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Effect of maternal metabolizable protein supplementation during late gestation on fetal visceral organ weight with application of proteomics to investigate skeletal muscle development in sheep.

机译:蛋白质组学研究绵羊骨骼肌发育过程中,孕晚期补充孕产妇可代谢蛋白对胎儿内脏器官重量的影响。

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摘要

The experiment investigated supplementation of maternal metabolizable protein in an isocaloric diet during late gestation on fetal organ growth and skeletal muscle development in sheep. Although fetal body weight was unaffected by treatment, visceral organ weights were sensitive to MP treatment as alterations in small intestinal mass and perirenal adipose tissue content suggest impacts on postnatal growth. Two-dimensional gel electrophoresis and mass spectrometry compared the sarcoplasmic and myofibrillar protein fractions of fetal skeletal longissimus muscle, identifying spots from the sarcoplasmic and myofibrillar protein fractions (30 and 12, respectively). Increased expression of fructose-bisphosphate aldolase in fetal muscle from protein-supplemented and protein-restricted ewes when compared to those from control ewes suggests a positive influence on rate of glycolysis and muscle turnover in these offspring. Further research on maternal supplementation with metabolizable protein in isocaloric diets is needed to improve fetal growth efficiency, thereby optimizing offspring performance.
机译:该实验研究了在妊娠后期等热量饮食中补充母体可代谢蛋白对绵羊胎儿器官生长和骨骼肌发育的影响。尽管胎儿体重不受治疗的影响,但内脏器官的重量对MP治疗敏感,因为小肠肿块和肾周脂肪组织含量的变化暗示了对出生后生长的影响。二维凝胶电泳和质谱法比较了胎儿骨骼长肌的肌浆蛋白和肌原纤维蛋白组分,从肌浆蛋白和肌原纤维蛋白组分中分别鉴定出斑点(分别为30和12)。与对照母羊相比,补充蛋白质和限制蛋白质的母羊在胎儿肌肉中果糖二磷酸醛缩酶的表达增加,表明这些子代对糖酵解速率和肌肉更新具有积极影响。需要对等热量饮食中的母亲补充可代谢蛋白进行进一步研究,以提高胎儿的生长效率,从而优化后代性能。

著录项

  • 作者

    Schwartz, Christina Anne.;

  • 作者单位

    North Dakota State University.;

  • 授予单位 North Dakota State University.;
  • 学科 Agriculture Animal Culture and Nutrition.
  • 学位 M.S.
  • 年度 2012
  • 页码 97 p.
  • 总页数 97
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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