奶牛养殖者收入,工作时间和在不同的干牛治疗方案下使用抗菌剂
Thomas Le Page1, Ahmed Ferchiou2, Simon Dufour1
1Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, J2S 2M2, Québec, Canada; Regroupement FRQNT Op+lait, Saint-Hyacinthe, J2S 2M2, Québec, Canada.
Journal of dairy science
|June 22, 2024
概括
选择性干牛疗法 (SDCT) 可以减少乳牛群的抗菌剂使用. 采用内部乳头密封剂实施SDCT显示了积极农场收入的潜力,而不会显著影响农民的工作时间.
科学领域:
- 兽医医学 兽医医学 兽医医学
- 动物科学动物科学
- 农业经济学 农业经济学
背景情况:
- 乳腺炎是一种流行乳牛疾病,影响农场经济,劳动力和抗菌素使用 (AMU).
- 选择性干牛疗法 (SDCT) 提供了一种减少AMU的策略,同时保持阴茎健康.
研究的目的:
- 评估在奶牛群中实施SDCT的经济和劳动力影响.
- 通过生物经济模型评估SDCT对抗菌药物使用和农民收入的影响.
主要方法:
- 用一个随机的乳制品模拟模型 (DairyHealthSim) 来模拟群体动态和健康事件.
- 确定了20个SDCT场景,其中包括不同的体细胞计数 (SCC) 值,牛奶细菌学和内部乳头密封剂 (ITS) 使用.
- 四分之一级乳内感染 (IMI) 动态被特别模拟.
主要成果:
- 一般来说,SDCT协议对农民收入的影响很小,有些协议产生了积极的毛利率 (高达15.83加元/干牛).
- 整合所有奶牛的ITS增强了经济收益.
- SDCT对工作时间的影响很小,除非牛奶细菌学为治疗决策提供了信息.
结论:
- SDCT是一种可行的策略,可以在没有显著的负面经济后果的情况下减少乳牛的AMU.
- 对SCC>200,000细胞/毫升的奶牛进行抗菌治疗,并与所有奶牛的ITS相结合,是大多数农场推的方法.
- 这些发现可以支持农民采用SDCT来优化群体管理和减少AMU.
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