Variations of natural 15N abundances in the tissues and digesta of domestic animals.
Variations of natural 15N abundances in the tissues and digesta of domestic animals.
复制标题
家畜组织和食糜中天然 15N 丰度的变化。
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
T. Yoneyama
中科院分区：
文献类型：
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作者：
M. Sutoh;T. Koyama;T. Yoneyama
本文研究了牛、猪和山羊组织中~（15）N的自然丰度（以~（15）N/mil相对于空气N_2的变化表示）和消化过程中~（15）N丰度的变化。牛组织的15 N丰度差异约3.5%，心脏、膀胱和膈肌中的15 N丰度较高。牛的年龄对牛肝脏和肾脏的15 N丰度没有影响。牛和猪的尿中15 N含量较低，粪便中15 N含量略高于日粮中15 N含量。牛奶和血液的δ 15 N值高于日粮。在山羊消化日粮的过程中，15 N丰度在前胃和盲肠出现两个高峰。并对动物体内15 N丰度变化的机理进行了初步探讨。
The natural abundance of 15N (expressed as delta 15N per mil relative to air N2) in the tissues and the change of 15N abundance during the digestion processess in cattle, pig, and goat were investigated. The 15N abundances of cattle tissues differed by about 3.5% with high values in heart, urinary bladder and diaphragm. The ages of cattle did not affect on the 15N abundances of liver and kidney in cattle. The 15N abundances of urine were lower, and those of feces were a little higher than the values of diets in cattle and pigs. The delta 15N values of milk and blood were higher than the value of diets. Two peaks of 15N abundances at forestomach and caecum were observed during the digestion processes of diet in goats. The mechanisms of the variation of 15N abundances in animal bodies were briefly discussed.