利用微生物和宏观生物的环境微生物学干预来评估牛管理
Marcos Daniel Gomes Filgueiras1, Gabriel Moura Mascarin2, Valesca Henrique Lima1
1Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, Goiás, Brazil.
Scientific reports
|May 6, 2025
概括
结合肠病原菌 (EPF) 和肠病原性线虫 (EPN),为牛 (Rhipicephalus microplus) 控制提供了一个可持续的策略. 这种综合方法在实验室研究中显示出协同效应,并且在实地研究中显著减少,特别是在雨季.
科学领域:
- 农业昆虫学 农业昆虫学
- 虫害管理 虫害管理 虫害管理
- 生物控制 生物控制
背景情况:
- 牛 (Rhipicephalus microplus) 在全球范围内造成畜牧业生产的重大经济损失.
- 可持续和环保的虫控制方法对于综合性害虫防治战略至关重要.
- 昆虫病原体为传统的化学治疗提供了一个有希望的替代方案.
研究的目的:
- 评估结合肠病原菌 (EPF) 和肠病原性线虫 (EPN) 的疗效,以控制Rhipicephalus microplus.
- 为了评估Metarhizium spp.的协同效应. 和对牛的细菌菌菌.
- 在不同季节的实验室和现场条件下确定EPF和EPN的有效性.
主要方法:
- 实验室测定使用Metarxizium robertsii conidia的分剂量与Heterorhabditis bacteriophora感染性幼虫相结合,对吞的R. microplus雌性进行检测.
- 现场试验评估了M. robertsii microsclerotia的颗粒配方,在受感染的牧场上与H. bacteriophora感染的幼虫一起应用.
- 在野外条件下,雨季和干季期间虫数量减少的评估.
主要成果:
- 在实验室中,EPF和EPN的联合应用表明了协同效应,显著改善了控制.
- 在雨季的野外应用导致虫数量减少,M. robertsii减少了54.09%,H. bacteriophora减少了38.11%,组合减少了46.72%.
- 在干旱季节,只有真菌配方表现出显著的疗效,减少了种群的26.27%.
结论:
- 昆虫病原菌和线虫的组合显示出对Rhipicephalus microplus的协同控制的潜力.
- EPF和EPN可以作为可持续牛管理的宝贵补充工具,减少对化学农药的依赖.
- 季节性变化影响生物控制剂对牛的有效性,突出显示了适应性策略的必要性.
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