Journal Articles
Hristov,A,N; Lee,C; Hristova,R; Huhtanen,P; Firkins,J,L, "A meta-analysis of variability in continuous-culture ruminal fermentation and digestibility data" JOURNAL OF DAIRY SCIENCE 95 9 (2012) 5299-5307-5299-5307
Reveneau,C; Ribeiro,C,VDM; Eastridge,M,L; Firkins,J,L, "Interaction of unsaturated fat or coconut oil with monensin in lactating dairy cows fed 12 times daily. II. Fatty acid flow to the omasum and milk fatty acid profile" JOURNAL OF DAIRY SCIENCE 95 4 (2012) 2061-2069-2061-2069
Bateman,H,G; Hill,T,M; Aldrich,J,M; Schlotterbeck,R,L; Firkins,J,L, "Meta-analysis of the effect of initial serum protein concentration and empirical prediction model for growth of neonatal Holstein calves through 8 weeks of age" JOURNAL OF DAIRY SCIENCE 95 1 (2012) 363-369-363-369
Eastridge,M,L; Lefeld,A,H; Eilenfeld,A,M; Gott,P,N; Bowen,W,S; Firkins,J,L, "Corn grain and liquid feed as nonfiber carbohydrate sources in diets for lactating dairy cows" JOURNAL OF DAIRY SCIENCE 94 6 (2011) 3045-3053-3045-3053
Firkins, J.L., "Reconsidering rumen microbial consortia to enhance feed efficiency and reduce environmental impact of ruminant livestock production systems." R. Bras. Zootec. 39 (2010) 445-457-445-457
Ribeiro,C,VDM; Eastridge,M,L; Firkins,J,L; St-Pierre,N,R; Palmquist,D,L, "Kinetics of fatty acid biohydrogenation in vitro" JOURNAL OF DAIRY SCIENCE 90 3 (2007) 1405-1416-1405-1416
Reveneau,C; Ribeiro,C,VDM; Eastridge,M,L; St-Pierre,N,R; Firkins,J,L, "Processing whole cottonseed moderates fatty acid metabolism and improves performance by dairy cows" JOURNAL OF DAIRY SCIENCE 88 12 (2005) 4342-4355-4342-4355
Qiu,X; Eastridge,M,L; Firkins,J,L, "Effects of dry matter intake, addition of buffer, and source of fat on duodenal flow and concentration of conjugated linoleic acid and trans-11 C-18 : 1 in milk" JOURNAL OF DAIRY SCIENCE 87 12 (2004) 4278-4286-4278-4286
Qiu,X; Eastridge,M,L; Griswold,K,E; Firkins,J,L, "Effects of substrate, passage rate, and pH in continuous culture on flows of conjugated linoleic acid and trans C-18 : 1" JOURNAL OF DAIRY SCIENCE 87 10 (2004) 3473-3479-3473-3479
Firkins,J,L; Harvatine,D,I; Sylvester,J,T; Eastridge,M,L, "Lactation performance by dairy cows fed wet brewers grains or whole cottonseed to replace forage" JOURNAL OF DAIRY SCIENCE 85 10 (2002) 2662-2668-2662-2668
Harvatine,D,I; Firkins,J,L; Eastridge,M,L, "Whole linted cottonseed as a forage substitute fed with ground or steam-flaked corn: Digestibility and performance" JOURNAL OF DAIRY SCIENCE 85 8 (2002) 1976-1987-1976-1987
Harvatine,D,I; Winkler,J,E; Devant-Guille,M; Firkins,J,L; St-Pierre,N,R; Oldick,B,S; Eastridge,M,L, "Whole linted cottonseed as a forage substitute: Fiber effectiveness and digestion kinetics" JOURNAL OF DAIRY SCIENCE 85 8 (2002) 1988-1999-1988-1999
Callison,S,L; Firkins,J,L; Eastridge,M,L; Hull,B,L, "Site of nutrient digestion by dairy cows fed corn of different particle sizes or steam-rolled" JOURNAL OF DAIRY SCIENCE 84 6 (2001) 1458-1467-1458-1467
