Age effects and the influence of varying proportions of terrestrial and marine dietary protein on the stable nitrogen-isotope compositions of pig bone collagen and soft tissues from a controlled feeding experiment
Age effects and the influence of varying proportions of terrestrial and marine dietary protein on the stable nitrogen-isotope compositions of pig bone collagen and soft tissues from a controlled feeding experiment
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受控饲养实验的年龄效应以及不同比例的陆地和海洋膳食蛋白质对猪骨胶原和软组织稳定氮同位素组成的影响
DOI：
10.1080/20548923.2015.1133121
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发表时间：
2016
影响因子：
3.5
通讯作者：
Webb E
中科院分区：
文献类型：
--
作者：
Webb E
在本研究中，研究人员分析了来自母猪、仔猪和猪的股胶原蛋白、肋骨胶原蛋白、股肌、腰肌和肝脏样本的氮同位素组成。本研究旨在探讨在控制饲养和圈养条件下不同年龄猪的组织与饲粮δ15N值之间的关系，并评估不同年龄猪在摄入陆源、海洋或陆源-海洋混合饲粮蛋白质时，组织中δ15N的富集情况。所有组织δ 15n值与海洋蛋白质摄取量之间存在很强的线性关系，但直到饮食中至少25%的蛋白质来源是海洋蛋白质，δ 15n值才会在食用相同饮食的所有个体中持续升高。在相同的胶原蛋白和肌肉日粮中，青春期猪的δ 15n值也始终低于仔猪或母猪，这很可能是由于年龄类别之间生长速度的差异造成的。此外，对于某些组织和动物，还观察到海洋蛋白质消费量与theΔ15NTissue -全膳食补偿之间存在线性关系。我们认为，这种差异源于与年龄相关的生长速率，以及陆地和海洋膳食蛋白质中氨基酸进入快速生长组织的差异。
In this study, femoral collagen, rib collagen, femoral muscle, loin muscle and liver samples from sows, piglets and pigs raised in a controlled feeding study are analysed for their nitrogen-isotope compositions. The objectives of this research are to investigate the relationship between tissue and dietary δ15N values across age categories under controlled feeding and housing conditions, and to assess tissue15N-enrichment relative to diet when pigs of different ages are consuming terrestrial, marine, or mixed terrestrial-marine dietary protein. There is a strong linear relationship between all tissueδ15N values and the amount of marine protein consumed, but theδ15N values do not become consistently elevated for all individuals consuming the same diet until at least 25% of the dietary protein source is marine-derived. Adolescent pigs also had consistently lowerδ15N values than either piglets or sows consuming the same diet for collagen and muscle, which is most likely caused by the differences in growth rate among the age categories. Further, for some tissues and animals, a linear relationship between the amount of marine protein consumed and theΔ15NTissue – Whole Dietoffset was also observed. We suggest that this variability results from both age-associated growth rates and differential incorporation of amino acids from terrestrial and marine dietary protein into rapidly growing tissue.
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同位素和转移注意力：对 Milner 等人和 Lidén 等人的评论。
影响因子：
1.8
作者：
R. Hedges
通讯作者：
R. Hedges
通过减少生长周期误差来改善对人类头发的稳定同位素解释。
影响因子：
2.8
作者：
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通讯作者：
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骨胶原的骨骼内同位素组成（δ(13) C、δ(15) N）：非病理性和病理性变化。
影响因子：
2.8
作者：
Karyn C. Olsen;C. White;F. Longstaffe;Kristina von Heyking;George C. McGlynn;G. Grupe;F. Rühli
通讯作者：
F. Rühli
使用头发中的稳定同位素识别饥饿事件
影响因子：
0.5
作者：
Anna;G. Grupe;S. Ufer;U. Cuntz
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U. Cuntz
家畜组织和食糜中天然 15N 丰度的变化。
DOI：
--
发表时间：
1987
期刊：
RADIOISOTOPES
影响因子：
--
作者：
M. Sutoh;T. Koyama;T. Yoneyama
通讯作者：
T. Yoneyama