article › peer-review

Levodopa attenuates the feed intake reduction caused by ergot alkaloids in cattle

Valente, E. E. L., Klotz, J. L., Markmann, R. C., Trotta, R. J., Edwards, J. L., May, J. B. & Harmon, D. L., 2024, In: Journal of Animal Science. 102, skae078.

Research output: Contribution to journal › Article › peer-review