EFFECT OF THE RN- GENE ON ULTRASTRUCTURE AND PROTEIN-FRACTIONS IN PIG MUSCLE

被引：44

作者：

ESTRADE, M ^{[1
]}

VIGNON, X ^{[1
]}

MONIN, G ^{[1
]}

机构：

[1] INRA,RES VIANDE STN,F-63122 THEIX,FRANCE

来源：

MEAT SCIENCE | 1993年 / 35卷 / 03期

关键词：

D O I：

10.1016/0309-1740(93)90037-I

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The aim of the present experiment was to study the effect of the RN- gene on ultrastructure of white fibres and the proportion of the different protein fractions in Longissimus lumborum muscle of RN- pigs. The ultrastructure of muscle was observed in 4 RN- carrier pigs and 4 rn+rn+ homozygous pigs by mean of electron microscopy. Protein fractionation and quantification were performed on muscle from a second group of 4 RN- and 4 rn+ pigs. No change in the proportions of the different protein compartments was observed. The abnormality of the glycolytic fibres of RN- pigs seems to be rather due to an increase of the glucid concentration in the sarcoplasm, perhaps secondarily to a modified osmolarity in the intracellular medium.

引用

页码：313 / 319

页数：7

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