铁糖酸盐 (Fe-Gly) 补充剂通过调节断奶小猪的肠道免疫和微生物群来改善生长性能
Bijiang Li1,2, Aimin Wu1,2, Tingting Zhang1,2
1Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China.
Animals : an open access journal from MDPI
|February 13, 2026
概括
在小猪中补充铁糖酸盐 (Fe-Gly) 通过增加有益细菌和减少有害细菌,改善了生长和肠道健康. 与硫酸铁相比,这种铁来源增强了营养吸收,降低了腹率.
科学领域:
- 动物营养 动物营养
- 胃肠病学 胃肠病学
- 微生物学 微生物学
背景情况:
- 铁对小猪至关重要,但其生物可用性和对肠道健康的影响在来源之间有很大差异.
- 了解不同铁源对肠道健康和微生物群的影响,对于优化小猪的营养至关重要.
研究的目的:
- 为了比较 ferrous sulfate (FeSO4),ferric ammonium citrate (FAC) 和 ferrous glycinate (Fe-Gly) 对小猪生长,肠道炎症和肠道微生物群的影响.
- 评估不同铁源在断奶小猪中的生物可用性和有效性.
主要方法:
- 一项研究涉及21天大的断奶猪被食补充了FeSO4,FAC或Fe-Gly的饮食.
- 评估生长性能 (体重,ADFI,ADG),腹率,血清铁含量,总铁结合能力和肠道微生物群组成.
- 分析抗炎和抗氧化能力,并使用PICRUSt2对肠道细菌的功能预测2.
主要成果:
- 与FeSO4相比,Fe-Gly显著改善了小猪的体重,平均每日食量 (ADFI),平均每日食量 (ADG) 和减少了腹率.
- 补充Fe-Gly增加了血清铁和总铁结合能力,同时减少了结肠中铁的含量.
- 无论是Fe-Gly还是FAC都增强了抗炎和抗氧化能力. Fe-Gly促进了乳酸菌的丰富性,并抑制了大肠杆菌,积极影响了肠道微生物群和细菌功能.
结论:
- 食铁糖酸盐 (Fe-Gly) 补充剂在改善小猪生长性能和肠道健康方面优于硫酸铁 (FeSO4).
- Fe-Gly 增强全身铁状况,减少肠道铁,抑制致病细菌,促进有益的肠道细菌,导致腹减少.
- Fe-Gly 是一种高效的铁源,可以优化小猪的营养和肠道健康.
相关概念视频
What is the Immune System?
132.7K
Overview
132.7K
Anatomy of the Intestines
87.9K
Although digestion of proteins, carbohydrates, and lipids may begin in the stomach, it is completed in the intestine. The absorption of nutrients, water, and electrolytes from food and drink also occurs in the intestine. The intestines can be divided into two structurally distinct organs—the small and large intestines.
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the...
87.9K
Humoral Immune Responses
84.2K
Overview
84.2K
Small Intestine
4.2K
The small intestine is primarily responsible for digestion and nutrient absorption. It spans from the pyloric sphincter to the ileocecal valve and connects to the large intestine.
The small intestine is divided into three main sections - the duodenum, jejunum, and ileum. The duodenum, approximately 25 cm long, is nearest the stomach. It acts as a 'mixing bowl,' where chyme (partially digested food) blends with digestive enzymes from the pancreas and liver. The duodenum's unique...
The small intestine is divided into three main sections - the duodenum, jejunum, and ileum. The duodenum, approximately 25 cm long, is nearest the stomach. It acts as a 'mixing bowl,' where chyme (partially digested food) blends with digestive enzymes from the pancreas and liver. The duodenum's unique...
4.2K
Large Intestine
5.3K
The large intestine is divided into three main regions: the cecum, colon, and rectum. Extending from the ileocecal valve to the anus, it frames the small intestine on three sides.
The ileocecal sphincter, a mucous membrane fold, guards the opening from the ileum to the large intestine. This valve permits material from the small intestine to pass into the large intestine. Attached to the ileocecal valve is the cecum. This small pouch, approximately 6 cm long, has a twisted, coiled tube known as...
The ileocecal sphincter, a mucous membrane fold, guards the opening from the ileum to the large intestine. This valve permits material from the small intestine to pass into the large intestine. Attached to the ileocecal valve is the cecum. This small pouch, approximately 6 cm long, has a twisted, coiled tube known as...
5.3K
Population Growth
28.7K
Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.
28.7K


