Value chain analysis of yellow broiler industry in Guangxi, China to inform H7N9 influenza control strategies

Tang, Hao; Shen, Chaojian; Zou, Lianbin; Cai, Chang; Edwards, John; Bruce, Mieghan; Wang, Youming; Robertson, Ian D.; Huang, Biao

doi:10.1016/j.prevetmed.2021.105328

Cited by 11 publications

(14 citation statements)

References 26 publications

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“…These findings were based on the 2017 data and cannot be extrapolated to other years. A sudden increase of H7N9 human infections in early 2017 and the launch of the compulsory poultry vaccination against H7N9 in July 2017 may have contributed to changes in the demand for live poultry (Liu et al., 2020; Tang et al., 2021; Zhou et al., 2017). To better understand Guangxi's broiler movement patterns, longitudinal analyses are required to investigate long‐term changes in movements and determine if there are seasonal patterns over multiple years.…”

Section: Discussionmentioning

confidence: 99%

“…However, the analysis of official movement data still generates unique evidence on movement patterns that other data sources cannot provide due to the trade volume. As a complement to movement analysis, value chain studies are also needed, which could show how the local industry stakeholders do business through formal and informal channels (Tang et al., 2021).…”

Section: Discussionmentioning

confidence: 99%

“…Guangxi accounted for 6.7% of the national broiler production in 2017 (MARA China, 2017). More than 90% of broilers produced in Guangxi were yellow broilers, a type of Chinese indigenous chickens used for meat production, with the majority traded through LBMs (Jia et al., 2015; Tang, Shen, Zou, Cai, Edwards, et al., 2021). Additionally, live chickens from Guangxi were traded to several other provinces of China, including Guangdong, Hunan, Yunnan and the neighbouring country Vietnam, which could further spread the viruses through the trading networks if the AIVs emerged (Desvaux et al., 2016; Martin et al., 2011; Soares Magalhaes et al., 2012).…”

Section: Methodsmentioning

confidence: 99%

“…Broilers contribute to more than 80% of live poultry production in Guangxi (Guangxi Statistical Bureau, 2018) and are a primary source of birds for LBMs (China Poultry Industry Association, 2010). Additionally, Guangxi's broiler industry has a unique production and trading system compared to other poultry sectors; about 90% broilers are traded through LBMs (Jia et al., 2015; Tang et al., 2021). Being the sixth largest broiler production province in China, Guangxi faces severe challenges in controlling zoonotic H7N9 and other AIVs subtypes (FAO, 2019; MARA China, 2017; Peng et al., 2013).…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the movement of live broilers in Guangxi, China and implications for avian influenza control

Tang

Fournié

et al. 2021

Transbounding Emerging Dis

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Most Chinese provinces have a daily‐updated database of live animal movements; however, the data are not efficiently utilized to support interventions to control H7N9 and other avian influenzas. Based on official records, this study assessed the spatio‐temporal patterns of live broilers moved out of and within Guangxi in 2017. The yearly and monthly networks were analyzed for inter‐ and intra‐provincial movements, respectively. Approximately 200,000 movements occurred in 2017, involving the transport of 200 million live broilers from Guangxi. Although Guangxi exported to 24 out of 32 provinces of China, 95% of inter‐provincial movements occurred with three bordering provinces. Within Guangxi, counties were highly connected through the live broiler movements, creating conditions for rapid virus spreading throughout the province. Interestingly, a peak in movements during the Chinese Lunar New Year celebrations, late January in 2017, was not observed in this study, likely due to H7N9‐related control measures constraining live bird trading. Both intra‐ and inter‐provincial movements in March 2017 were significantly higher than in other months of that year, suggesting that dramatic price changes may influence the movement's network and reshape the risk pathways. However, despite these variations, the same small proportion of counties (less than 20%) exporting/importing more than 90% of inter‐ and intra‐provincial movements remains the same throughout the year. Interventions, particularly surveillance and improving biosecurity, targeted to those counties are thus likely to be more effective for avian influenza risk mitigation than implemented indiscriminately. Additionally, simulations further demonstrated that targeting counties according to their degree or betweenness in the movement network would be the most efficient way to limit disease transmission via broiler movements. The study findings provide evidence to support the design of risk‐based control interventions for H7N9 and all other avian influenza viruses in broiler value chains in Guangxi.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of the movement of live broilers in Guangxi, China and implications for avian influenza control

