竞争性排斥产品作为一种抗微生物替代品,用于控制 brojlers中的Salmonella Heidelberg
Isis M M Kolososki1, Mauro M S Saraiva1, Camila F Nascimento1
1São Paulo State University (UNESP), School of Agricultural and Veterinary Sciences, Jaboticabal, Brazil.
Letters in applied microbiology
|July 23, 2024
概括
有氧培养产品显著降低了沙门氏菌海德堡在肉的脱落和殖民,改善了肠道健康. 这种竞争性排斥策略为控制家禽中食源性病原体提供了一个有希望的方法.
科学领域:
- 兽医微生物学 兽医微生物学
- 食品安全 食品安全
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- 非伤寒型的沙门氏菌spp. 感染和抗菌素耐药性构成了全球食品安全的挑战.
- 控制家禽中的沙门氏菌对于预防食源性疾病至关重要.
研究的目的:
- 评价来自无氧和有氧培养的竞争性排除产品,用于控制 brojlers中的海德堡沙门氏菌 (SH).
- 评估这些产品对全身感染,菌殖民,便分泌和肠道健康的影响.
主要方法:
- 105只肉被分为三个组:对照组,无氧培养治疗和有氧培养治疗.
- 鸟类受到海德堡沙门氏菌的挑战.
- 肠道形态测量,便分泌 (便) 和便殖民 (CFU/g) 在感染后21天内进行了分析.
主要成果:
- 有氧培养组 (C组) 呈现出最低的阳性便拭子百分比 (45.33%).
- 在感染后的5,7天和14天,C组的眼膜中的细菌数量显著下降.
- 感染后21天,C组的肠道形态也显著改善.
结论:
- 在有氧条件下开发的竞争性排除产品有效地保护肉免受海德堡沙门氏菌的侵害.
- 有氧培养疗法提高了肠道健康,减少了家禽中的病原体泄露.
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