Analysis of Microbiological and Parasitic Testing Results for Laboratory Animals in Jiangxi Province, 2020-2024

doi:10.12300/j.issn.1674-5817.2025.079

Abstract

Abstract:

Objective To assess the current status of microbial and parasitic quality control for laboratory animals in Jiangxi Province by analyzing microbiological and parasitic test results from production facilities between 2020 and 2024, and to provide a basis for enhancing quality control measures. Methods In accordance with the current national standards for laboratory animals at the time of testing, the Jiangxi Provincial Laboratory Animal Quality Inspection Station (affiliated to Institute of Occupational Medicine of Jiangxi) conducted microbial and parasitic testing on 451 laboratory animals of 4 species from 6 laboratory animal production units in Jiangxi Province between 2020 and 2024, and analyzed the quality status of laboratory animals in the province. Results Pasteurella pneumotropica was detected in one mouse sample in 2020, with a detection rate of 5.00%. Pseudomonas aeruginosa was detected in one mouse sample and mouse hepatitis virus antibody was detected in another mouse sample in 2023, with a detection rate of 2.78%, respectively. No microorganisms or parasites that should be excluded from SPF grade mice as specified in the national standards were detected in 2021, 2022, or 2024, with a qualification rate of 100.00%. Pasteurella pneumotropica was detected in four rat samples in 2020, with a detection rate of 20.00%. Pseudomonas aeruginosa was detected in two rat samples in 2021, with a detection rate of 10.00%, and Tyzzer's disease agent antibody was detected in four rat samples in 2024, with a detection rate of 10.00%. No microorganisms or parasites that should be excluded from SPF grade rats as specified in the national standards were detected in 2022 or 2023, with a qualification rate of 100.00%. For rabbits and guinea pigs, no microorganisms or parasites required to be tested for conventional grade rabbits and guinea pigs as specified in the national standards were detected from 2020 to 2024, with the qualification rate of both species reaching 100.00%. Conclusion Based on the microbial and parasitic testing results, the quality of rabbits and guinea pigs in Jiangxi Province is satisfactory. However, some issues persist with rats and mice. It is recommended to enhance the quality of experimental animals in Jiangxi Province by increasing the frequency of random inspections by quality testing units or by improving the self-inspection capabilities of production and user facilities.

Key words: Jiangxi Province, Laboratory animals, Quality testing, Microorganisms, Parasites

CLC Number:

Q95-33

XIAO Fangping,XIONG Lijuan,JIA Bo,et al. Analysis of Microbiological and Parasitic Testing Results for Laboratory Animals in Jiangxi Province, 2020-2024[J]. Laboratory Animal and Comparative Medicine, 2026, 46(1): 119-126. DOI: 10.12300/j.issn.1674-5817.2025.079.

Figures/Tables 4

References 48

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年份 Year	国家标准依据 National standard (GB) basis	被检单位数量 Number of inspected units	被检单位代号 Codes of the inspected units	被检动物数量/只 Number of tested laboratory animals
年份 Year	国家标准依据 National standard (GB) basis	被检单位数量 Number of inspected units	被检单位代号 Codes of the inspected units	小鼠 Mouse	大鼠 Rat	兔 Rabbit	豚鼠 Guinea pig
2020	参考文献[6-7]	3	a、b、c	20	20	10	NA
2021	参考文献[6-7]	4	a、b、c、d	20	20	10	10
2022	参考文献[6-7]	4	b、c、d、e	15	15	20	10
2023	参考文献[6-7]^▲；参考文献[8]^▽	4	b、c、d、e	36	30	30	20
2024	参考文献[8]	5	b、c、d、e、f	65	40	40	20
总计Total				156	125	110	60

年份 Year	国家标准依据 National standard (GB) basis	被检单位数量 Number of inspected units	被检单位代号 Codes of the inspected units	被检动物数量/只 Number of tested laboratory animals
年份 Year	国家标准依据 National standard (GB) basis	被检单位数量 Number of inspected units	被检单位代号 Codes of the inspected units	小鼠 Mouse	大鼠 Rat	兔 Rabbit	豚鼠 Guinea pig
2020	参考文献[6-7]	3	a、b、c	20	20	10	NA
2021	参考文献[6-7]	4	a、b、c、d	20	20	10	10
2022	参考文献[6-7]	4	b、c、d、e	15	15	20	10
2023	参考文献[6-7]^▲；参考文献[8]^▽	4	b、c、d、e	36	30	30	20
2024	参考文献[8]	5	b、c、d、e、f	65	40	40	20
总计Total				156	125	110	60