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在温度和湿度的可变条件下长期储存天然成分饮食
Kristine Towns1, Aidan Horvath1, Amanda Darbyshire1
1Laboratory Animal Program, Purdue University, West Lafayette, Indiana.
概括
料在营养上保持稳定,并安全供动物食用,即使在标准参数之外的条件下储存. 这种评估对于那些面临维护理想料储存环境的挑战的机构来说至关重要.
科学领域:
- 实验室动物科学 动物科学
- 动物营养动物营养
- 设施管理设施管理.
背景情况:
- 老化的机构建筑物往往难以保持用于料储存的恒定温度和湿度.
- 不一致的环境条件可能会损害料质量,并导致关于设施升级的艰难财务决策.
- AAALAC的现场考察强调了需要评估旧设施的料储存做法.
研究的目的:
- 评估非标准储存条件对料稳定性和营养含量的影响.
- 为了确定在不理想的环境条件下,料是否仍然安全有效地供动物食用.
- 提供支持料稳定性评估的数据,作为昂贵设施改造的替代方案.
主要方法:
- 测试了三个储存条件:控制 (指南推),可变温度/湿度和高温/指南推的湿度.
- 料样本存储了6个月,在0,3个月和6个月后进行分析.
- 评估的参数包括全料分析,视网醇和胺水平,以及菌/酵母数量.
主要成果:
- 在所有测试的储存条件和时间点中,料的营养含量仍然相对相当.
- 在任何条件下都没有观察到酵母或菌生长的显著增加.
- 在所有存储环境中,胺和视网醇的可接受水平保持在6个月的标志上.
结论:
- 测试的料即使存储在实验室动物护理和使用指南的参数之外,也仍然可以用于动物食用.
- 料稳定性评估可以成为面临维持料储存理想环境条件的挑战的机构的可行策略.
- 研究结果表明,在不损害动物福利或营养的情况下,在料储存协议中的灵活性可能是可能的.
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