Next Article in Journal
A Land Systems Science Framework for Bridging Land System Architecture and Landscape Ecology: A Case Study from the Southern High Plains
Previous Article in Journal
Spatial Modeling of Soil Erosion Risk and Its Implication for Conservation Planning: the Case of the Gobele Watershed, East Hararghe Zone, Ethiopia
Article Menu
Issue 1 (March) cover image

Export Article

Open AccessFeature PaperArticle
Land 2018, 7(1), 26; doi:10.3390/land7010026

Effect of Feeding System on Enteric Methane Emissions from Individual Dairy Cows on Commercial Farms

School of Biosciences, Sutton Bonington Campus, The University of Nottingham, Loughborough LE12 5RD, UK
*
Author to whom correspondence should be addressed.
Received: 17 January 2018 / Revised: 19 February 2018 / Accepted: 21 February 2018 / Published: 24 February 2018
View Full-Text   |   Download PDF [218 KB, uploaded 24 February 2018]

Abstract

This study investigated the effects of feeding system on diurnal enteric methane (CH4) emissions from individual cows on commercial farms. Data were obtained from 830 cows across 12 farms, and data collated included production records, CH4 measurements (in the breath of cows using CH4 analysers at robotic milking stations for at least seven days) and diet composition. Cows received either a partial mixed ration (PMR) or a PMR with grazing. A linear mixed model was used to describe variation in CH4 emissions per individual cow and assess the effect of feeding system. Methane emissions followed a consistent diurnal pattern across both feeding systems, with emissions lowest between 05:00 and 08:59, and with a peak concentration between 17:00 and 20:59. No overall difference in emissions was found between feeding systems studied; however, differences were found in the diurnal pattern of CH4 emissions between feeding systems. The response in emissions to increasing dry matter intake was higher for cows fed PMR with grazing. This study showed that repeated spot measurements of CH4 emissions whilst cows are milked can be used to assess the effects of feeding system and potentially benchmark farms on level of emissions. View Full-Text
Keywords: cattle; greenhouse gas; measurements; diet; variation cattle; greenhouse gas; measurements; diet; variation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Eckert, M.; Bell, M.; Potterton, S.; Craigon, J.; Saunders, N.; Wilcox, R.; Hunter, M.; Goodman, J.; Garnsworthy, P. Effect of Feeding System on Enteric Methane Emissions from Individual Dairy Cows on Commercial Farms. Land 2018, 7, 26.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Land EISSN 2073-445X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top