| View Larger Image | Effects of stocking rate on methane and carbon dioxide emissions from grazing cattle [An article from: Agriculture, Ecosystems and Environment] | Digitalby C.S. Pinares-Patino (Author), P. D'Hour (Author), J.P. Jouany (Author), Marti (Author)
| List Price: | $10.95 | | | Available: | Available for download now |
| | Binding: | Digital | | Publisher: | Elsevier | | Publication Date: | June 01, 2007 |
|
EDITORIAL REVIEWS |
Product Description
This digital document is a journal article from Agriculture, Ecosystems and Environment, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: Pastoral farming contributes significantly to total agricultural emissions of greenhouse gases, and stocking rate is the simplest grassland management decision. A study was conducted during the 2002 and 2003 grazing seasons on a semi-natural grassland in the French Massif Central in order to measure enteric methane (CH"4) and total carbon dioxide (CO"2) emissions from Holstein-Friesian heifers (initial liveweight (LW) 455+/-29 and 451+/-28kg in 2002 and 2003, respectively) managed at low (LSR) and high (HSR) stocking rates (1.1LUha^-^1 versus 2.2LUha^-^1, respectively) under a continuous grazing system. Measurements took place in late spring, mid summer, late summer and early autumn. Daily CH"4 and CO"2 emissions by individual heifers were measured during 7 consecutive days in each period using the sulphur hexafluoride (SF"6) tracer technique. In both grazing seasons, the herbage in the LSR system had higher mass (HM) than in the HSR system, especially in mid and late summer. In both grazing seasons, herbages offered in the LSR system were of lower quality than those in the HSR system, and consequently feed organic matter (OM) digestibilities (OMD) and intakes (OMI) in the LSR system were lower (P |
|
![Effects of stocking rate on methane and carbon dioxide emissions from grazing cattle [An article from: Agriculture, Ecosystems and Environment]](http://ecx.images-amazon.com/images/I/510R7TTQD4L._SL160_.jpg)
