在山羊中,番茄果汁的降解动力学和蛋白质肠道消化能力
Yong Long1,2, Siwaporn Paengkoum3, Shengyong Lu1
1School of Animal Technology and Innovation, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, Thailand.
Frontiers in veterinary science
|January 26, 2026
概括
在山羊中,与大豆粉相比,整个西红和西红果汁显示出更快的膜降解和更好的肠道蛋白质消化能力. 这些发现凸显了它们作为有价值的料成分的潜力.
科学领域:
- 动物营养 动物营养
- 动物生理学 动物生理学
- 料科学 料科学
背景情况:
- 大豆粉 (SBM) 是一种常见的蛋白质来源,但其体降解和肠道消化性可能有所不同.
- 全番茄 (WT) 和番茄果汁 (TP) 是潜在的替代料成分,其营养益处尚未得到充分研究.
- 了解这些成分的降解动力学和蛋白质消化能力对于优化反动物饮食至关重要.
研究的目的:
- 为了比较SBM,WT和TP的膜降解动力学.
- 为了评估山羊的SBM,WT和TP的肠道蛋白质消化能力.
- 评估WT和TP作为反动物蛋白质来源的潜力.
主要方法:
- 在 rumen-cannulated山羊 (n=3) 中使用尼龙袋技术进行现场化.
- 潜伏期从2小时到72小时不等,以评估降解速度.
- 在体外采用三步程序来确定肠道蛋白质的消化能力.
主要成果:
- 与SBM相比,WT的降解率 (DM,OM,CP,NDF,ADF) 和有效降解率显著更高 (P<0.01).
- 与SBM相比,TP显示DM和OM的降解率更高,CP降解在8小时后也超过SBM (P <0.01).
- 无论是WT还是TP,肠道CP消化率 (Idg,%) 和IDCP (g/kg) 都明显高于SBM (P<0.01).
结论:
- 与大豆粉相比,整个西红和西红果汁具有更优异的膜降解特性.
- WT和TP提高了肠道蛋白质的消化能力,表明它们作为山羊有效的蛋白质补充剂的价值.
- 这些发现支持将WT和TP纳入反动物的饮食,以改善营养利用.
相关概念视频
01:02Protein Digestion
110.8K
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.
110.8K
02:58Regulated Protein Degradation
8.8K
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
8.8K
02:58Regulated Protein Degradation
3.2K
3.2K
02:11Proteins: From Genes to Degradation
14.4K
Within a biological system, the DNA encodes the RNA, and the nucleotide sequence in the RNA further defines the amino acid sequence in the protein. This is referred to as “The Central Dogma of Molecular Biology” - a term coined by Francis Crick. Central dogma is a firm principle in biology that defines the flow of genetic information within any life form. The two fundamental steps in central dogma are - transcription and translation.
Transcription is the synthesis of RNA...
Transcription is the synthesis of RNA...
14.4K
02:11Proteins: From Genes to Degradation
4.5K
4.5K
01:29Intestinal Phase of Digestion
7.2K
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...
7.2K