| Methane emissions from beef cattle: effects of fumaric acid, essential oil, and canola oil. | |
| | |
MedLine Citation:
|
PMID: 16699105 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The objective of this study was to identify feed additives that reduce enteric methane emissions from cattle. We measured methane emissions, total tract digestibility (using chromic oxide), and ruminal fermentation (4 h after feeding) in growing beef cattle fed a diet supplemented with various additives. The experiment was designed as a replicated 4 x 4 Latin square with 21-d periods and was conducted using 16 Angus heifers (initial BW of 260 +/- 32 kg). Treatments were: control (no additive), fumaric acid (175 g/d) with sodium bicarbonate (75 g/d), essential oil and spice extract (1 g/d), or canola oil (4.6% of DMI). The basal diet consisted of 75% whole-crop barley silage, 19% steam-rolled barley, and 6% supplement (DM basis). Four large chambers (2 animals fed the same diet per chamber) were equipped to measure methane emissions for 3 d each period. Adding canola oil to the diet decreased (P = 0.009) total daily methane emissions by 32% and tended (P = 0.09) to decrease methane emissions as a percentage of gross energy intake by 21%. However, much of the reduction in methane emissions was due to decreased (P < 0.05) feed intake and lower (P < 0.05) total tract digestibility of DM and fiber. Digestibility of all nutrients was also lowered (P < 0.05) by feeding essential oil, but there were no effects on ruminal fermentation or methane emissions. In contrast, adding fumaric acid to the diet increased total VFA concentration (P = 0.03), increased propionate proportions (P = 0.01), and decreased the acetate:propionate ratio (P = 0.002), but there was no measurable effect on methane emissions. The study demonstrates that canola oil can be used to reduce methane losses from cattle, but animal performance may be compromised due to lower feed intake and decreased fiber digestibility. Essential oils had no effect on methane emissions, whereas fumaric acid caused potentially beneficial changes in ruminal fermentation but no measurable reductions in methane emissions. |
| | |
Authors:
|
K A Beauchemin; S M McGinn |
Related Documents
:
|
18469065 - Influence of level of supplemental whole flaxseed on forage intake and site and extent ... 6495 - Effects of citrus pulp in high urea rations for steers. 4063295 - Quantitative effects of defaunation on rumen fermentation and digestion in sheep. 19079855 - Methods to study degradation of ruminant feeds. 4045955 - Survey on haemoglobin variants, beta thalassaemia, glucose-6-phosphate dehydrogenase de... 12401305 - Clinical implications of changes in the modern diet: iron intake, absorption and status. |
Publication Detail:
|
Type: Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Journal of animal science Volume: 84 ISSN: 1525-3163 ISO Abbreviation: J. Anim. Sci. Publication Date: 2006 Jun |
Date Detail:
|
Created Date: 2006-05-15 Completed Date: 2006-10-10 Revised Date: 2008-11-21 |
Medline Journal Info:
|
Nlm Unique ID: 8003002 Medline TA: J Anim Sci Country: United States |
Other Details:
|
Languages: eng Pagination: 1489-96 Citation Subset: IM |
Affiliation:
|
Agriculture and Agri-Food Canada, Research Centre, Box 3000, Lethbridge, Alberta, Canada. beauchemin@agr.gc.ca |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Animal Feed Animal Nutritional Physiological Phenomena Animals Cattle / metabolism* Diet Digestion / drug effects, physiology Fatty Acids, Monounsaturated / metabolism, pharmacology* Female Fermentation Fumarates / metabolism, pharmacology* Methane / biosynthesis* Oils, Volatile / metabolism, pharmacology* |
| Chemical | |
Reg. No./Substance:
|
0/Fatty Acids, Monounsaturated; 0/Fumarates; 0/Oils, Volatile; 110-17-8/fumaric acid; 120962-03-0/canola oil; 74-82-8/Methane |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Effects of 25-hydroxyvitamin D3 and manipulated dietary cation-anion difference on the tenderness of...
Next Document: Effects of energy level on methionine utilization by growing steers.