China Animal Husbandry and Veterinary Medicine ›› 2025, Vol. 52 ›› Issue (3): 1272-1280.doi: 10.16431/j.cnki.1671-7236.2025.03.029

• Preventive Veterinary Medicine • Previous Articles    

Analysis on Viral Pathogen Detection and Epidemic Characteristics of Calf Diarrhea in Some Large-scale Cattle Farms in Xinjiang

DING Ding1,2, DING Xiaojun1,2, MUSA Rehman3, ZHEN Jie1,2, SALAMAITI Srajiding1,2, LI Na1,2, SUN Yawei1,2, CHEN Rulong4, YAO Gang1,2, MA Xuelian1,2   

  1. 1. College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi 830052, China;
    2. Xinjiang Key Laboratory of New Drug Study and Creation for Herbivorous Animals, Urumqi 830052, China;
    3. Veterinary Station of Tarim Township, Shaya County, Aksu 842209, China;
    4. Urumqi County Agricultural Products Quality and Safety Inspection Centre, Urumqi 830052, China
  • Received:2024-05-07 Published:2025-02-22

Abstract: 【Objective】 This study was aimed to understand the current epidemiological dynamic status of main viral pathogens that cause calf diarrhea in some large-scale farms in 4 dominant cattle production areas in Xinjiang,so as to provide epidemiological investigation basis for formulating precise prevention and control measures.【Method】 In this experiment,367 diarrhoeic anal swab samples were collected from some large-scale farms in prefectures of Bole,Ili,Kashgar and Changji of Xinjiang,5 diarrhea causing viruses,namely,Bovine viral diarrhea virus (BVDV),Bovine norovirus (BNoV),Bovine rotavirus (BRV),Bovine nebovirus (BNeV) and Bovine coronavirus (BCV) were detected by using PCR with the analysis of the difference between seasons,areas and the calf breeds.【Result】 The results showed that BVDV had the highest detection rate of 26.7%.A total of 11 mixed infections were detected,including 5 kinds of double infection,mainly BVDV+BNoV mixed infection (11.4%).There were 5 kinds of triple infection,mainly BVDV+BRV+BNoV mixed infection (3.5%).The quadruple infection was only BVDV+BRV+BNoV+BNeV mixed infection (0.2%).The detection rates of BVDV,BRV and BNoV in spring and summer were significantly higher than those in autumn and winter (P<0.05),while the detection rates of BCV and BNeV were significantly lower than those in autumn and winter (P<0.05).Five pathogens were detected in both Ili and Changji regions,with the highest detection rate of BVDV (92.3%) in Ili region,followed by BNoV (52.7%).The detection rate of BNoV was the highest (19.5%) in Changji area,followed by BVDV (17.8%).The detection rate of BNeV in dairy calves was higher than that in beef calves (P<0.05),and BNoV infection was predominant in dairy calves (18.6%).Beef calves were mainly infected with BVDV (31.1%).【Conclusion】 It was concluded that there were significant seasonal,regional and breeds differences in the infection of 5 calf diarrheic causing viruses in Bole,Ili,Kashgar and Changji of Xinjiang.The result of this study provided a scientific basis for comprehensive prevention and treatment of calf diarrhea in Xinjiang.

Key words: calf diarrhea; viral pathogen; mixed infection; virus detection

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