Positions

Overview

  • My research interests can be grouped in three areas: 1) enhance nitrogen utilization in lactating dairy cows via dietary manipulation; 2) enhance the concentration of total nonstructural carbohydrates in forages via daytime cutting management; and 3) enhance pasture nutrient utilization via supplementation with energy sources. The overall goal is to balance the supply of rumen-degradable protein and fermentable energy to enhance microbial protein synthesis while reducing nitrogen excretion to the environment.
  • Selected Publications

    Academic Article

    Year Title
    2021 Dietary starch level and rumen-protected methionine, lysine, and histidine: Effects on milk yield, nitrogen, and energy utilization in dairy cows fed diets low in metabolizable protein.Journal of Dairy Science.  104:9784-9800. 2021
    2021 Replacing soybean meal with okara meal: Effects on production, milk fatty acid and plasma amino acid profile, and nutrient utilization in dairy cows.Journal of Dairy Science.  104:3109-3122. 2021
    2020 Assessing the potential of milk iodine intake to mitigate iodine deficiency in pregnant women of the United States via supplementation of Ascophyllum nodosum meal to dairy cows: A sensitivity analysis.Journal of Dairy Science.  103:6798-6809. 2020
    2020 Symposium review: Comparisons of feed and milk nitrogen efficiency and carbon emissions in organic versus conventional dairy production systems.Journal of Dairy Science.  103:5726-5739. 2020
    2020 Production and nitrogen metabolism in lactating dairy cows fed finely ground field pea plus soybean meal or canola meal with or without rumen-protected methionine supplementation.Journal of Dairy Science.  103:3161-3176. 2020
    2019 Production, milk iodine, and nutrient utilization in Jersey cows supplemented with the brown seaweed Ascophyllum nodosum (kelp meal) during the grazing season.Journal of Dairy Science.  102:8040-8058. 2019
    2019 Incremental amounts of rumen-protected histidine increase plasma and muscle histidine concentrations and milk protein yield in dairy cows fed a metabolizable protein-deficient diet.Journal of Dairy Science.  102:4138-4154. 2019
    2019 Production, milk fatty acid profile, and nutrient utilization in grazing dairy cows supplemented with ground flaxseed.Journal of Dairy Science.  102:1294-1311. 2019
    2018 A Review of Lignan Metabolism, Milk Enterolactone Concentration, and Antioxidant Status of Dairy Cows Fed Flaxseed.Molecules.  24:41-41. 2018
    2018 Production, milk and plasma fatty acid profile, and nutrient utilization in Jersey cows fed flaxseed oil and corn grain with different particle size.Journal of Dairy Science.  101:2127-2143. 2018
    2018 Replacing ground corn with incremental amounts of liquid molasses does not change milk enterolactone but decreases production in dairy cows fed flaxseed meal.Journal of Dairy Science.  101:2096-2109. 2018
    2017 The plasma free amino acid dose-response technique: A proposed methodology for determining lysine relative bioavailability of rumen-protected lysine supplements.Journal of Dairy Science.  100:9585-9601. 2017
    2017 Production performance and milk fatty acid profile in grazing dairy cows offered ground corn or liquid molasses as the sole supplemental nonstructural carbohydrate source.Journal of Dairy Science.  100:8146-8160. 2017
    2017 Short communication: The mammalian lignan enterolactone is absorbed by newborn dairy calves fed enterolactone-enriched milk.Journal of Dairy Science.  100:8170-8175. 2017
    2017 Production and nitrogen utilization in lactating dairy cows fed ground field peas with or without ruminally protected lysine and methionine.Journal of Dairy Science.  100:6239-6255. 2017
    2015 Integrating spot short-term measurements of carbon emissions and backward dietary energy partition calculations to estimate intake in lactating dairy cows fed ad libitum or restricted.Journal of Dairy Science.  98:8913-8925. 2015
    2015 Short communication: Feeding red clover cut in the afternoon or morning to late-lactation dairy cows.Journal of Dairy Science.  98:7335-7339. 2015
    2015 Incremental amounts of ground flaxseed decrease milk yield but increase n-3 fatty acids and conjugated linoleic acids in dairy cows fed high-forage diets(1).Journal of Dairy Science.  98:4785-4799. 2015
    2015 Short communication: Use of a portable, automated, open-circuit gas quantification system and the sulfur hexafluoride tracer technique for measuring enteric methane emissions in Holstein cows fed ad libitum or restricted.Journal of Dairy Science.  98:2676-2681. 2015
    2015 Incremental amounts of Ascophyllum nodosum meal do not improve animal performance but do increase milk iodine output in early lactation dairy cows fed high-forage diets.Journal of Dairy Science.  98:1991-2004. 2015
    2015 Interactions of corn meal or molasses with a soybean-sunflower meal mix or flaxseed meal on production, milk fatty acid composition, and nutrient utilization in dairy cows fed grass hay-based diets.Journal of Dairy Science.  98:443-457. 2015
    2014 A Scale-Explicit Framework for Conceptualizing the Environmental Impacts of Agricultural Land Use ChangesSustainability.  6:8432-8451. 2014

