性矿物复合物缓冲添加对早期哺乳期奶牛牛奶的性能,血液参数和小肠微生物群的影响
Xiaoting Zhou1, Cheng Guo1,2,3, Xiaowei Wang3
1State Key Laboratory of Animal Nutrition and Feeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing, China.
Microbiology spectrum
|November 5, 2025
概括
用性矿物复合缓冲剂 (AMCB) 补充早期哺乳期的奶牛,提高了牛奶的产量和质量,同时提高了肝功能. 这种饮食干预也积极调节了小牛皮的微生物组成,从而改善了牛的健康和生产力.
科学领域:
- 动物科学动物科学
- 乳制品营养 乳制品营养
- 鲁门 微生物学
背景情况:
- 早期的哺乳期对奶牛来说是代谢要求很高的,增加了亚急性乳头酸症的风险.
- 优化乳头功能和减轻代谢压力对于最大限度地提高牛奶产量和牛健康至关重要.
- 在早期哺乳期的奶牛中,复合缓冲剂的有效性需要进一步研究.
研究的目的:
- 评估性矿物复合缓冲剂 (AMCB) 对早期哺乳期荷尔斯坦牛的哺乳性能的影响.
- 评估AMCB对血液参数,乳头发酵和微生物群体组成的影响.
- 确定AMCB作为改善奶牛健康和生产力的饮食策略的潜力.
主要方法:
- 30头早期哺乳期的荷尔斯坦牛被随机分配到对照组或接受每日AMCB补充剂的组.
- 亚美银提供了甲酸盐,二碳酸,氧化和Ge-132.
- 评估结果包括干物质摄入量,牛奶产量和成分,血液参数,乳氨和微生物分析.
主要成果:
- 补充AMCB显著增加了干物质摄入量,牛奶产量,脂肪修正牛奶,能量修正牛奶,乳糖和牛奶蛋白.
- 人体细胞数量减少,血清肝酶 (AST,ALT) 减少,表明肝功能得到改善.
- 氨增加,细菌丰富性呈现改善趋势,并调节了特定的细菌群 (Prevotellaceae,Ruminococcaceae,Enterococcus).
结论:
- 性矿物复合缓冲剂 (AMCB) 补充剂可提高早期哺乳期奶牛的哺乳性能和牛奶质量.
- AMCB可缓解肝脏功能障碍,并积极影响肠中的微生物种群,特别是降解蛋白质的细菌.
- 在早期哺乳期,AMCB代表了一种有希望的饮食干预措施,以优化乳牛的代谢健康和生产力.
相关概念视频
Buffers
172.0K
A solution containing appreciable amounts of a weak conjugate acid-base pair is called a buffer solution, or a buffer. Buffer solutions resist a change in pH when small amounts of a strong acid or a strong base are added. A solution of acetic acid and sodium acetate is an example of a buffer that consists of a weak acid and its salt: CH3COOH (aq) + CH3COONa (aq). An example of a buffer that consists of a weak base and its salt is a solution of ammonia and ammonium chloride: NH3 (aq) + NH4Cl...
172.0K
Buffer Effectiveness
54.8K
Buffer solutions do not have an unlimited capacity to keep the pH relatively constant . Instead, the ability of a buffer solution to resist changes in pH relies on the presence of appreciable amounts of its conjugate weak acid-base pair. When enough strong acid or base is added to substantially lower the concentration of either member of the buffer pair, the buffering action within the solution is compromised.
The buffer capacity is the amount of acid or base that can be added to a given volume...
The buffer capacity is the amount of acid or base that can be added to a given volume...
54.8K
Bicarbonate-Carbonic Acid Buffer
5.2K
The carbonic acid-bicarbonate buffer system is critical for maintaining the body's pH balance. It operates on the equilibrium:
5.2K
Protein Buffers in Blood Plasma and Cells
3.6K
The human body utilizes protein buffer systems to maintain a stable pH. These systems capitalize on the dual role of amino acids, which can act as acids or bases by accepting or releasing hydrogen ions in response to pH changes. Protein buffer systems are particularly significant in the extracellular fluid (ECF) and intracellular fluid (ICF) of active cells, where structural and functional proteins provide substantial buffering capacity.
Certain amino acids can exist in a zwitterion state at a...
Certain amino acids can exist in a zwitterion state at a...
3.6K
Buffers: Overview
9.4K
Buffers play a crucial role in stabilizing the pH of a solution by mitigating the effects of small amounts of added acid or base. They consist of a weak acid and its conjugate base or a weak base and its conjugate acid. A solution of acetic acid and sodium acetate is an example of a buffer that consists of a weak acid and its salt: CH3COOH (aq) + CH3COONa (aq). An example of a buffer that consists of a weak base and its salt is a solution of ammonia and ammonium chloride: NH3 (aq) + NH4Cl (aq).
9.4K
Buffer Systems in the Body
3.6K
Chemical buffers play a critical role in the body's regulation of pH levels. These systems contain one or more compounds that stabilize pH changes by neutralizing strong acids or bases. When pH levels drop, hydrogen ions bind to a weak base; when pH levels rise, hydrogen ions are released. This dynamic process helps maintain pH within a narrow and stable range essential for normal physiological function.
A typical buffer system in bodily fluids includes a weak acid and its corresponding...
A typical buffer system in bodily fluids includes a weak acid and its corresponding...
3.6K


