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Impact of pig housing on greenhouse gas emissions : Influencing factors and mitigation strategies
Authors: Fran?ois-Xavier Philippe, St?phane Godbout
Identifier: CSBE21325
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Published in: CSBE-SCGAB Technical Conferences » 5th CIGR and AGM Quebec City 2021 » 4th international Symposium on Gas Emissions and Dust from Livestock (EMILI)
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Description: Livestock production is frequently pointed out for its deleterious effects on the environment and especially on greenhouse gas emissions, so that some advocates a reduction in meat consumption. However, global meat production is expected to grow in the next few decades. Thus, livestock production is at the heart of major societal challenges. This paper aims to focus on the impact of rearing conditions on greenhouse gas emissions associated with pig and poultry industry. GHG emissions originate from animals through CO2 exhalation and CH4 enteric fermentation, and from manure through the release of CO2, CH4 and N2O. The level of the CO2 exhalation depends on the species, the physiological stage, the body weight, the production level and the feed intake of the animals concerned. Enteric CH4 is principally related to dietary fibre intake and the fermentative capacity of the digestive tract. Production of GHG from manure depends on microbial, physical and chemical properties that interact with each other and modulate the level of emissions. Influencing factors for removal systems for both liquid and solid fractions of manure have been investigated. A large range of parameters show an impact on the level of GHG production from livestock houses. However, few of these can be considered unquestionably as GHG mitigation techniques because some strategies have shown contradictory effects depending on the gas, the circumstances and the study. A comprehensive assessment of the whole production chain has to be carried out for each producion system.
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Date: 2021-06-11
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Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: 4th international Symposium on Gas Emissions and Dust from Livestock (EMILI) 3 - Mitigation Strategies
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Type: Text.Abstract
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Publication type: Presentation
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Coverage: Belgium
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
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Other files:
DOI:
Description: Livestock production is frequently pointed out for its deleterious effects on the environment and especially on greenhouse gas emissions, so that some advocates a reduction in meat consumption. However, global meat production is expected to grow in the next few decades. Thus, livestock production is at the heart of major societal challenges. This paper aims to focus on the impact of rearing conditions on greenhouse gas emissions associated with pig and poultry industry. GHG emissions originate from animals through CO2 exhalation and CH4 enteric fermentation, and from manure through the release of CO2, CH4 and N2O. The level of the CO2 exhalation depends on the species, the physiological stage, the body weight, the production level and the feed intake of the animals concerned. Enteric CH4 is principally related to dietary fibre intake and the fermentative capacity of the digestive tract. Production of GHG from manure depends on microbial, physical and chemical properties that interact with each other and modulate the level of emissions. Influencing factors for removal systems for both liquid and solid fractions of manure have been investigated. A large range of parameters show an impact on the level of GHG production from livestock houses. However, few of these can be considered unquestionably as GHG mitigation techniques because some strategies have shown contradictory effects depending on the gas, the circumstances and the study. A comprehensive assessment of the whole production chain has to be carried out for each producion system.
Keywords:
Résumé:
Mots-clés:
Citation:
Volume:
Issue:
Pages -
Contributor:
Date: 2021-06-11
Technical field:
Conference name: 5th CIGR International Conference and CSBE-SCGAB AGM 2021, Quebec City,QC, 11-14 May 2021.
Session name: 4th international Symposium on Gas Emissions and Dust from Livestock (EMILI) 3 - Mitigation Strategies
Other information:
Type: Text.Abstract
Format:
Publication type: Presentation
Source:
Relation:
Coverage: Belgium
Language 1: en
Language 2:
Rights: Canadian Society for Bioengineering
Notes:
Other files:
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