    Conference Paper

    Year Title
    2020 A meta-analysis to compare feed and milk N efficiency of Holstein and Jersey cowsJournal of Dairy Science. 251-251. 2020
    2020 Comparison of milk iodine concentration between retail conventional and organic milk in the United States.Journal of Dairy Science. 222-223. 2020
    2020 Dietary energy source and rumen-protected amino acids: Effects on CH4 emissions and heat production in lactating dairy cows.Journal of Dairy Science. 252-252. 2020
    2020 Dietary energy source and rumen-protected amino acids: Effects on milk production and plasma amino acid concentrations in dairy cows.Journal of Dairy Science. 137-138. 2020
    2020 Effect of different levels of Ascophyllum nodosum meal on iodine metabolism in Jersey cows.Journal of Dairy Science. 248-248. 2020
    2020 Effects of Ascophyllum nodosum meal and monensin on ruminal fermentation and microbiota.Journal of Dairy Science. 258-258. 2020
    2020 Effects of ground flaxseed on ruminal microbiome composition in Jersey cows during the grazing season.Journal of Dairy Science. 292-292. 2020
    2020 Evaluation of research needs and management practices on organic, grass-fed dairy farms in the United States.Journal of Dairy Science. 236-236. 2020
    2020 Milk production and composition in Jersey cows grazing forage canola.Journal of Dairy Science. 277-277. 2020
    2020 Ruminal metabolism and plasma amino acids in Jersey cows grazing forage canola.Journal of Dairy Science. 154-154. 2020
    2017 Winter supplementation of ground whole flaxseed impacts milk fatty acid composition on organic dairy farms in the Northeastern United States.Journal of Animal Science. 142-143. 2017
    2011 Effect of time of cutting and maceration on forage composition, nutrient flow, microbial protein synthesis, and digestibility in dual-flow continuous cultureCanadian Journal of Animal Science. 486-487. 2011
    2011 Effect of Cutting Time and Maceration on Nitrogen Utilization of Trefoil-Grass Hay by Growing Cattle.Advances in Dairy Technology, Vol 23. 384-384. 2011
    2010 Effect of cutting time and conditioning method on cattle preference for trefoil-grass hay.Journal of Dairy Science. 477-477. 2010
    2010 Effect of cutting time and maceration on nitrogen utilization of trefoil-grass hay by growing steers.Journal of Dairy Science. 317-318. 2010
    2010 High total nonstructural carbohydrates timothy enhanced performance of mid-lactation dairy cows.Journal of Dairy Science. 146-147. 2010
    2009 Nitrogen partitioning study with dairy cows fed red clover silage: unaccounted lossesCanadian Journal of Animal Science. 136-136. 2009
    2007 Alfalfa harvested in the afternoon increases performance of lactating dairy cowsJournal of Dairy Science. 432-433. 2007
    2007 Alfalfa harvested in the afternoon increases performance of lactating dairy cowsPoultry Science. 432-433. 2007
    2007 Alfalfa harvested in the afternoon increases performance of lactating dairy cowsJournal of Animal Science. 432-433. 2007
    2007 Increasing non structural carbohydrates in alfalfa improves in vitro microbial N synthesisJournal of Animal Science. 430-430. 2007
    2007 Increasing non structural carbohydrates in alfalfa improves in vitro microbial N synthesisJournal of Dairy Science. 430-430. 2007
    2005 Ruminal outflow of soluble amino acid fractions in lactating dairy cowsJournal of Animal Science. 89-89. 2005
    2005 Ruminal outflow of soluble amino acid fractions in lactating dairy cowsJournal of Dairy Science. 89-89. 2005
    2004 Effects of different protein supplements on nitrogen utilization in dairy cows. I. Lactation performance and ruminal metabolismJournal of Animal Science. 161-161. 2004
    2004 Effects of different protein supplements on nitrogen utilization in dairy cows. I. Lactation performance and ruminal metabolismPoultry Science. 161-161. 2004
    2004 Effects of different protein supplements on nitrogen utilization in dairy cows. I. Lactation performance and ruminal metabolismJournal of Dairy Science. 161-161. 2004
    2004 Effects of different protein supplements on nitrogen utilization in dairy cows. II. Digesta flow and bacterial protein synthesisJournal of Animal Science. 161-161. 2004
    2004 Effects of different protein supplements on nitrogen utilization in dairy cows. II. Digesta flow and bacterial protein synthesisPoultry Science. 161-161. 2004
    2004 Effects of different protein supplements on nitrogen utilization in dairy cows. II. Digesta flow and bacterial protein synthesisJournal of Dairy Science. 161-161. 2004

