Quantitative assessment of enteric methane emission and nitrogen excretion by equines

W. Martin-Rosset; M. Vermorel; G. Fleurance

Quantitative assessment of enteric methane emission and nitrogen excretion by equines

In: Forages and grazing in horse nutrition

Authors:

W. Martin-Rosset

W. Martin-Rosset ¹INRA Department Physiology and Livestock Sciences, Centre of research of Clermont-Ferrand/ Theix, 63122 Saint Genes Champanelle, France; wrosset@clermont.inra.fr

Search for other papers by W. Martin-Rosset in
Current site
Google Scholar
PubMed

M. Vermorel

M. Vermorel ¹INRA Department Physiology and Livestock Sciences, Centre of research of Clermont-Ferrand/ Theix, 63122 Saint Genes Champanelle, France; wrosset@clermont.inra.fr

Search for other papers by M. Vermorel in
Current site
Google Scholar
PubMed

, and

G. Fleurance

G. Fleurance ¹INRA Department Physiology and Livestock Sciences, Centre of research of Clermont-Ferrand/ Theix, 63122 Saint Genes Champanelle, France; wrosset@clermont.inra.fr
²IFCE, Direction des connaissances et de l’Innovation, Terrefort, BP 207, 49411 Saumur, France

Search for other papers by G. Fleurance in
Current site
Google Scholar
PubMed

Type:: Chapter

Pages:: 485–492

DOI:: https://doi.org/10.3920/9789086867554_068

Purchase instant access (PDF download and unlimited online access):

€42.00€35.00 excl. VAT

Add to Cart

Redeem Access Token

In France enteric methane emission (CH₄) in horses have been assessed using the net energy requirements of equines expressed in feed units (UFC) and converted to Digestible Energy (DE) intake using prediction equations from the UFC system. Methane emissions were then calculated from DE intake using a prediction equation of methane expressed in percent of DE intake (ECH₄ % DE). Emissions of methane have been assessed for the different categories of equines in respect of their physiological status and the main types of diets at through or grazing using UFC recommended allowances form INRA, 1990 and average composition of diets used in France. Methane emissions averaged 20.7 kg/animal/year whatever the type of equines but the highest value was 29.4 kg for heavy mare reaching 34% of the emission estimated of a beef cow. Models of prediction of N excretion in faeces and urine of equines have been established from experimental data obtained when measuring digestibility by total collection of faeces and urine and nitrogen balance experiments carried out at INRA. Models for prediction of N faecal or urinary excretion used both N intake as a predictor: R₂=0.866 and 0.716 respectively. But reliability and accuracy of N Urinary excretion were improved when using DM intake and N content of diets as predictors (R₂=0.824). Annual total N excretion in faeces and urine for a 500 kg BW adult horse at maintenance would amount to 238 kg CP/animal that is to say 38 N units of which about 50% would be supplied by faeces and 50% by urine Assessment of total N excretion of the different categories of equines is in progress. Horse and ponies will be evaluated in respect of physiological status and diets for the French population as for methane emission.

Citation Info

Save
Cite
Email this content

Share link with colleague or librarian

You can email a link to this page to a colleague or librarian:
Email this content
or copy the link directly:

https://brill.edhh.ma/abstract/book/9789086867554/BP000068.xml
The link was not copied. Your current browser may not support copying via this button.

Link copied successfully

Collapse
Expand

Forages and grazing in horse nutrition

Series: EAAP Scientific Series, Volume: 132

E-Book ISBN:: 9789086867554

Publisher:: Wageningen Academic

Print Publication Date:: 01 Nov 2012

Subjects
- Life Sciences
  - General
  - Animal & Veterinary

Metrics

	All Time	Past 365 days	Past 30 Days
Abstract Views	92	30	3
Full Text Views	10	3	0
PDF Views & Downloads	12	4	0

African Studies	Education	Media Studies
American Studies	History	Middle East and Islamic Studies
Ancient Near East and Egypt	Human Rights and Humanitarian Law	Musicology
Art History	International Law	Philosophy
Asian Studies	International Relations	Religious Studies
Biblical Studies	Jewish Studies	Slavic and Eurasian Studies
Biology	Languages and Linguistics	Social Sciences
Book History and Cartography	Life Sciences	Theology and World Christianity
Classical Studies	Literature and Cultural Studies

Subjects

Authors

Open Access

Product Information

Company

Contact

Quantitative assessment of enteric methane emission and nitrogen excretion by equines

Citation Info

Share link with colleague or librarian

Forages and grazing in horse nutrition

Table of Contents

Metrics

Metrics