氨基酸复合体对 brojlers 的生长性能,肉质,乳腺肌肉和骨发育的影响
1College of Animal Science and Technology, Hunan Agricultural University, Hunan, China.
British poultry science
|July 12, 2024
概括
饮食中的 (Mn) 氨基酸复合物改善了 brojler 的生长性能,肉质和骨发育. 补充氨基酸复合物增强了组织沉积和肌肉发育,积极影响肉的健康和生产力.
科学领域:
- 动物营养 动物营养
- 禽畜科学 禽畜科学 禽畜科学
- 生物化学 生物化学
背景情况:
- 是一种重要的微量元素,对 brojlers 的各种生理功能至关重要.
- 摄入源的食补充剂可以影响肉的表现和肉质.
- 了解不同形式的的影响,如氨基酸复合物,对于优化 brojler 营养至关重要.
研究的目的:
- 研究饮食中 (Mn) 氨基酸复合体对肉生长,沉积,肉质,肌肉和骨发育的影响.
- 为了比较氨基酸复合物的功效与无机硫酸和羽毛粉.
- 阐明MnN对肌肉和骨发育的影响背后的分子机制.
主要方法:
- 总共有504只Arbor Acres肉被食不同水平的氨基酸复合物 (MnN),硫酸 (MnS) 或羽毛粉 (MnA) 的饮食.
- 评估了生长性能 (ADG,ADFI,FCR),组织Mn沉积 (大腿,阴,心脏,胰腺,肝脏,骨) 和肉质 (颜色,pH,剪切力,滴滴损失).
- 基因表达分析 (MYOD,SOD,MuRF1,阿特罗金-1,SOX-9,Runx-2,等等) 进行了分析. 和转录组分析在乳腺肌肉和骨生长板上进行.
主要成果:
- 食补充MnN对料转化率 (FCR) 有四次性影响,FCR最低为80 mg/kg.
- MnN显著增加了各种组织中的Mn沉积,并改善了乳腺肌肉质量 (颜色,pH,减少剪切力,滴滴损失).
- MnN高调肌肉发育基因 (MYOD,SOD) 和低调肌肉降解基因 (MuRF1,Atrogin-1),同时通过调节状细胞基因表达来促进骨发育.
结论:
- 氨基酸复合物有效地改善肉生长性能,组织Mn沉积,肉质,以及乳腺肌肉和骨发育.
- 补充MnN对肌肉蛋白质合成产生积极影响,并抑制肌肉蛋白质分解,有助于加强肌肉发育.
- 食MnN通过促进软骨细胞的增殖和分化来增强纵向骨生长,这表明它在骨发育中的重要作用.
更多相关视频
08:29Measuring Liver Mitochondrial Oxygen Consumption and Proton Leak Kinetics to Estimate Mitochondrial Respiration in Holstein Dairy Cattle
Published on: November 30, 2018
11.3K
07:46Author Spotlight: Improving Beef Cattle Nutrition and Production with a Focus on Feed Efficiency and Meat Quality Traits Through Advanced Biochemical and Molecular Assays
Published on: July 12, 2024
506
相关概念视频
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
01:29Bone Disorders
3.5K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.5K
01:17Hormones and Bone Tissue
2.6K
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
2.6K