在肌肉内注射后确定母猪奶中的泰洛辛度
Piotr Cybulski1, Anna Gajda2, Aleksandra Kuśmierz2
1Goodvalley Agro S.A., 77-320 Przechlewo, Poland.
Journal of veterinary research
|October 9, 2025
概括
这项研究测量了在肌肉内注射后母猪奶中的泰洛辛抗生素度. 在牛奶中检测到泰洛,在服用后不久达到峰值,并在几天内逐渐减少.
科学领域:
- 兽医药理学 兽医药理学
- 动物科学动物科学
- 食品安全 食品安全
背景情况:
- 泰洛的药理动力学在各种动物物种中得到了记录.
- 对于生物样本,也存在着对泰洛辛的分析方法.
- 没有先前的研究已经量化了母猪奶中的泰洛辛.
研究的目的:
- 为了评估乳母母乳中的泰洛辛度.
- 为了确定 tylosin 在母猪奶中的药理动力学概况.
- 为了确定 tylosin 在母猪中的分泌模式.
主要方法:
- 五只哺乳母猪在三天内接受了肌肉内提洛辛 (10毫克/公斤) 治疗.
- 在注射后的多个时间点收集牛奶样本 (3小时,1,2,5,7,14,21天).
- 超高性能液体色谱与双重质谱 (UHPLC-MS/MS) 用于泰洛辛的确定.
主要成果:
- 泰洛辛的最大度 (1,802μg/L) 发生在注射后3小时.
- 可检测的度持续到第7天 (6μg/L).
- 泰洛水平在第14天低于量化极限.
结论:
- 泰洛素很容易穿过母猪的血液-牛奶屏障.
- 随着时间的推移,母猪奶中的抗生素度会下降.
- 这是第一个报告提洛辛在母猪奶中分泌的研究.
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