Abstract: Objective　To analyze the nutrient components of SPF-grade rodent growth and reproduction feeds.Methods　Five types of SPF-grade rodent growth and reproduction feeds were sampled and submitted for testing of conventional nutritional components indicators, amino acids indicators, vitamins indicators, as well as macro-minerals and trace minerals.Results　The conventional nutrient components indicators of the five feeds complied with GB 14924.3—2010 standards. However, when compared with the reference ranges, deficiencies were identified in amino acid and vitamin indicators across five feeds. Only one feed met the GB 14924.3—2010 requirements for macro-minerals and trace minerals, while the remaining four feeds exhibited non-compliant indicators.Conclusion　The nutrient components of five SPF-grade rodent growth and reproduction feeds showed varying degrees of deviation from the standards, indicating the need for enhanced management and quality monitoring during production and use links to meet the nutritional requirements of laboratory animals.

Key words: animal feed, nutrient components, sampling analysis

摘要： 目的　分析SPF级大小鼠生长繁殖饲料营养成分含量。方法　将5种SPF级大小鼠生长繁殖饲料取样后, 送检常规营养成分指标、氨基酸指标、维生素指标及常量矿物质和微量矿物质指标。结果　5种饲料的常规营养成 分指标符合GB 14924.3—2010规定;与判定值范围比较,5种饲料氨基酸指标和维生素指标均出现不合格项;常量 矿物质和微量矿物质指标检测结果仅有一种饲料符合GB14924.3—2010规定,其他4种饲料均出现不合格项。 结论　5种SPF级大小鼠生长繁殖饲料的部分营养成分与标准存在不同程度的差异,提示SPF级大小鼠饲料在生 产和使用环节中应加强管理和质量监测,以满足实验动物营养需求。

关键词: 动物饲料, 营养成分, 抽样分析