    Principal Investigator On

  • A Multi-regional approach to balancing milk and forage quality tradeoffs in organic dairies  awarded by US DA, Department of Agriculture 2020 - 2024
  • Advancing Grass-Fed Dairy: A Whole Systems Approach to Enhancing Productivity and Farm Viability  awarded by University of Vermont 2020 - 2022
  • Accelerating Implementation of Algae-Feed for Dairy Cows  awarded by Bigelow Laboratories for Ocean Studies 2020 - 2022
  • Seed Grant: Relationship Between Ruminal Microbiome and Methane Emissions  awarded by US DA, Department of Agriculture 2018 - 2022
  • Developing Advanced Perennial Legume-Grass Mixtures Harvested as Stored Feeds to Improve herd Productivity and Mitigate Greenhouse Gas Emissions in Organic Dairies in the Northeast  awarded by US DA, Department of Agriculture 2016 - 2021
  • Investigate Effects of Denitrifying Probiotic on Methane Emissions  awarded by Bezoar Laboratories 2019 - 2021
  • Unraveling Challenges and Opportunities of Kelp Meal Supplementation in NE Organic Dairies  awarded by University of Vermont 2016 - 2020
  • Forage Brassicas  awarded by US DA, Department of Agriculture 2016 - 2020
  • Developing Energy Dense Legume-Grass Mixture to Improve the Environmental Sustainability of Organic Dairies in Northeast  awarded by University of Vermont 2017 - 2019
  • Forage-Based Approaches for Improving Profitability and Ecosystem Services of Dairy Farms in New Hampshire and Pennsylvania  awarded by University of Vermont 2013 - 2017
  • A Planning Network of Organic Farmers, Researchers, and dairy Processors to Optimize Productivity and Resiliency of Forage Production on Organic Dairy Farms  awarded by US DA, Department of Agriculture 2015 - 2017
  • Adisseo Smartamine ML Comparative Trial to AjiPro-L  awarded by Adisseo, Inc 2016 - 2017
  • Research and Educational Approaches to Guide Dairy Farmer Decisions About Kelp Meal Supplementation in the Northeast  awarded by University of Vermont 2015 - 2016
  • Adisseo Smartamine ML Project  awarded by Adisseo, Inc 2016
  • Assisting Organic Dairy Producers to Meet the Demands of New and Emerging Milk Markets  awarded by US DA, Department of Agriculture 2011 - 2016
  • Validate the Bioavailability of AjiPro-L 3G Using the In Vivo Plasma Lysine Response Methond  awarded by Ajinomoto Co Inc 2015 - 2016
  • Determining Plasma Methionine Concentrations for Holsteins Supplemented with 24 g/d From Four RP-MET Sources Using the Plasma Does-Response Method  awarded by Adisseo, Inc 2015
  • Determining the Bioavailability of Lysine in RPLys Products Using the In Vivo Plasma Lysine Response Method-A Comparative Evaluation  awarded by QualiTech Inc 2014 - 2015
  • Validation of Novimet Using the UNH in Vivo Plasma Dose-Response Method for Determining Bioavailability of Rumen Protected Amino Acids  awarded by Innovative Additives Inc 2014 - 2015
  • Validation of Blood Sampling Schedule Used in the UNH In Vivo Plasma Dose-Response Method for Determining Bioavailability of Rumen Protected Amino Acids  awarded by Adisseo, Inc 2014
  • Determining the Bioavailability of Lysine in Qualitech RPLys Product Using the In Vivo Plasma Lysine Response Method - a Comparative Evaluation  awarded by QualiTech Inc 2014
  • Determining the Bioavailability of Lysine in MetaboLys  awarded by HJ Baker & Bro Inc 2013 - 2014
  • Determining the Bioavailability of Methionine in Smartamine M Using the In Vivo Plasma Dose-Response Method  awarded by Adisseo, Inc 2013 - 2014
  • Integrating Grazing Research and Surveys to Assess and Advance the Current Knowledge about Kelp Meal Supplementation to Organic Dairy Farms in the Northeast  awarded by University of Vermont 2012 - 2013
  • Determining the Bioavailability of Lysine in RPLys Products Using the In Vivo Plasma Lysine Response Method - a Comparative Evaluation  awarded by Kemin AgriFoods North America Inc 2013
  • Validate the Bioavailabilty of the 2nd Generation AjiPro-L AjiPro-L2G Using the In Vivo Plasma Lysine Response Method  awarded by Ajinomoto Co Inc 2013
  • Determining the Bioavailabity of Lysine in Qualitech RPLys Product Using the In Vivo Plasma Lysine Response Method-A Comparative Evaluation  awarded by QualiTech Inc 2013
  • Determining the Bioavailability of Lysine in AjiPro-L and AminoShue-L Using the In Vivo Plasma Lysine Response Method-A Comparative Evaluation  awarded by Ajinomoto Heartland Inc 2012
  • Determining the Lysine Bioavailability of Rumen-Protected Lysine Products Using an In Vivo Plasma Lysine Response Method  awarded by Adisseo, Inc 2011 - 2012
  • Research and Extension Needs Assessment of the Organic Dairy Industry in the Northeast  awarded by US DA, Department of Agriculture 2010 - 2012
  • Molasses as an Alternative Energy Feed Source for Organic Dairies  awarded by US DA, Department of Agriculture 2010 - 2011
  • Molasses as an Alternative Energy Feed Source for Organic Dairies - Grad Student S. Ross  awarded by University of Vermont 2010 - 2011
  • Teaching Activities