Tang

Fournié

et al. 2021

Transbounding Emerging Dis

Self Cite

View full text Add to dashboard Cite

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“…As described in a value chain study on the yellow broiler industry in Guangxi (Tang et al., 2021), farmers and grower companies are responsible for implementing vaccination. Official veterinarians at the county and township levels are responsible for delivering government‐provided vaccines and conducting post‐vaccination monitoring with village para‐veterinarians’ assistance.…”

Section: Methodsmentioning

confidence: 99%

A mixed methods study of stakeholders’ practices and attitudes on avian influenza H7N9 vaccination for the yellow broiler industry in Guangxi, China

Tang

Shen

Zou

et al. 2021

Transbounding Emerging Dis

Self Cite

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In response to a sudden increase in H7N9 human infections, China introduced an H5/H7 bivalent inactivated vaccine for poultry in Guangxi and Guangdong provinces in July 2017, which subsequently became integrated into the existing compulsory national H5N1 vaccination programme from September 2017. Although the vaccination programme effectively reduced H7N9 infections in humans and poultry, there are ongoing arguments against continuing this long-term vaccination. These discussions have drawn policymakers to think about the possibility of stopping routine vaccination for H7N9 avian influenza viruses (AIVs) in China; however, they have not considered the poultry industry stakeholders' practices on and attitudes towards this vaccination. This study investigated H7N9 vaccination practices in the yellow broiler industry in Guangxi and stakeholders' attitudes on H7N9 vaccination, using a mixed methods design. The study found H7N9 vaccination was well adopted in the yellow broiler industry in Guangxi regardless of the source of the vaccines. Most stakeholders believed vaccination was the best measure to control H7N9 and H5N1 AIVs, and they showed a strong willingness to continue with vaccination even without government subsidies or freely provided vaccines. The motivations by stakeholders for using vaccines to control H7N9 and H5N1 were different due to the epidemiological differences between the two strains. Understanding poultry industry stakeholders' practices and attitudes on H7N9 vaccination has important practical implications in planning vaccination policies, particularly when considering the possibility of vaccination withdrawal.

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A strategic approach to safeguard global supply chains against COVID‐19 disruptions

Mzougui

Carpitella

Certa

et al. 2023

Math Methods in App Sciences

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The global system of supply chains has been dramatically disrupted over the last years due to the outbreak of the COVID‐19 pandemic. In these current challenging times, this paper proposes a methodological approach for managing dependence and uncertainty in dynamic industrial scenarios. A detailed study of epidemic effects is carried out according to an operational management‐based perspective. We proceed by analyzing connections among effects and risks potentially leading to significant supply chain disturbances through a multicriteria approach. Risks and effects are weighted by applying the Analytic Network Process (ANP). Weighted risks are then assumed as criteria for selecting the most suitable contingency strategy. To this aim, the Fuzzy Technique for Order of Preference by Similarity to Ideal Solution (FTOPSIS) is able to rank a set of strategies by addressing and quantifying uncertainty. A case study on the sector of the automotive industry is implemented to validate the proposed methodological approach.

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Value chain analysis of yellow broiler industry in Guangxi, China to inform H7N9 influenza control strategies

Cited by 11 publications

References 26 publications

Analysis of the movement of live broilers in Guangxi, China and implications for avian influenza control

Analysis of the movement of live broilers in Guangxi, China and implications for avian influenza control

A mixed methods study of stakeholders’ practices and attitudes on avian influenza H7N9 vaccination for the yellow broiler industry in Guangxi, China

A strategic approach to safeguard global supply chains against COVID‐19 disruptions

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