对于 brojlers 的酵母,甲,氧甲和纳米的相对生物可用性
Guoqing Liu1,2, Sumei Cao1,3, Liang Huang1
1Mineral Nutrition Research Division, State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, China.
Frontiers in veterinary science
|February 3, 2025
概括
这项研究比较了 brojlers的新 (Se) 来源. 甲 (SM) 和海酵母 (SY) 的生物利用率高于甲 (SS),而纳米-Se (NS) 的生物利用率较低.
科学领域:
- 动物营养 动物营养
- 微量元素的新陈代谢
- 禽畜科学 禽畜科学 禽畜科学
背景情况:
- (Se) 是动物健康和生产力的重要微量元素.
- 越来越需要提高生物可用性和降低毒性的Se来源.
- 在 brojlers中新型Se形式的生物可用性需要彻底调查.
研究的目的:
- 评估四种新型Se来源的相对生物利用性:海酵母 (SY),甲 (SM),基-甲 (SO) 和纳米-Se (NS).
- 为了比较这些新型来源与标准来源,化 (SS).
- 用各种生理和生化指标评估肉中的Se生物利用性.
主要方法:
- 进行了一项5x3的因数设计实验,对576只Arbor Acres肉进行了测试.
- 在21天的时间里,肉被食了补充SY,SM,SO,NS或SS的三种水平 (0.15,0.30,0.45毫克/公斤) 的食.
- 通过测量血和组织中的Se度,谷氨过氧化酶 (GPX) 活性和蛋白基因表达来确定相对生物利用性.
主要成果:
- 增加Se补充剂在肉中线性增强了Se水平和GPX活性.
- 在不同源中观察到沉积和GPX活性的显著差异.
- 与烯酸 (100%) 相比,相对生物利用率是:SY (78-367%),SM (67.8-471%),SO (57-372%),和NS (45-92%).与烯酸相比,相对生物利用率是:SY (78-367%),SM (67.8-471%),SO (57-372%),和NS (45-92%).
结论:
- 胺 (SM) 和海鲜酵母 (SY) 在肉中显示出与胺 (SS) 相比,在肉中具有更高的Se生物利用性.
- 基胺提氨酸 (SO) 也显示出与SS.相比的可比性或更高的生物利用性.
- 在测试的新型Se来源中,纳米Se (NS) 的相对生物利用率最低.
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