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Journal article
Risk factors associated with Salmonella in dairy cattle farms in Henan and Hubei provinces, China
Animal diseases, Vol.3(1), 20
2023
Abstract
A cross-sectional study was conducted to evaluate the risk factors associated with the Salmonella infection status of dairy herds in Henan and Hubei provinces, China. Herds were assigned a Salmonella status based on the isolation of Salmonella from fecal samples obtained from adult lactating dairy cows. Information on potential biosecurity risk factors was collected using a questionnaire template via a 15-min face-to-face interview with dairy cattle producers from May 2020 to March 2021. The questionnaire consisted of 23 questions across two broad categories of potential biosecurity risk factors: farm and biosecurity managemental factors. A total of 48 farms were surveyed. In all (100%, 48/48) of the surveyed farms, although sick animals were separated from healthy animals using fencing, there were no strict quarantine protocols for newly introduced animals. Mixed species rearing was practiced in 35.4% (17/48) of the farms. Feces were removed more than once a day in 45.8% (22/48) of the farms, whereas the remainder (54.2%, 26/48) only removed animal feces once a day. A total of 29.2% (14/48) of the farms were located < 2 km from other livestock farms. The use of personal protective equipment was consistently performed on all farms, with a majority of the workers on most farms (81.3%, 39/48) always disinfecting footwear before entering production areas. A significant association between Salmonella-positive status and the high frequency of the presence of wildlife (birds and rodents in sheds and feed storage places) was recorded (OR: 11.9, 95% CI: 1.7, 84.1, p = 0.013). Fortunately, no farms shared farm equipment with other farms. The study highlights the occurrence of wildlife as a risk factor for the presence of Salmonella in investigated dairy herds. There is a need to institute appropriate on-farm control measures for wild birds and rodents to control the potential spread of Salmonella in dairy production systems.
Details
- Title
- Risk factors associated with Salmonella in dairy cattle farms in Henan and Hubei provinces, China
- Authors/Creators
- Jie Wang - Murdoch UniversityXiaojie Zhu - Huazhong Agricultural UniversityYuxi Zhao - Huazhong Agricultural UniversityYongkang Xue - Henan Dairy Herd Improvement CenterZhen Zhang - Henan Dairy Herd Improvement CenterLei Yan - Henan Dairy Herd Improvement CenterYingyu Chen - Huazhong Agricultural UniversityIan D. Robertson - The State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, School of Veterinary Medicine, College of Science, Health, Engineering and Education, Murdoch University, Hubei International Scientific and Technological Cooperation Base of Veterinary Epidemiology, Huazhong Agricultural UniversityAizhen Guo - Huazhong Agricultural UniversityJoshua W. Aleri - Murdoch University, Centre for Animal Production and Health
- Publication Details
- Animal diseases, Vol.3(1), 20
- Publisher
- Springer Nature Singapore
- Grant note
- #CARS-37 / the earmarked fund for China Agricultural Research System (Beef/Yaks) 2021CFA016 / the Natural Science Foundation of Hubei Province
- Identifiers
- 991005593753407891
- Copyright
- © 2023 The Author(s).
- Murdoch Affiliation
- Centre for Animal Production and Health; School of Veterinary Medicine
- Language
- English
- Resource Type
- Journal article
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