Slater,A,L; Eastridge,M,L; Firkins,J,L; Bidinger,L,J, "Effects of starch source and level of forage neutral detergent fiber on performance by dairy cows" JOURNAL OF DAIRY SCIENCE 83 2 (2000) 313-321-313-321
Pires,A,V; Eastridge,M,L; Firkins,J,L; Lin,Y,C, "Effects of heat treatment and physical processing of cottonseed on nutrient digestibility and production performance by lactating cows" JOURNAL OF DAIRY SCIENCE 80 8 (1997) 1685-1694-1685-1694
Harmison,B; Eastridge,M,L; Firkins,J,L, "Effect of percentage of dietary forage neutral detergent fiber and source of starch on performance of lactating Jersey cows" JOURNAL OF DAIRY SCIENCE 80 5 (1997) 905-911-905-911
Pires,A,V; Eastridge,M,L; Firkins,J,L, "Roasted soybeans, blood meal, and tallow as sources of fat and ruminally undegradable protein in the diets of lactating cows" JOURNAL OF DAIRY SCIENCE 79 9 (1996) 1603-1610-1603-1610
PANTOJA,J; Firkins,J,L; Eastridge,M,L; Hull,B,L, "Fatty acid digestion in lactating dairy cows fed fats varying in degree of saturation and different fiber sources" JOURNAL OF DAIRY SCIENCE 79 4 (1996) 575-584-575-584
PANTOJA,J; Firkins,J,L; Eastridge,M,L, "Fatty acid digestibility and lactation performance by dairy cows fed fats varying in degree of saturation" JOURNAL OF DAIRY SCIENCE 79 3 (1996) 429-437-429-437
PANTOJA,J; Firkins,J,L; Eastridge,M,L, "SITE OF DIGESTION AND MILK-PRODUCTION BY COWS FED FATS DIFFERING IN SATURATION, ESTERIFICATION, AND CHAIN-LENGTH" JOURNAL OF DAIRY SCIENCE 78 10 (1995) 2247-2258-2247-2258
PANTOJA,J; Firkins,J,L; Eastridge,M,L; Hull,B,L, "EFFECTS OF FAT-SATURATION AND SOURCE OF FIBER ON SITE OF NUTRIENT DIGESTION AND MILK-PRODUCTION BY LACTATING DAIRY-COWS" JOURNAL OF DAIRY SCIENCE 77 8 (1994) 2341-2356-2341-2356
Sultan,J,I; Fluharty,F,L; Firkins,J,L; Loerch,S,C, "EFFECTS OF SUPPLEMENTAL PROTEIN-SOURCE AND ALKALINE HYDROGEN-PEROXIDE TREATMENT OF WHEAT STRAW ON SITE OF NUTRIENT DIGESTION AND FLOW OF NITROGENOUS COMPOUNDS TO THE DUODENUM OF STEERS" JOURNAL OF ANIMAL SCIENCE 70 12 (1992) 3909-3915-3909-3915
Sultan,J,I; Firkins,J,L; Weiss,W,P; Loerch,S,C, "EFFECTS OF ENERGY-LEVEL AND PROTEIN-SOURCE ON NITROGEN KINETICS IN STEERS FED WHEAT STRAW-BASED DIETS" JOURNAL OF ANIMAL SCIENCE 70 12 (1992) 3916-3921-3916-3921
Hackmann, T.J., and J.L. Firkins, "Mixed rumen microbes respond to excess carbohydrate by synthesizing reserve carbohydrate and spilling energy" Appl. Environ. Microbiol.
Conferences
Firkins, J.L., "Considerations for optimizing low-starch diets for dairy cattle" Minnesota Nutrition Conference 2011.
Firkins, J.L., "Low-Starch Co-Products in Cattle Diets" Proceedings of the Western Nutrition Conference 2011.
Firkins, J.L., "Liquid Feeds and Sugars in Diets for Dairy Cattle" Proceedings of the Florida Ruminant Nutrition Symposium 2011.
Firkins, J.L., "Addition of Sugars to Dairy Rations" 2010.
Firkins, J.L., "Addition of Sugars to Dairy Rations" 19th Annual Tri-State Dairy Nutrition Conference 2010.
Firkins, J.L., "Addition of Sugars to Dairy Rations" 2010 Tri-State Dairy Nutrition Conference Proceedings 2010.
Firkins, J.L., "Metabolism of Sugars and Carbohydrates." Proceedings of the Liquid Feed Symposium 2010.