  • Principles of Animal Nutrition Taught course 2021
  • Ruminant Nutr Physiology Taught course 2021
  • Doctoral Research Taught course 2020
  • Intro Animal Science Taught course 2020
  • Intro Animal Science Taught course 2020
  • Principles of Animal Nutrition Taught course 2020
  • Principles of Animal Nutrition Taught course 2020
  • Doctoral Research Taught course 2020
  • Doctoral Research Taught course 2019
  • Doctoral Research Taught course 2019
  • Intro Animal Science Taught course 2019
  • Intro Animal Science Taught course 2019
  • Principles of Animal Nutrition Taught course 2019
  • Principles of Animal Nutrition Taught course 2019
  • Senior Honors Thesis Taught course 2019
  • Doctoral Research Taught course 2019
  • Animal Agriculture Today Taught course 2018
  • Doctoral Dissertation Research Taught course 2018
  • Principles of Animal Nutrition Taught course 2018
  • Principles of Animal Nutrition Taught course 2018
  • Ruminant Nutr Physiology Taught course 2018
  • Doctoral Research Taught course 2017
  • Principles of Animal Nutrition Taught course 2017
  • Principles of Animal Nutrition Taught course 2017
  • Doctoral Research Taught course 2017
  • Ruminant Nutr Physiology Taught course 2017
  • Doctoral Research Taught course 2016
  • Principles of Animal Nutrition Taught course 2016
  • Principles of Animal Nutrition Taught course 2016
  • Field Experience Taught course 2016
  • Investigations Taught course 2016
  • Ruminant Nutr Physiology Taught course 2016
  • Senior Honors Thesis Taught course 2016
  • Doctoral Research Taught course 2015
  • Principles of Animal Nutrition Taught course 2015
  • Principles of Animal Nutrition Taught course 2015
  • Senior Honors Thesis Taught course 2015
  • Ruminant Nutr Physiology Taught course 2015
  • Doctoral Research Taught course 2014
  • Principles of Animal Nutrition Taught course 2014
  • Principles of Animal Nutrition Taught course 2014
  • Investigations Taught course 2014
  • Ruminant Nutr Physiology Taught course 2014
  • Full Name

  • Andre Brito