Estimating farm-gate ammonia emissions from major animal production systems in China

Gao, Zhiling; Ma, Wenqi; Zhu, Gaodi; Roelcke, Marco

doi:10.1016/j.atmosenv.2013.06.025

Cited by 23 publications

(9 citation statements)

References 14 publications

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“…agricultural emissions of ammonia (NH 3 ) (Gao et al, 2013), N 2 O and methane (CH 4 ), and phosphorus (P). Key parameters required by inventories and nutrient balances are the total N, total P and ammonium-N content of the manures applied to land.…”

Section: Introductionmentioning

confidence: 99%

Improving manure nutrient management towards sustainable agricultural intensification in China

Chadwick

Jia

Tong

et al. 2015

Agriculture, Ecosystems & Environment

283

154

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Section: Introductionmentioning

confidence: 99%

Improving manure nutrient management towards sustainable agricultural intensification in China

Chadwick

Jia

Tong

et al. 2015

Agriculture, Ecosystems & Environment

283

154

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“…It is produced through the decomposition of animal droppings in the presence of microorganisms under heat and moisture. Even though the recommended maximum level is 25 mL m -3 (Kristensen and *Corresponding author (email: zhanghongfu@caas.cn) Wathes, 2000), birds used to be exposed in high concentration of ammonia because of poor maintenance on the part of large producers, especially during winter when ventilation is minimal (Gao et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Differential expression analysis of the broiler tracheal proteins responsible for the immune response and muscle contraction induced by high concentration of ammonia using iTRAQ-coupled 2D LC-MS/MS

Xiong

Tang

Meng

et al. 2016

Sci. China Life Sci.

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Ammonia has been considered the contaminant primarily responsible for respiratory disease in poultry. Even though it can cause tracheal lesions, its adverse effects on the trachea have not been sufficiently studied. The present study investigated tracheal changes in Arbor Acres broilers (Gallus gallus) induced by high concentration of ammonia using isobaric tag for relative and absolute quantification (iTRAQ)-based proteome analysis. In total, 3,706 proteins within false discovery rate of 1% were identified, including 119 significantly differentially expressed proteins. Functional analysis revealed that proteins related to immune response and muscle contraction were significantly enriched. With respect to the immune response, up-regulated proteins (like FGA) were pro-inflammatory, while down-regulated proteins participated in antigen processing and antigen presenting (like MYO1G), immunoglobulin and cathelicidin production (like fowlicidin-2), and immunodeficiency (like PTPRC). Regarding muscle contraction, all differentially expressed proteins (like TPM1) were up-regulated. An over-expression of mucin, which is a common feature of airway disease, was also observed. Additionally, the transcriptional alterations of 6 selected proteins were analyzed by quantitative RT-PCR. Overall, proteomic changes suggested the onset of airway obstruction and diminished host defense in trachea after ammonia exposure. These results may serve as a valuable reference for future interventions against ammonia toxicity. ammonia, broiler, proteomics, trachea Citation:Xiong, Y., Tang, X., Meng, Q., and Zhang, H. (2016). Differential expression analysis of the broiler tracheal proteins responsible for the immune response and muscle contraction induced by high concentration of ammonia using iTRAQ-coupled 2D

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“…The results were confirmed by Macleod et al (2013), who found in developing regions less emission intensity (5.5-6.9 kg CO 2 -eq/kg CW) for the backyard system than for the intermediate and industry systems. In China, animal farming is a significant source of GHG emissions into the atmosphere owing to the large number of pigs and the great emissions of NH 3 (ammonia) and N 2 O in the environment (Gao et al, 2013). In a different study, Mottet et al (2016) pointed out that pig production has increased in China in the last three decades, mostly in the intermediate and industrial systems, and now accounts for 30% and 40% of total production, respectively, of the entire east and southeast region.…”

Section: Pigsmentioning

confidence: 99%

Methane, nitrous oxide emissions and mitigation strategies for livestock in developing countries: A review

Forabosco¹,

Chitchyan²,

Mantovani³

2017

SA J. An. Sci.

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Methane (CH 4 ) and nitrous oxide (N 2 O) are two important greenhouse gases (GHGs) that are emitted into the atmosphere by livestock during the process of enteric fermentation and manure management. Developing countries produce a large quantity of those emissions, caused mainly by inefficient animal rearing systems, feed production and manure management. This paper outlines the CH 4 and N 2 O emitted from livestock in developing countries and the mitigation actions that could be put in place to reduce atmospheric emissions and increase animal productivity. Emission intensity expresses emission (CO 2 equivalents) per unit of product and describes it in relation to the capacity of local animals to produce from local resources. Developing countries are characterized by low production per animal and, consequently, high emission intensity. The emission intensity of dairy cattle in developing countries ranges from 2 to 9 kg CO 2 -eq/kg fat and protein corrected milk (FPCM) and in only a few cases is below 2 kg CO 2 -eq/kg FPCM. In sub-Saharan Africa, the average emission intensity is 7.5 kg CO 2 -eq/kg FPCM for dairy cattle, 71 kg CO 2 -eq/kg of carcass weight for beef cattle, 6.9 kg CO 2 -eq/kg FPCM for sheep and goats, and 5 kg CO 2 -eq/kg eggs for chickens. Taking into account the limited economic and technical resources in most developing countries, the application of appropriate mitigation tools is recommended to reduce the emissions of CH 4 and N 2 O gases in the atmosphere. Increasing livestock productivity through selection and feeding is the most effective tool to reduce emission intensity. ______________________________________________________________________________________

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Estimating farm-gate ammonia emissions from major animal production systems in China

Cited by 23 publications

References 14 publications

Improving manure nutrient management towards sustainable agricultural intensification in China

Improving manure nutrient management towards sustainable agricultural intensification in China

Differential expression analysis of the broiler tracheal proteins responsible for the immune response and muscle contraction induced by high concentration of ammonia using iTRAQ-coupled 2D LC-MS/MS

Methane, nitrous oxide emissions and mitigation strategies for livestock in developing countries: A review

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