Firkins, J.L., "Matching Quantity and Quality of Protein Sources with Rumen Bacterial Requirements." Adisseo Pre-Conference at the 2010 Pacific Northwest Animal Nutrition Converence 2010.
Presentations
"Rumen Protozoa: Bad Actors or Useful Symbionts?." In 24th ADSA Discover Conference: Rumen Microbiology.. 2012.
"Can We Really Model Digestive Ecosystems?." In 8th Rowett-INRA Symposium on Gut Microbiology. 2012.
"Quantizing the Quantitativeness of qPCR." In Procter & Gamble seminar. 2012.
"Starch and rumen-digestible carbohydrate in dairy rations." In Cargill/Elanco Research Update. 2011.
"The role of the rumen microbiota to enhance feed efficiency and reduce environmental impact of ruminant production systems.." In First Joint Association Argentina Production Animal/American Association of Animal Science Meeting. 2011.
"Considerations for optimizing low-starch diets for dairy cattle.." In Minnesota Nutrition Conference. 2011.
"Rumen protozoal growth, chemotaxis, and implications for nitrogen and methane emissions from dairy farms.." In University of Alberta. 2011.
"Low-starch co-products in cattle diets.." In Western Nutrition Conference. 2011.
"Rumen protozoa: Understanding how conserved signaling mechanisms control the ecology of the grazers residing within the grazers.." In OSU Nutrition Seminar. 2011.
"Rumen Microbial Ecology: Understanding the role of the grazers residing within the grazers.." In Ohio Branch of American Society of Microbiology Meetings. 2011.
"Liquid feeds and sugars in diets for dairy cattle.." In Florida Ruminant Nutrition Symposium. 2011.
"Rumen protozoal growth and chemotaxis: Just another day equilibrating in the medial mat?." In Aarhus University. 2011.
"Matching Quantity and Quality of Protein Sources with Rumen Bacterial Requirements.." In Adisseo Pre-Conference at the 2010 Pacific Northwest Animal Nutrition Conference. 2010.
"Metabolism of Sugars and Carbohydrates.." In Liquid Feed Symposium. 2010.
"Addition of sugars to dairy rations.." In Tri-State Dairy Nutrition Conference. 2010.
"Feeding protein to dairy cows.." In Latin American Animal Nutrition Course.. 2010.
"Nutrition and reproduction interactions in cattle.." In Latin American Animal Nutrition Course. 2010.
"Effective fiber and non-structural carbohydrates for dairy cattle.." In Latin American Animal Nutrition Course. 2010.
"Nutrition and reproduction interactions in cattle.." In Latin American Animal Nutrition Course. 2010.
"Feeding fat to dairy cows.." In Latin American Animal Nutrition Course. 2010.
"Practical applications of recent research on liquid feeds for dairy cattle.." In Quality Liquid Feeds Beef and Dairy Consultant VIP Tour. 2009.
"Update on HMBi Project.." In Adisseo Advancia Meeting. 2009.
"Integration of microbial profiling techniques to improve the efficiency of nutrient usage in ruminant production.." In American Dairy Science Association/American Society of Animal Science national meeting.. 2009.
"Rumen protozoa and nutrient usage in dairy cows: predatory lenders or free-market spenders.." 2009.
"Rumen protozoa and nutrient usage in dairy cows: predatory lenders or free-market spenders.." 2009.
"Protein Sources and the New NRC System for Protein. 27th Food Animal Medicine Conference. Ohio State University, Columbus. Nov. 2, 2001.." 2001.
"Nutrition and Reproduction Interactions in Cattle. Latin American Animal Nutrition Course. San Jose, Costa Rica. Sept. 3-7, 2001.." 2001.
"Feeding Fat to Dairy Cows. Latin American Animal Nutrition Course. San Jose, Costa Rica. Sept. 3-7, 2001." 2001.
"Feeding Protein to Dairy Cows. Latin American Animal Nutrition Course. San Jose, Costa Rica. Sept. 3-7, 2001." 2001.
"Forage Quality and Feeding Quality for Dairy Cattle. Latin American Animal Nutrition Course, Costa Rica." 2001.
"Feeding Dairy Cattle During Periods of Heat Stress. Latin American Animal Nutrition Course. San Jose, Costa Rica. Sept. 3-7, 2001." 2001.
