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首页> 外文期刊>Animal Science Journal >Relationships between mineral concentrations and physicochemical characteristics in the Longissimus thoracis muscle of Japanese Black cattle
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Relationships between mineral concentrations and physicochemical characteristics in the Longissimus thoracis muscle of Japanese Black cattle

机译：日本黑牛长碱胸肌矿物质浓度与物理化学特性的关系

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摘要

The relationship between mineral concentrations, and the relationship of mineral concentrations with physicochemical characteristics in muscles were investigated using the Longissimus thoracis (LT) muscle of 44 Japanese Black steers. We determined moisture content, fat content, meat color, fatty acid composition and mineral concentrations in the LT muscle. Magnesium (Mg), potassium (K) and zinc (Zn) concentrations had negative correlations with fat content, but sodium (Na), manganese (Mn), copper (Cu) and molybdenum (Mo) concentrations were not correlated with fat content. The concentrations of Mg, Mn, Fe, Cu and Zn largely and positively contributed to the first principal component of mineral concentrations. Because the red muscle was rich in these minerals compared to the white muscle, the variation of these minerals probably results from the abundance of red fibers in the LT muscle. The concentration of K was positively correlated with moisture content but Na concentration was not related to moisture content, suggesting that the intracellular fluid volume can largely affect moisture content. The results of the present experiment suggest that mineral concentrations reflect some traits such as not only fat content but also the composition of myofiber type and the intracellular fluid volume in the LT muscle of Japanese Black cattle.
机译：利用44名日本黑色阉牛的长叶（LT）肌肉，研究了矿物质浓度与矿物质化特征的矿物质浓度与肌肉的关系。我们在LT肌肉中确定了水分含量，脂肪含量，肉颜色，脂肪酸组成和矿物质浓度。镁（Mg），钾（K）和锌（Zn）浓度与脂肪含量具有负相关，但钠（Na），锰（Mn），铜（Cu）和钼（Mo）浓度与脂肪含量不相关。 Mg，Mn，Fe，Cu和Zn的浓度很大而且呈积极地导致矿物浓度的第一主成分。由于与白肌肉相比，红色肌肉富含这些矿物质，因此这些矿物的变化可能是由LT肌肉中的红色纤维的丰度导致。 K的浓度与水分含量正相关，但Na浓度与水分含量无关，表明细胞内液体体积可以很大程度上影响水分含量。本实验的结果表明，矿物质浓度反映了一些不仅脂肪含量，还反映了一些脂肪含量，也反映了日本黑牛的LT肌肉中的肌纤维型和细胞内液体体积的组成。

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