Selected Bibliography
The following is a selection of bibliographical references divided by subject to further explore the topics discussed. The list is not meant to be exhaustive and suggestions are gladly accepted.
Methane mitigation strategies
ARNDT, Claudia, et al. Full adoption of the most effective strategies to mitigate methane emissions by ruminants can help meet the 1.5 C target by 2030 but not 2050. Proceedings of the National Academy of Sciences, 2022, 119.20: e2111294119. https://doi.org/10.1073/pnas.211129411
BEAUCHEMIN, Karen A., et al. Invited review: Current enteric methane mitigation options. Journal of Dairy Science. 2022, vol. 105, n. 12, p. 9297-9326. https://doi.org/10.3168/jds.2022-22091
BEAUCHEMIN, Karen A., et al. The path to net-zero in dairy production: are pronounced decreases in enteric methane achievable?. Annual Review of Animal Biosciences, 2025, 13. https://doi.org/10.1146/annurev-animal-010324-113703
HRISTOV, Alexander N., et al. Feed additives for methane mitigation: Recommendations for testing enteric methane-mitigating feed additives in ruminant studies. Journal of Dairy Science, 2025, 108.1: 322-355. https://doi.org/10.3168/jds.2024-25050
WATERS, S. M., et al. The role of rumen microbiome in the development of methane mitigation strategies for ruminant livestock. Journal of Dairy Science, 2025. https://doi.org/10.3168/jds.2024-25778
Carbon stable isotopes in ruminants
CHANG, Jinfeng, et al. Revisiting enteric methane emissions from domestic ruminants and their δ13CCH4 source signature. Nature Communications, 2019, 10.1: 3420. https://doi.org/10.1038/s41467-019-11066-3
DE SMET, Stefaan, et al. Stable carbon isotope analysis of different tissues of beef animals in relation to their diet. Rapid Communications in mass spectrometry, 2004, 18.11: 1227-1232. https://doi.org/10.1002/rcm.1471
KLEVENHUSEN, Fenja, et al. Efficiency of monolaurin in mitigating ruminal methanogenesis and modifying C-isotope fractionation when incubating diets composed of either C3 or C4 plants in a rumen simulation technique (Rusitec) system. British Journal of Nutrition, 2009, 102.9: 1308-1317. https://doi.org/10.1017/S0007114509990262
KLEVENHUSEN, F., et al. The methanogenic potential and C-isotope fractionation of different diet types represented by either C3 or C4 plants as evaluated in vitro and in dairy cows. Australian Journal of Experimental Agriculture, 2008, 48.2: 119-123. https://doi.org/10.1071/EA07240
LOPES, J. C., et al. Effect of 3-nitrooxypropanol on methane and hydrogen emissions, methane isotopic signature, and ruminal fermentation in dairy cows. Journal of Dairy Science, 2016, 99.7: 5335-5344. https://doi.org/10.3168/jds.2015-10832
METGES, Cornelia; KEMPE, Klaus; SCHMIDT, Hanns-Ludwig. Dependence of the carbon-isotope contents of breath carbon dioxide, milk, serum and rumen fermentation products on the δ13C value of food in dairy cows. British Journal of Nutrition, 1990, 63.2: 187-196. https://doi.org/10.1079/BJN19900106
PASSEY, Benjamin H., et al. Carbon isotope fractionation between diet, breath CO2, and bioapatite in different mammals. Journal of Archaeological Science, 2005, 32.10: 1459-1470. https://doi.org/10.1016/j.jas.2005.03.015
PENNING, Holger, et al. Variation of carbon isotope fractionation in hydrogenotrophic methanogenic microbial cultures and environmental samples at different energy status. Global Change Biology, 2005, 11.12: 2103-2113. https://doi.org/10.1111/j.1365-2486.2005.01076.x
SCHULZE, E.; GIESE, W. Fractionation of carbon isotopes during carbohydrate fermentation in ruminants. Isotopes in Environmental and Health Studies, 1993, 29.1-2: 141-147. https://doi.org/10.1080/10256019308046147
SPONHEIMER, Matt, et al. An experimental study of carbon-isotope fractionation between diet, hair, and feces of mammalian herbivores. Canadian Journal of Zoology, 2003, 81.5: 871-876. https://doi.org/10.1139/z03-066
Continuous culture fermenter
BENNETT, Sarah L., et al. Effects of bacterial cultures, enzymes, and yeast-based feed additive combinations on ruminal fermentation in a dual-flow continuous culture system. Translational Animal Science, 2021, 5.2: txab026. https://doi.org/10.1093/tas/txab026
BRANDAO, Virginia LN; FACIOLA, Antonio P. Unveiling the relationships between diet composition and fermentation parameters response in dual-flow continuous culture system: a meta-analytical approach. Translational Animal Science, 2019, 3.3: 1064-1075. https://doi.org/10.1093/tas/txz019
CAGLIARI, Amanda Regina, et al. Evaluation of yeast-based additives on rumen fermentation in high-and low-concentrate diets using a dual-flow continuous culture system. Translational Animal Science, 2024, 8: txae169. https://doi.org/10.1093/tas/txae169
DILLARD, S. Leanne, et al. Evaluation of a single‐flow continuous culture fermenter system for determination of ruminal fermentation and enteric methane production. Journal of Animal Physiology and Animal Nutrition, 2019, 103.5: 1313-1324. https://doi.org/10.1111/jpn.13155
ISHLAK, A.; GÜNAL, M.; ABUGHAZALEH, A. A. The effects of cinnamaldehyde, monensin and quebracho condensed tannin on rumen fermentation, biohydrogenation and bacteria in continuous culture system. Animal Feed Science and Technology, 2015, 207: 31-40. https://doi.org/10.1016/j.anifeedsci.2015.05.023
MUETZEL, Stefan, et al. Evaluation of a stratified continuous rumen incubation system. Animal Feed Science and Technology, 2009, 151.1-2: 32-43. https://doi.org/10.1016/j.anifeedsci.2008.11.001
QUINN, Loyd Y. Continuous Culture of Ruminal Microorganisms in Chemically Defined Medium: I. Design of Continuous-Culture Apparatus. Applied Microbiology, 1962, 10.6: 580-582. https://doi.org/10.1128/am.10.6.580-582.1962
TEATHER, R. M.; SAUER, F. D. A naturally compartmented rumen simulation system for the continuous culture of rumen bacteria and protozoa. Journal of Dairy Science, 1988, 71.3: 666-673. https://doi.org/10.3168/jds.S0022-0302(88)79605-8
WENNER, B. A., et al. Dual-flow continuous culture fermentor system updated to decrease variance of estimates of digestibility of neutral detergent fiber. Applied Animal Science, 2021, 37.4: 445-450. https://doi.org/10.15232/aas.2021-02144
WENNER, B. A., et al. Effect of increasing dietary levels of a palmitic acid-enriched supplement on fiber digestibility, rumen fermentation, and microbial composition in high fiber diets. Journal of dairy science, 2025. https://doi.org/10.3168/jds.2024-25779
WENNER, B. A., et al. Evaluation of methane mitigation by organic feed additives in dual-flow continuous culture. JDS communications, 2024. https://doi.org/10.3168/jdsc.2024-0673