不同的食纤维来源的组合改善了1至42d年龄的肉的生长性能,营养消化能力和肠功能
Feixue Hou1,2, Lei Yang1,2, Jin Liu1,2
1Jiangxi Province Key Laboratory of Animal Nutrition and Feed, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China.
Animals : an open access journal from MDPI
|March 14, 2026
概括
一种特定的胰岛素和纤维素 (MIX1) 混合物显著改善了 brojler 的生长和营养利用. 这种食纤维组合显示出作为家禽料中抗生素替代品的潜力.
科学领域:
- 动物科学动物科学
- 营养科学 营养科学
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- 抗生素增长促进剂在肉生产中被广泛使用,但面临越来越多的限制.
- 像胰岛素和纤维素这样的食纤维来源可以调节家禽的肠道健康和性能.
- 优化纤维组合对于最大限度地提高肉饮食的益处至关重要.
研究的目的:
- 研究不同食纤维组合 (胰岛素和纤维素) 对肉生长性能和肠道健康的影响.
- 评估特定纤维混合物作为抗生素补充剂的替代品的潜力.
- 为了确定肉营养中胰岛素与纤维素的最佳比例.
主要方法:
- 560英的雄性肉被分配给七种饮食治疗,包括控制,补充抗生素和各种胰岛素/纤维素组合.
- 增长性能参数 (体重,平均每日增长,食增长比率) 从1至42天的年龄被测量.
- 分析了营养利用,肠道酶活动 (乳糖酶,SOD),肠道pH值,炎症标记物 (TNF-α,IL-6) 和基因表达.
主要成果:
- MIX1饮食 (1.5%的胰岛素,0.5%的纤维素) 显著提高了体重和平均每日体重增加,同时降低了给的比率.
- 用MIX1饮食养的肉表现出改善的营养利用,增加了乳糖酶和SOD活动,并调高了关功能相关的基因.
- MIX1饮食导致肠道pH值降低,TNF-α降低,并降低了阴中的IL-6mRNA水平.
结论:
- 食纤维补充剂的总水平为2%,特别是MIX1组合,对 brojler生长性能和肠道健康产生积极影响.
- MIX1纤维混合物显示出作为一种可行的,无抗生素的替代品来提高 brojler 生产的潜力.
- 对特定纤维组合的进一步研究可以优化家禽的营养和肠道健康管理.
相关概念视频
01:28Proteins: Dietary Sources and Requirements
2.0K
Consuming animal-based products offers high-quality proteins that contain optimal levels and combinations of essential amino acids, crucial for tissue repair and growth. Foods like eggs, milk, fish, and most meats are a source of complete proteins. Legumes and cereals are abundant in proteins; however, they typically lack a full range of essential amino acids. As a result, they are considered incomplete protein sources. Some plant sources like soybeans, quinoa, and amaranth do contain complete...
2.0K
01:29Intestinal Phase of Digestion
12.0K
The intestinal phase of digestion is the third and final stage of the digestive process, occurring after the cephalic and gastric phases. It begins when chyme, a partially digested mixture of food and digestive enzymes, enters the small intestine from the stomach. This phase is crucial for nutrient absorption and involves complex hormonal and enzymatic interactions.
The arrival of the chyme in the small intestine distends the duodenum, which triggers the enterogastric reflex. This distension...
The arrival of the chyme in the small intestine distends the duodenum, which triggers the enterogastric reflex. This distension...
12.0K
01:20Digestive Functions of the Large Intestine
2.8K
The large intestine is where the final stages of digestion happen. When the cecum receives chyme, it contains undigested carbohydrates that undergo fermentation. Gut bacteria ferment these carbohydrates to produce short-chain fatty acids that provide some energy and help synthesize essential vitamins.
As the chyme moves to the colon, it triggers two characteristic sluggish contractions - haustral churning and mass peristalsis. Haustral churning involves the rhythmic contraction and relaxation...
As the chyme moves to the colon, it triggers two characteristic sluggish contractions - haustral churning and mass peristalsis. Haustral churning involves the rhythmic contraction and relaxation...
2.8K
01:02Protein Digestion
112.8K
Protein digestion begins in the stomach, where the highly acidic environment can easily disrupt protein structure by exposing the peptide bonds of polypeptide chains. After polypeptide chains are broken into individual amino acids by a series of digestive enzymes, the amino acids are transported to the liver via the bloodstream to produce energy.
112.8K
02:35Key Elements for Plant Nutrition
24.7K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.7K
01:15Carbohydrates: Dietary Sources and Requirements
2.1K
Carbohydrates are predominantly obtained from plant sources. With the exception of lactose found in milk and insignificant glycogen amounts in meat, most consumed carbohydrates have plant origins. Monosaccharides and disaccharides, or sugars, can be sourced from fruits, honey, milk, sugar cane, and sugar beets. Grains and vegetables are rich in the polysaccharide starch. Two types of polysaccharides provide fiber: cellulose, which is abundant in many vegetables, forms undigestible roughage or...
2.1K