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# A TOOL FOR THE COMPARISON OF EMISSION FACTORS OF PIG AND POULTRY HOUSING

N.GUINGAND(*), IFIP-Institut technique du porc, France – E.CARON, Itavi, France – M.HASSOUNA, INRAE umr sas, France

Contacts : nadine.guingand@ifip.asso.fr

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Poster n°87

## Context

* Numerous research teams work on emissions but with various aims : methodology, emission factors (EF), mitigation techniques....

* Comparison of data available in the literature is often difficult

* EF are expressed in **several** unit of expression

* The **lack of data** (rearing conditions, protocol, measurement duration...) do not always permit to convert into reference units used by international structures as EMEP or IPCC

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## Methodology

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## Results for pig

2 116 emissions factors extracted from 291 articles published in 22 countries

<figure><img src="image_5.png" /><figcaption>Repartition of data per gas for pig housing</figcaption></figure>

82% of emission factors concern fattening pig vs 9% for sows and post-weaning piglets

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## Results for poultry

1 027 emissions factors extracted from 87 articles published in 18 countries

<figure><img src="image_7.png" /><figcaption>Repartition of data per gas for poultry housing</figcaption></figure>

52% of emission factors concern broilers vs 46% for laying hens and 3% for turkeys and ducks

**To know more** : Vigan A., Hassouna M., Guingand N., Brame C., Edouard N., Eglin T., Espagnol S., Eugène M., Génermont S., Lagadec S., Lorinquer E., Loyon L., Ponchant P., Robin P. 2019, Development of a database to collect emission values for livestock systems. J.Environ. Qual. 48 : 1899-1906 -doi : 10.2134/jeq2019.01.0007

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ifip
Institut du porc

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ITAVI

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With the financial support of

Avec la contribution financière du compte d'affectation spéciale développement agricole et rural CASDAR

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MINISTÈRE
DE L'AGRICULTURE
ET DE LA SOUVERAINETÉ
ALIMENTAIRE

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