Different dietary conditions and their effects on the concentration of hydrogen and methane: and nitrate bromoetanosulfonate (BES)

• Grant number: 13/01471-7
• Support Opportunities: Scholarships abroad - Research Internship - Master's degree
• Start date: April 01, 2013
• End date: July 31, 2013
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
• Principal Investigator: Flávio Augusto Portela Santos
• Grantee: Jonas de Souza
• Supervisor: Jeffrey L. Firkins
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Institution abroad: Ohio State University, Columbus, United States
• Associated to the scholarship: 11/15934-3 - Effect of different sources of rumen protected fat to dairy cows kept in elephant grass pasture, BP.MS

Abstract

Methane production is part of the digestive process and ruminant occurs in the rumen. Strategies aimed at reducing enteric methane emissions from ruminants undergo dietary manipulation aimed at the use of hydrogen dissolved in the rumen. The main objective of this project is to evaluate whether different dietary conditions affect the concentration of hydrogen and methane production. Two experiments will be carried out, the first refers to the evaluation of bromoetanosulfonato (BES) and nitrate associated with two passage rates in a system of continuous in vitro fermentation on the concentration of hydrogen and methane production. The second experiment concerns the evaluation of the addition or not of sources of medium chain fatty acids associated with two passage rates on the concentration of hydrogen, methane production and number of protozoa. The internship abroad still aims for closer international relations and improvement of the English language. (AU)