The influence of varying proportions of terrestrial and marine dietary protein on the stable carbon-isotope compositions of pig tissues from a controlled feeding experiment
The influence of varying proportions of terrestrial and marine dietary protein on the stable carbon-isotope compositions of pig tissues from a controlled feeding experiment
复制标题
控制饲养实验中不同比例的陆地和海洋膳食蛋白质对猪组织稳定碳同位素组成的影响
DOI:
10.1080/20548923.2016.1275477
复制
发表时间:
2017
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
In recent years, it has become evident that limitations exist in our ability to meaningfully assess palaeodiet using stable isotope compositions. These limitations in part arise because many of the fundamental assumptions about tissue-diet relationships are poorly understood. In order to redress this deficiency, a controlled feeding experiment was undertaken to define the impact of terrestrial- vs. marine-derived dietary protein consumption on consumer tissue carbon isotopic compositions (δ13C). Two generations of pigs were raised on one of five feeds with varying proportions of terrestrial (soy) and marine (fish meal) protein. A comprehensive range of tissues and fluids from 49 pigs was submitted forδ13C analysis.The observed tissue–whole diet and tissue–dietary protein carbon isotopic offsets were found to be highly dependent on the percentage of marine protein in diet. We suggest that the trend inδ13C offsets most likely derives from the increased routing of non-essential amino acids, especially glycine, with the increasing proportion of marine protein in the diet. These findings demonstrate that solely using bulkδ13C compositions not only masks considerable information about diet, but may also lead to erroneous representations of marine and terrestrial resource consumption in the past.
登录
查看更多内容
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
Christina G Warinner;N. R. García;N. Tuross
通讯作者:
N. Tuross
影响因子:
2.8
作者:
K. Knudson;Ann H. Peters;Elsa Tomasto Cagigao
通讯作者:
Elsa Tomasto Cagigao
影响因子:
1.8
作者:
R. Hedges
通讯作者:
R. Hedges
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
V. Jones
通讯作者:
V. Jones
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
P. Tomczak
通讯作者:
P. Tomczak