作为肉牛的复杂或无机来源的补充微量矿物质在接收期间
Robin A Cheek1, Elizabeth B Kegley1, Jason R Russell2
1Department of Animal Science, University of Arkansas System Division of Agriculture, Fayetteville, AR 72701, USA.
Journal of animal science
|March 2, 2024
概括
复杂的微量矿物质在42天的接收期内改善了牛牛的表现,并减少了与无机来源相比的牛牛呼吸系统疾病 (BRD) 发生率. 复杂的微量矿物质增强了平均每日收益和体重增加.
科学领域:
- 动物科学动物科学
- 营养生物化学 营养生物化学
- 兽医医学 兽医医学 兽医医学
背景情况:
- 微量矿物质 (,铜,,) 对于牛的健康和表现至关重要.
- 微量矿物质的来源 (无机与复合) 可以影响它们的生物可用性和有效性.
- 了解最佳的微量矿物质补充对于管理新接收的牛肉公牛至关重要.
研究的目的:
- 为了比较复杂与无机微量矿物质来源对杂交牛小牛的表现和发病率的影响.
- 评估微量矿物质来源对体重增加,平均每日体重增加和牛呼吸系统疾病 (BRD) 发病率的影响.
主要方法:
- 进行了一项42天的接收试验,涉及287只杂交的牛犊.
- 每天补充,铜,和,来自复合物或无机来源.
- 监测了表现 (体重,平均每日增长) 和发病率 (BRD发病率,平分球蛋白度).
主要成果:
- 食复杂微量矿物质的母牛在28日和42日体重增加,平均每日体重增加 (0.78比0.70公斤/天).
- 与无机来源 (58%) 相比,补充复杂微量矿物质的公牛的BRD发病率较低 (46%).
- 在被养复杂微量矿物质的母牛中,哈普特oglobin 度倾向于下降,这表明炎症减少.
结论:
- 在到达后的42天内,用复杂的微量矿物质补充牛牛的饮食,与无机微量矿物质相比,提高了性能.
- 复杂的微量矿物质可以增强免疫功能,并降低接收公牛的BRD发病率.
- 微量矿物质来源是优化肉牛健康和生产力的重要考虑因素.
相关概念视频
01:26EDTA: Auxiliary Complexing Reagents
589
EDTA titrations are usually carried out in highly basic conditions, where the fully deprotonated form of EDTA, Y4−, actively complexes with the free metal ions in the solution. Several metal ions precipitate as hydrous oxide (hydroxides, oxides, or oxyhydroxides) under these conditions, lowering the concentration of free metal ions in the solution. For this reason, auxiliary complexing agents or ligands such as ammonia, tartrate, citrate, or triethanolamine are used in EDTA titrations to...
589
00:56Extraction: Advanced Methods
446
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
446
00:39Complexometric Titration: Overview
7.0K
Complexometric titration involves the formation of a complex by reacting a metal ion with one or more ligands. A visual indicator often detects the end point of a complexometric titration. It is added to the metal solution before the titration, forming a stable metal–indicator complex and imparting color to the solution. As the titration approaches the equivalence point, the excess of the added ligand displaces the indicator from the metal–indicator complex, releasing the free...
7.0K
01:31Essential Minerals for Bone Health
3.9K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
3.9K
00:43Complexometric Titration: Ligands
950
Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
950
02:35Key Elements for Plant Nutrition
18.7K
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...
18.7K