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ARS Home » Midwest Area » Madison, Wisconsin » U.S. Dairy Forage Research Center » Environmentally Integrated Dairy Management Research » Research » Publications at this Location » Publication #397452
Research Project: Improving Sustainability of Dairy and Forage Production Systems for the Upper Midwest

Location: Environmentally Integrated Dairy Management Research

Title: Carbon and nitrogen stable isotopic composition of forages and animal tissues in the southeastern U.S.

Author
item NOVO, SABINA - University Of Florida
item DUBEUX, JOSE - University Of Florida
item Jaramillo, David
item GARCIA, LIZA - University Of Florida
item DANTAS QUEIROZ, LUANA - University Of Florida
item VAN CLEEF, FLAVIA - University Of Florida
item RUIZ-MORENO, MARTIN - University Of Florida

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 9/1/2022
Publication Date: 9/1/2022
Citation: Novo, S., Dubeux, J., Jaramillo, D.M., Garcia, L., Dantas Queiroz, L., Van Cleef, F., Ruiz-Moreno, M. 2022. Carbon and nitrogen stable isotopic composition of forages and animal tissues in the southeastern U.S.. Meeting Abstract. 2022 ASA-CSSA-SSSA Internations Annual Meeting, Baltimore, MD. Nov. 6-9, 2022.

Interpretive Summary:

Technical Abstract: Carbon and nitrogen stable isotopes are naturally present in plant and animal tissues. The natural abundance of d13C and d15N is a useful tool to track the fate of carbon (C) and nitrogen (N) when having binary mixtures of C3 and C4 plants. In the Southeastern U.S., there are some examples of these binary mixtures that are relevant to producers, including bahiagrass (Paspalum notatum Flügge), perennial peanut (Arachis glabrata Benth.) and bermudagrass [Cynodon dactylon (L.) Pers.], alfalfa (Medicago sativa L.). Stable isotopes can be useful indicators of biological processes including biological N2 fixation, soil organic matter formation, diet composition, botanical composition, and greenhouse gas emissions. Our objective is to provide a summary of the results from 2015 to 2022 of isotopic composition across several sample types collected at the University of Florida North Florida Research and Education Center Stable Isotope Laboratory. Data presented include forage, soil, and animal samples (feces, red blood cells, and plasma), and methane from soils and animals.