在肉中发现的一种新型氨酸纳米粒子:生物可用性和要求
Mahmoud Ghazaghi1, Mehravar Mehri2, Morteza Asghari-Moghadam1
1Department of Animal Sciences, Faculty of Agriculture, University of Zabol, Zabol, Sistan, IRAN.
PloS one
|April 17, 2024
概括
这项研究发现,与DL-methionine (DL-Met) 相比,用nano-methionine (nano-Met) 补充肉饮食可以改善生长和肉类产量. 纳米氨酸还表现出抗氧化特性,降低了肉类中的马隆迪化物水平.
科学领域:
- 动物营养 动物营养
- 生物化学 生物化学
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- 氨酸是一种必需的氨基酸,对家禽生长和肉类生产至关重要.
- 优化 metionin 补充对于料效率和动物福利至关重要.
- 纳米粒子技术为提高营养素的生物可用性提供了潜力.
研究的目的:
- 为了评估相对生物可用性 (RBV) 的纳米甲 (纳米-Met) 与DL-methionine (DL-Met) 在开始 brojlers.
- 为了估计DL-Met和纳米-Met来源的氨酸需求.
- 评估 metionin 补充剂对生长性能,肉类产量和氧化应激标志物的影响.
主要方法:
- 对825只一天大的雄性Ross 308肉进行了生物试验.
- 鸟类被食11种饮食,其中DL-Met或纳米-Met的含量各不相同 (0.35%至0.60%SID-Met).
- 测量了体重增加 (BWG),乳房肉产量 (BMY),大腿肉产量 (TMY),料转化率 (FCR) 和肉类甲酸 (MDA).
主要成果:
- 在BWG (102%),FCR (134%) 和TMY (110%) 中,纳米金属的RBV高于DL-Met.
- 氨酸补充剂增加了BWG,BMY和TMY,同时降低了FCR和MDA度.
- 氨酸补充对MDA的影响最大,这表明它具有强大的抗氧化特性.
结论:
- 将DL-methionine颗粒大小减少到纳米颗粒可以提高 brojlers 中的 metionin 效率.
- 纳米氨酸补充剂是改善家禽生产和肉质的有希望的策略.
- 需要进一步的研究,以充分探索纳米甲因在肉营养中的好处.
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