SFA Faculty Listing

Robert Bayer, Animal Science
Timothy Bowden, Aquaculture
Stephanie Burnett, Horticulture
Beth Calder, Food Science
Mary Ellen Camire, Food Science
Robert Causey, Animal Science
Susan Erich, Plant and Soil Chemistry
Eric Gallandt, Weed Ecology
Jianjun (Jay) Hao, Plant Pathology
Mark Hutton, Vegetable Crops
Pauline Kamath, Animal Health
Dorothy Klimis-Zacas, Clinical Nutrition
Anne Lichtenwalner, Animal Science
Ellen Mallory, Sustainable Agriculture
David Marcinkowski, Animal Science
Renae Moran, Pomology
Angela Myracle, Human Nutrition
Balu Nayak, Food Science
Tsutomu Ohno, Soil Chemistry
Brian Perkins, Food Science
Jennifer Perry, Food Microbiology
Bryan Peterson, Horticulture
Greg Porter, Crop Ecology
Juan Romero, Animal Nutrition
Marianne Sarrantonio, Sustainable Agriculture
Denise Skonberg, Food Science
Martin Stokes, Animal Science
Susan Sullivan, Human Nutrition
Mona Therrien, Human Nutrition
James Weber, Animal Science
Adrienne White, Human Nutrition
David Yarborough, Horticulture
Kate Yerxa, Human Nutrition

Assistant Professor of Animal Nutrition11010001

Degree: Ph. D. 2013, University of Florida
Phone: 207.581.2925
Email: juan.romero@maine.edu
Location: 203 Rogers Hall

Professional Interests: forage quality and conservation, ruminant nutrition, animal systems microbiota, and enzymology.

Teaching: AVS 145 Animal Science

Research: Dr. Romero aims to expand the understanding of the factors that affect forage quality and conservation in order to develop novel additives that will improve profitability of livestock producers. Specifically, his program focuses on the methodological use of fungal enzymes to solve specific issues in silage production and the development of biologically-based additives to enhance the stability of conserved forages. In order to better understand the processes that affect silage and hay production, Dr. Romero not only relies on well-established agronomic and nutritional techniques but also on next-generation sequencing and proteomics to push the envelope by developing novel research hypotheses. Dr. Romero pioneered the use of proteomics to compare commercially-available fibrolytic enzymes in animal nutrition, suggesting for the first time specific enzymes involved in improving ruminal fiber digestibility, and the use of next generation sequencing to assess the corn and oats silage microbiome. Dr. Romero has also used next generation sequencing to describe bacterial communities in the liquid and solid fractions of the rumen under the influence of different biological additives.

Juan Romero’s Google Scholar page

Recent Publications:

Romero, J.J., Y. Zhao, M.A. Balseca-Paredes, F. Tiezzi, E. Gutierrez-Rodriguez, and M.S. Castillo. 2017. Laboratory silo type and inoculation effects on nutritional composition, fermentation, and bacterial and fungal communities of oat silage. J. Dairy Sci. 100:1812-1828.

Romero, J.J.; Macias, E.G.; Ma, Z.K.; Marcondes, R.; Staples, C.R.; Beauchemin, K.A.; Adesogan, A.T. 2016. Improving the performance of dairy cattle with a xylanase-rich exogenous enzyme preparation. J. Dairy Sci. 99:3486-3496.

Romero, J.J.; Ma, Z.X.; Gonzalez, C.F.; Adesogan, A.T. 2015. Effect of adding cofactors to exogenous fibrolytic enzymes on pre-ingestive fiber hydrolysis and in vitro digestibility of bermudagrass haylage. J. Dairy Sci. 98:4659-4672.

Romero, J.J.; Zarate, M.A.; Adesogan, A.T.  2015. Effect of the dose of exogenous fibrolytic enzyme preparations on pre-ingestive fiber hydrolysis and in vitro digestibility of bermudagrass haylage. J. Dairy Sci. 98:406-417.

Romero, J.J.; Zarate, M.A.; Arriola, K.G.; Gonzalez, C.F.; Silva-Sanchez, C.; Staples, C.R.; Adesogan, A.T. 2015. Screening exogenous fibrolytic enzyme preparations for improved in vitro digestibility of bermudagrass haylage. J. Dairy Sci. 98:2555-2567.

Romero, J.J.; Zarate, M.A.; Queiroz, O.C.M.; Han, J.H.; Shin, J.H.; Staples, C.R.; Brown, W.F.; Adesogan, A.T. 2013. Fibrolytic enzyme and ammonia application effects on the nutritive value, intake, and digestion kinetics of bermudagrass hay in beef cattle. J. Anim. Sci. 91:4345-4356.