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In vitro screening of temperate climate forages from a variety of woody plants for their potential to mitigate ruminal methane and ammonia formation

Terranova, M; Kreuzer, Michael; Braun, Ueli; Schwarm, Angela (2018). In vitro screening of temperate climate forages from a variety of woody plants for their potential to mitigate ruminal methane and ammonia formation. Journal of Agricultural Science, 156(7):929-941.

Abstract

Feeding phenol-containing plants to ruminants has the potential to mitigate both methane and ammonia formation. In the present study, mostly woody plants, such as the leaves of trees and shrubs, were tested for their influence on <jats:italic>in vitro</jats:italic> fermentation. The plants selected grow naturally under temperate climatic conditions, are usually available in bulk and do not directly compete with human food production. The detailed screening included whole plants or parts of different plant species reporting their effects on methane and/or ammonia formation. The plant materials were added at 167 mg/g of total dry matter (DM) to a common total mixed ration and incubated for 24 h with the Hohenheim gas test method. The results from <jats:italic>in vitro</jats:italic> fermentation were also used to determine the net energy of lactation and utilizable crude protein in the complete diets. Thirteen out of 18 test materials did not impair the organic matter (OM) digestibility of the diet. Ammonia concentrations decreased up to 35% when adding any of the test materials. Methane formation per unit of feed DM and per unit of digestible OM was lowered by 13 of the 18 test materials from 12 to 28% and 5 to 20%, respectively. In conclusion, a number of plant materials tested have the potential to mitigate ruminal ammonia and methane formation without adversely affecting digestibility. The leaves of <jats:italic>Betula pendula</jats:italic>, <jats:italic>Corylus avellana</jats:italic>, <jats:italic>Ribes nigrum</jats:italic>, <jats:italic>Vitis vinifera</jats:italic> and the aerial part of <jats:italic>Geum urbanum</jats:italic> were particularly promising in this respect.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Department of Farm Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Scopus Subject Areas:Life Sciences > Animal Science and Zoology
Life Sciences > Agronomy and Crop Science
Life Sciences > Genetics
Uncontrolled Keywords:Agronomy and Crop Science, Animal Science and Zoology, Genetics
Language:English
Date:1 September 2018
Deposited On:15 Jan 2019 11:16
Last Modified:20 Oct 2024 01:38
Publisher:Cambridge University Press
ISSN:1469-5146
OA Status:Closed
Publisher DOI:https://doi.org/10.1017/s0021859618000989

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