相关实验视频
Updated: Sep 19, 2025
08:40
Chronic Salmonella Infection Induced Intestinal Fibrosis
Published on: September 22, 2019
7.3K
饮食引起的低度慢性炎症对 brojlers 对沙门氏菌殖民和致病性的敏感性的影响
Michael H Kogut1, J Allen Byrd1, Kenneth Genovese1
1Southern Plains Agricultural Research Center, USDA-ARS, College Station, TX, USA.
Poultry science
|June 6, 2025
概括
在料中去除抗生素会增加肉对沙门氏菌的敏感性. 高纤维饮食诱导肠道炎症,促进病原体的殖民和入侵,影响家禽业的经济.
科学领域:
- 禽畜科学 禽畜科学 禽畜科学
- 动物营养 动物营养
- 微生物学 微生物学
背景情况:
- 抗生素增长促进剂 (AGPs) 的去除与肠道炎症有关.
- 关于家禽中AGP去除和沙门氏菌敏感性的有限数据.
- 饮食成分可以诱导低度慢性肠道炎症.
研究的目的:
- 假设饮食引起的炎症会增加肉的沙门氏菌易感性.
- 研究高纤维饮食对沙门氏菌 (Salmonella enterica serovar Enteritidis (SE)) 殖民和致病性的影响.
- 评估饮食对肉表现和肠道健康的影响.
主要方法:
- 两个实验,每只250只肉.
- 饮食:基础玉米-大豆与玉米-大豆+30%的米 (高NSP).
- 在化后1,7,14或21天口服SE挑战;在28天后进行评估.
主要成果:
- 高NSP饮食减少了体重增加和料摄入量,增加了料转换比率 (FCR).
- 养高NSP长达7天以上的鸟类在和肝脏中显示出显著更高的SE.
- 在高NSP饮食养7天以上的鸟类中增加SE恢复.
结论:
- 饮食引起的慢性肠道炎症为沙门氏菌的殖民创造了有利的环境.
- 低度的肠道炎症会对家禽的表现产生负面影响,并增加对肠道病原体的敏感性.
- 调查结果强调了对家禽业的经济后果.
相关概念视频
01:26Factors Affecting the Risk of Infection
12.3K
The hosts' susceptibility to infection depends on several factors. The integrity of the skin and mucous membranes helps protect the body against microbial attacks. When the skin is altered, the chance of infection, limb loss, and even death increases.
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
12.3K
01:30Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy
432
Various diagnostic tests are employed in the diagnostic process for Inflammatory Bowel Disease (IBD), particularly to differentiate between Crohn's disease and ulcerative colitis.
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
Diagnostic studies
A colonoscopy is the definitive screening test, distinguishing ulcerative colitis from other colon diseases with similar symptoms. During a colonoscopy test, inflamed mucosa with exudate ulcerations can be observed, and biopsies are taken to determine the histologic characteristics of the...
432