E
Ermias Kebreab
Researcher at University of California, Davis
Publications - 386
Citations - 13992
Ermias Kebreab is an academic researcher from University of California, Davis. The author has contributed to research in topics: Dairy cattle & Greenhouse gas. The author has an hindex of 55, co-authored 350 publications receiving 11366 citations. Previous affiliations of Ermias Kebreab include University of Reading & Wageningen University and Research Centre.
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Journal ArticleDOI
Special topics--Mitigation of methane and nitrous oxide emissions from animal operations: I. A review of enteric methane mitigation options.
Alexander N. Hristov,Joonpyo Oh,Jeffrey L. Firkins,Jan Dijkstra,Ermias Kebreab,G. Waghorn,H. P. S. Makkar,Adegbola T. Adesogan,W.Z. Yang,Chanhee Lee,Pierre J. Gerber,Benjamin B. Henderson,J.M. Tricarico +12 more
TL;DR: Improve forage quality and the overall efficiency of dietary nutrient use is an effective way of decreasing CH4 Ei, and several feed supplements have a potential to reduce CH4 emission from ruminants although their long-term effect has not been well established and some are toxic or may not be economically feasible.
Journal ArticleDOI
Prediction of Methane Production from Dairy and Beef Cattle
TL;DR: Two of the 9 extant equations evaluated predicted CH4 production adequately, however, the new models based on more commonly determined values showed an improvement in predictions over extant equations.
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A review of efficiency of nitrogen utilisation in lactating dairy cows and its relationship with environmental pollution
TL;DR: In this paper, a review of the literature concerning nitrogen utilisation in lactating dairy cows with an emphasis on their contribution to environmental pollution is given and the effect of different types of carbohydrate and protein supplementation discussed.
Mitigation of greenhouse gas emissions in livestock production - A review of technical options for non-CO2 emissions
Alexander N. Hristov,Joonpyo Oh,C. Lee,Robert J. Meinen,F. Montes,Troy L. Ott,Jeffrey L. Firkins,A. Rotz,Curtis J. Dell,C. Adesogan,W.Z. Yang,J.M. Tricarico,Ermias Kebreab,G. Waghorn,Jan Dijkstra,S.J. Oosting +15 more
TL;DR: In this article, the potential of nutritional, manure and animal husbandry practices for mitigating methane (CH4) and nitrous oxide (N2O) emissions from livestock production was evaluated.
Journal ArticleDOI
The effect of protein supplementation on nitrogen utilization in lactating dairy cows fed grass silage diets.
TL;DR: It was demonstrated that a high efficiency of N utilization could be achieved on low-CP diets (supplying less than 400 g N/d), with feces being the main route of N excretion, whereas an exponential excretion of urinary N was observed as N intake exceeded 400 gN/d.